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Compur Monitors Manual Statox 502 Control Module
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Manual
Statox 502
Control Module
Compur Monitors GmbH & Co. KG
Weissenseestrasse 101
D-81539 München
Phone: +49 (0) 89 62038 268
Fax: +49 (0) 89 62038 184
www.compur.com
compur@compur.de
Statox 502 Control Module
Content
Warning Signs ....................................................................................................................................... 3
Mounting .............................................................................................................................................. 5
Dismounting.......................................................................................................................................... 6
Connecting to power supply ................................................................................................................. 7
Start-up ................................................................................................................................................. 7
Controls................................................................................................................................................. 9
LEDs....................................................................................................................................................... 9
Display................................................................................................................................................. 10
Communication bus ............................................................................................................................ 11
Electrical connections ......................................................................................................................... 11
Connecting the external reset and analog output ................................................................... 13
Connecting the internal relays ................................................................................................. 13
Password ............................................................................................................................................. 14
Main menu structure .......................................................................................................................... 15
Service Mode ...................................................................................................................................... 16
Selecting the measuring program....................................................................................................... 16
Calibration........................................................................................................................................... 18
Reading the bridge voltage ................................................................................................................. 20
Switching the sensor power supply off............................................................................................... 21
Programming the alarm relays ........................................................................................................... 22
Alarm relays configuration ................................................................................................................. 25
Functional test .................................................................................................................................... 26
Current output in Service Mode ......................................................................................................... 28
Changing the operation mode – Control Module or Common Alarm Module .................................. 29
Status messages .................................................................................................................................. 32
Error messages.................................................................................................................................... 33
Control Module - Status diagram ....................................................................................................... 35
Common Alarm Module - Status diagram .......................................................................................... 35
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Statox 502 Control Module
Safety notes
Read and observe this manual prior to installation and start-up.
The Statox 502 Control Module is only allowed to operate under the given ambient conditions (see
Technical Data). In particular, it must not be operated in potentially explosive atmospheres!
The Statox 502 Control Module must be operated, maintained and repaired by trained and expert
personnel only. Use only Compur Monitors original parts for repair and maintenance.
Do not connect the module directly to mains!
Do not modify the product. Do not use if damaged or incomplete.
When installing this product observe all local standards and regulations.
Disregarding of the above points represents a danger to people and property.
Warning Signs
Potential Danger
!
!
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Note on an immediate danger to people and property.
Advice
Extra information for the proper use of the product.
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Statox 502 Control Module
Product description
The Statox 502 Control Module can be used in two different modes:
As a Control Module it supplies the sensor heads for toxic or combustible gases with energy and handles
their signal. It can be configured for different gases and measuring ranges. The Statox 502 Control Module
displays the concentration and converts it into a 4 – 20 mA signal at the analog output. If one of the
programmed alarm thresholds is exceeded, the relevant LED goes on, the relevant relay switches and the
relays status is communicated on the communication bus. The alarms can be set latching or non - latching.
Latching alarms can be reset by pushing the reset button or by an external contact.
Please note:
Sensor heads for toxic gases and oxygen (Statox 501/S and Statox 505) are protected in concept Ex i
(intrinsic safety) and must be connected via an intrinsically safe repeater, as far as they are intended
to be installed in a hazardous area (Zone 1 or 2).
Sensor heads for combustible gases, CO2 and VOC (Statox 501 HRC, ARE, LCIR, MCIR, Infratox, and
PID) are protected in concept Ex e (enhanced safety) or Ex d (flameproof). They can be connected
directly to the Control Module, even if they are intended to operate in Zone 1 or 2.
The Statox 502 can also be operated as Common Alarm Module. It collects the alarm signals (A1/A2/SF) of
up to 25 connected control modules and generates a common alarm on LEDs, relays and its analog output.
This way you can set up a multi - channel gas detection system. Prerequisite is that all modules are connected
to each other via bus adapter. An Error from the Control Module or the connected sensor heads will appear
on the respective Control Module as well as on the Common Alarm Module.
If power supply is provided via the optional bus plugs, it is possible to replace the modules during operation
without effort.
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Statox 502 Control Module
Set with 2 bus adapters, obligatory
for each module in bus operation,
Art.# 557002
Power supply
DIN rail TS 35
24 VDC
Connection set for bus adapter
(Bus plug left and right),
optional, Art.# 557003
Control Module, Art.# 557000
Control Module, Art.# 557000, configured as Common Alarm Module
Figure 1: Requirements for bus operation, sample installation
Getting started
The Statox 502 control modules are designed for mounting on DIN rail TS 35. Due to the tilted
mounting/dismounting of the modules the span between the outsides of the rail and the wall below and
above the Statox 502 Module must be at least 80 mm (3.15 “). Furthermore at least 120 mm (4.72 “) must
be remain free between two rail lines.
Mounting
The Control Module can be operated without bus adapter, they will be mounted on the
!
DIN rail as shown in Figure 2. In this case each module must be powered separately with
24 VDC.
1. Plug the bus adapters together and snap them on the DIN rail as shown in Figure 1.
2. Incline the module and move it to the lower part of the DIN Rail. See Figure 2.
3. Now push the module forward to the rail against the resistance of the spring lock, until you hear it
snapping in.
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Statox 502 Control Module
You can combine modules of the Statox 502 series in any sequence. Adding or removing one module has no
impact on the others. You can save wiring effort starting with the power supply on the outside and connecting
it to the bus. Alternatively the first module in a row can be connected to 24 ± 2 VDC, the others will be
supplied via bus. The power rail is rated for 30 modules max. in one row. You can interconnect multiple rows
with the optional bus plugs (Connection set Art.# 557003, 1 set per rail is needed). For further information
see Accessories list chapter 12.
2
1
Figure 2: Mounting to DIN rail
Figure 3: Dismounting from DIN rail
Dismounting
Pull the spring lock with a screw driver and incline the module simultaneously, see Figure 3. This can be done
under operating conditions.
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Statox 502 Control Module
Connecting to power supply
Do not connect the module directly to mains! Do not short circuit terminals! Both can
!
destroy the module!
There are two options connecting the 24 VDC power supply, see Figure 4.
a) Via bus plug to the communication bus
b) Directly to the relevant Statox 502 Control Module terminal
In both cases all subsequent modules are automatically connected to the power supply via bus. The terminals
are rated to take a max. diameter of 2,5 mm2 . The module starts operating as soon as it is connected to
power.
a) Bus plug (left)
0V
+24 VDC
b) Terminal block
+24 VDC
1
2
13
3
14
15
16
17 18
19
20
0V
4
5
Figure 4: Connecting the power supply
Start-up
In any case make sure to select the appropriate program prior to connecting the sensor
!
head. Otherwise the sensor can be damaged.
Ex works the Statox 502 is configurated to operate as Control Module. After connection to power, it performs
a self-test. It displays the firmware version, then for 5 seconds the actual measuring program, then “PLEASE
WAIT”. The module remains in the system fail mode until the measuring mode has successfully been
activated. During this process the red LED “S” is on.
If no sensor head is connected, an error message is generated (ERROR 2 or ERROR 5, depending on measuring
program). In this case activate the appropriate program as described in chapter 6.1. Then connect the sensor
head as described in chapter 9.
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Statox 502 Control Module
If a sensor head has been connected and the appropriate program has been selected, the measuring mode
will start.
Sensor heads for combustible gases, type HRC, ARE, LC IR, MC IR and PID must be
!
calibrated after being connected.
Exception: A line calibration has been done by Compur.
Power ON
Actual firmware version is displayed 3 s.
Actual operation program is displayed 5 s.
During this time an access to the main menu is possible.
Figure 5: Start-up sequence
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Statox 502 Control Module
Product characteristics
Controls
The Statox 502 has four push buttons.
Button
Function
Enter
Enter.
Reset
Deletes wrong entries, resets the alarm relays, goes one step back in the menu.
Left*)
Right*)
*)
Navigates left in the menu, reduces a programmed figure, changes the first
display line when in the measuring mode.
Navigates right in the menu, increases a programmed figure, changes the first
display line when in the measuring mode.
In some menus a continuous push activates the fast mode
LEDs
The Statox 502 has 4 status LEDs. The function of the individual LEDs is subsequently explained.
Description
LED
ON
Green
A1
A2
Yellow
Yellow
S
Red
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Function
Power supply:
„ON“ Power ON
„OFF“ Power voltage off or too low
Relays 1: Alarm threshold exceeded
Relays 2: Alarm threshold exceeded
Failure or service request:
„Flashing“
Service Mode
„ON“
System Failure
„OFF“
Measuring mode
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Statox 502 Control Module
Display
In the measuring mode the display shows the target gas, the actual measured value and the unit.
Example 1 (Combustible gas)
E
x
p
1
0
0
l
.
G
a
s
% L
E
L
Measured value
Gas
Unit in % LEL (Lower Explosion Level)
Example 2 (Toxic gas)
Gas
S
O
2
1
.
3
4
p
p
m
Unit in ppm (parts per million)
Measured value
In case of an over range exposure, the full scale value is going to flash.
The ►- or◄-Button change the content of the upper line to display the actual program and the end of range
value. After 20 seconds the display goes back to the standard content – the target gas.
Gas
◄
E x p l
2 0
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Program
. G a s ►◄ P r o g .
% L E L
2 0
% L
End of range value
x x
E L
►◄
1 0 0
2 0
% L
% L
E L
E L
►
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Statox 502 Control Module
Communication bus
The bus interfaces the 24 V-power supply and the alarm signals from one module to the next.
A Common Alarm Module can evaluate the alarm signals.
Bus ports
Description
0V
+24 V
A1
A2
SF
Zero - 0 V
Positive 24 ± 2 VDC
Exceeding alarm threshold 1 sets the signal on terminal A1 to Low(0V)
Exceeding alarm threshold 2 sets the signal on terminal A2 to Low(0V)
A system failure sets the signal on terminal SF to Low (0V)
Figure 6: Bus terminals
Electrical connections
The Statox 502 operates at 24 ± 2 VDC. Higher voltage or short circuits on the terminals
!
may destroy the module.
The terminals are pluggable. To remove the terminal blocks, set the screwdriver directly over the screws and
press the block to the front side.
The terminals can take cable diameters up to 2.5 mm2.
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Statox 502 Control Module
Terminal
1
2
3
4
*
5
*
6
*
7
**
*
8
*
9
** 10
** 11
*** 12
13
14
15
16
17
18
19
20
** 21
22
23
24
Contact
External Reset
GND (External Reset)
0 – 22 mA analog output
GND (0 - 22 mA output)
Sensor voltage Sense Sensor voltage +
19 ± 1 V Voltage output
Sense +
Bridge voltage
0 – 22 mA Current input
24 ± 1 V Voltage output
GND
24 V Power supply
Relay SF NC
Relay SF NO
Relay SF C
GND
Relay A2 NC
Relay A2 NO
Relay A2 C
24 ± 1 V Voltage output
Relay A1 NC
Relay A1 NO
Relay A1 C
Function
Remote Reset
Analog output
Sensor head power supply
Negative sense-lead for 5 wire operation
Sensor head power supply
Sensor head power supply without repeater
Positive Sense-lead for 5 wire operation
Signal (mV)
Signal (mA)
Sensor head power supply with repeater
GND
Power supply
System failure relay - break contact
System failure relay - make contact
System failure relay - central contact
Power supply negative
Alarm relay 2 – break contact
Alarm relay 2 – make contact
Alarm relay 2 – central contact
Sensor head power supply with repeater
Alarm relay 1 – break contact
Alarm relay 1 – make contact
Alarm relay 1 – central contact
* Sensor heads type
- Statox 501 HRC
- Statox 501 ARE
- Statox 501 LCIR
- Statox 501 MCIR
- Statox 501 PID
** Sensor heads type:
- Statox 501/S
- Statox 501 Infratox
- Statox 505
*** Sensor heads type:
- Statox 501 Infratox
- Statox 505
Figure 7: Pluggable terminal blocks with terminal numbers
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Statox 502 Control Module
Connecting the external reset and analog output
A GND-signal on terminal 1 initiates a reset just as pushing the RESET button.
The analog output generates a current analog to the actual measured value with 4 mA corresponding to
zero and 20 mA to end of scale. A measured value higher than end of scale generates 22 mA.
A system failure causes a current of 0 mA, the service mode causes a current of 2 or 4 mA (selectable).
0 – 22 mA
1
2
3
4
Figure 8: Connections external reset and analog output
Connecting the internal relays
Statox 502 has three relays, each equipped with one make and one break contact. Two relays monitor
alarm threshold exceeding, one system failure.
!
System failure relay: The SF-relay coil is always active and drops out in case of a system
failure or voltage drop.
The alarm relay parameters can be set in the main menu. The SF-relay settings cannot be changed.
Figure 9 shows the contacts:
SF
13
14
15
16
NC NO C
A2
17
18
19
20
NC NO C
A1
21
22
23
24
NC NO C
Figure 9: Relay contacts (coil de-energized)
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Statox 502 Control Module
Statox 502 main menu
Password
The main menu is password protected. No matter if in the measuring, the failure or the start mode: below
procedure gives access to the main menu.
The password is: 1994 (not changeable)
MEASURING MODE
Press both buttons for 2 s to enter
Increase or decrease value
Next digit
Correction
Change Menu item
Figure 10: Password menu
1. Push ◄- and ► -button together for 2 s.
2. Enter the first digit with ◄- or ►. Use the Reset button for corrections.
3. Confirm with Enter.
4. Continue with the next 3 digits the same way.
5. After confirming the last digit with Enter you have access to the main menu, provided the correct
password has been entered.
If message „CODE INVALID“ appears, a wrong password has been entered. Try again after two
seconds.
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Statox 502 Control Module
Main menu structure
After pushing ◄- and ► -button together for 2 s and entering the password, you have access to the main
menu. It is structured as a ring with 9 different submenus in which you can set parameters or perform a
calibration. See Figure 11. Pushing the Reset–button always brings you back into the measuring mode.
MEASURING MODE
Figure 11: Main menu structure
Submenu
Description
Page
Selecting the appropriate program for the relevant sensor head
16
Calibration with gas
18
Monitoring the bridge voltage in mV
20
Switch the sensor power supply off
21
OUTPUT TEST
Test of the LEDs, relays, alarms and the analog output
26
SERVICE OUTPUT
Setting of the analog output in the service mode
28
MODE
Altering the operation mode (Common Alarm Module or Control Module)
29
ALARM 1 RELAY
Setting Alarm 1 relays parameters
23
ALARM 2 RELAY
Setting Alarm 2 relays parameters
23
CHOOSE PROGRAM
CALIB. ROUTINE
1)
1) 2)
BRIDGE VOLTAGE 1) 2)
SENSOR POWER
1) 2)
1)
no access if the Statox 502 is operated as Common Alarm Module.
2)
no access if a program for the operation of Statox 501/S, Statox 501 Infratox and Statox 505 is active.
!
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„MENU NOT ACTIVE“ will be shown for 2 s if a menu is not accessible in the actual mode or
program.
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Statox 502 Control Module
Service Mode
As soon as the menu is entered, the module goes into the service mode. The LED „S“ is flashing, the analog
output and the relays are not active.
If no button is pushed within 30 seconds, the module returns to measuring mode. This Time-out it not active
During zero adjustment and calibration in the menu „CALIB ROUTINE“
When switching the sensor head power supply on or off in the menu „SENSOR POWER“
(Display shows „SENSOR ON“ or „SENSOR OFF“)
During the program selection in the menu „CHOOSE PROGRAM“
During the bridge voltage is displayed in the menu “BRIDGE VOLTAGE”.
Statox 502 in Control Module Operation
The sensor heads for toxic gases, oxygen or combustible gases measure the concentration of the target gas
in the field. Statox 502 evaluates the signal and displays the value. Any alarm threshold exceeding is signaled
by an LED and the alarm relays is activated. The alarm is also communicated on the bus.
Selecting the measuring program
In this menu the appropriate measuring program can be selected. The program defines the target gas, the
measuring range, the concentration window for span gas and the ex - works settings of the relays. See an
overview of all available programs in the program listing enclosed with each module.
In any case the first step is always to select the appropriate program. This must be done
!
!
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before the sensor head is connected, otherwise the sensor can be damaged.
If a new program is selected, the alarm settings and relay configurations according to the
program listing are valid and the calibration data for the sensor heads for combustible
gases, type HRC, ARE, LCIR and MCIR will be erased. A new calibration is necessary.
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Statox 502 Control Module
MEASURING MODE
Change Menu item
Active program
Select new program,
no Time-Out!
Displayed for 2 sec
New program number.
Push ENTER to start.
Start-up
Figure 12: Program selection diagram
1. Push the
- button to enter the „CHOOSE PROGRAM“ menu.
2. The active program is shown on the display.
3. Push the
!
- button to start the program selection
Now the Time-Out is deactivated!
4. Select your program with the ◄- or ►- button. Push and hold◄- or ► for the fast mode.
5. Confirm by pushing the
- button.
6. The display shows „Store“ for 2 seconds.
7. Then the number of the new program is shown.
8. Confirm by pushing the
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- button to start measuring with the new program.
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Statox 502 Control Module
Calibration
In this menu you can perform a calibration of sensor heads type Statox 501 HRC, ARE, LCIR, MCIR and PID
detecting combustible gases, carbon dioxide (CO2) and volatile organic compounds (VOC). The test gas
concentration must be within the permitted range, see program listing.
MEASURING MODE
+
R
R
R
R
R
CALIB.
ROUTINE
Change Menu item
ZERO
ADJUSTM.
Start zeroing
Flashing, searching zero point
000
APPLY
SPAN GAS
Displayed if zero point is adjusted
Flashing, turn test gas on
GAS
Signal is stable,
CALIB.
FINISHED
Turn test gas off
Input: gas concentration (value)
GAS CONC
(value) (unit)
Input: Reference factor (value)
GAS CONC
ERROR
CALIBR.
FAILED
FACTOR
x.yy
R
Correction
Confirmation
Displayed for 2 s after
DONE
GAS
(value) (unit)
successful calibration
Actual measuring value and unit
Figure 13: Calibration menu diagram
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Statox 502 Control Module
1. Enter the menu „CALIB. ROUTINE“ by pushing
.
2. The display shows: „ZERO ADJUSTM.“
!
Beginning with step 3, the automatic Time-out is not active.
3. Push the
- button. Display: „000“ flashing. The Control Module adjusts the actual zero point.
Therefore this procedure must be performed in clean or synthetic air.
4. „APPLY SPAN GAS“ tells you, that the zero point has been found and saved.
5. Make sure you have the appropriate test gas on hand. Push the
-button. Display: „GAS“ - flashing.
Connect the test gas adapter and turn on the gas. The module starts searching a stable signal.
Make sure that sufficient test gas is available. If no test gas is applied or there is not
!
enough test gas for the adjustment in the cylinder, the module reports “ERROR 8”.
6. „CALIB. FINISHED“ tells you that the signal is stable – a plateau has been found. Turn off the gas.
7. Push the
8.
- button.
In case the display does not show the concentration of the gas cylinder, adjust it by pushing the
◄- or ► - button. Push and hold ◄- or ► for speed mode. Entering the concentration must be
carried out in the respective display unit, e.g. combustible gases are shown in % LEL. See the last
column of the program listing. Confirm with Enter.
9. If needed you can enter a reference factor for the Statox 501 HRC, ARE and PID sensor heads.
Program it with the ◄- or ►- button. If you need to correct your entry, push „Reset“. How to use
response factors is described in the relevant sensor head manual. If no factor needs to be
programmed, leave the value at 1.00.
10. Close the menu with Enter.
a) Display: „GAS CONC ERROR“: (only possible if the response factor is not 1). This tells you that the
product (response factor * span gas concentration) is not within the permitted range for span
gas. Confirm with
. This brings you back into the main menu. Check the input for reference
factor and gas concentration and accordingly use a test gas with suitable concentration for
recalibration.
b) Display: „CALIBR. FAILED“:
Calibration failed, because the calculated plateau signal is too low. Confirm with
-button. This
brings you back into the main menu. Check the values for response factor and gas concentration.
Repeat the calibration with a test gas with higher concentration or replace the sensor.
c) Display „DONE“:
The calibration was successful. After 2 s the display changes.
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Statox 502 Control Module
11. The display will now show the actual measured value with unit.
!
In order to avoid unrequested alarms make sure the signal created by the test gas has
dropped below the alarm threshold prior to returning into the measuring mode.
12. Confirm with
to return to the main menu.
13. Return into the measuring mode by pushing Reset.
!
If the calibration has not been completed successfully (ERROR 8, CALIBR. FAILED or GAS
CONC ERROR), the module will continue with the most recent valid data. The display shows
alternating „CALIB. FAILED“ and the measured value. A new calibration should be done as
soon as possible.
Reading the bridge voltage
Active in the programs for Statox 501 HRC, ARE, LCIR, MCIR, PID sensor heads.
The current bridge voltage of the sensor can be displayed.
MEASURING MODE
+
R
BRIDGE
VOLTAGE
Change Menu item
R
(-) xxx
mV
Actual bridge voltage,
no Time-Out
Figure 14: Bridge voltage menu diagram
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Statox 502 Control Module
1. In the menu „BRIDGE VOLTAGE“ push
.
2. The actual bridge voltage is displayed.
!
During this procedure the automatic Time-out is not active.
3. Push Reset to return to the main menu and again to return to measuring mode.
Switching the sensor power supply off
This menu is active for Statox 501 HRC, ARE, LCIR, MCIR, PID sensor head programs. It disconnects the
sensor head for service purposes.
MEASURING MODE
Change Menu item
Change status
Sensor head power supply is off,
display is flashing
Sensor head power up
Figure 15: Diagram sensor head deactivation
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Statox 502 Control Module
1. Enter the menu „SENSOR POWER“ by pushing
.
2. Display „SENSOR ON“.
!
Up to step 7 the automatic Time-out is not active.
3. Change the status of the sensor head power supply with ◄- or ►.
4. Confirm with Enter.
5.
„SENSOR OFF“ flashing tells you that the sensor head power supply is off.
6. Push
to switch the power supply on again.
7. „SENSOR ON“ tells you that the sensor head power supply is on.
8. Push Reset to return to the main menu and again to return to measuring mode.
Programming the alarm relays
In this menu you can set parameters of the alarm relays A1 and A2:
1. Alarm thresholds
2. High or low alarm
3. Latching (HOLD) or non-latching (AUTO RESET)
4. Coil active (ACTIVE) or non-active (PASSIVE)
If an alarm threshold is exceeded, the LEDs A1 and A2 are on, and the relays switch. Alarms can be reset,
provided the reason for the alarm has disappeared. If the alarms have been programmed to be latching, you
have to push reset button or use the external reset to delete the alarm message. For additional information
see chapter 4.5.1.
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Statox 502 Control Module
MEASURING MODE
Figure 16: Control Module - alarm relays setting
1. Enter the menu „ALARM 1 RELAY“ or „ALARM 2 RELAY“ by pushing
.
The procedure is identical for both relays.
!
With the next alarm the new settings will be effective.
2. Program the alarm threshold with ◄- or ►. Push and hold ◄- or ► button for speed mode.
3. Confirm with Enter.
4. Select an alarm type with ◄- or ►.
5. Confirm with Enter.
6. Select a Reset-setting (latching or non-latching) with ◄- or ►.
7. Confirm with Enter.
8. Select a relay setting with ◄- or ►.
9. Confirm with Enter.
10. Display „DONE“ for 2 seconds.
11. The program returns automatically to the main menu.
12. Push Reset to return to the measuring mode.
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Statox 502 Control Module
Statox 502 in Common Alarm Module Operation
The ex-works setting of the Statox 502 is Control Module mode. See chapter 8.3 for changing to Common
Alarm mode.
After being connected to power, the Statox 502 performs a self-test. Then the display shows the actual
firmware code. As far as there is no alarm signal on the bus, the display shows „COMMON OK“.
Power ON
Actual firmware version is
displayed for 3 s
Figure 17: Start procedure in Common Alarm mode
When operating in common alarm mode, the module monitors the status of up to 25 control modules
connected to the bus. As soon as one control module generates an alarm, the common alarm modules LEDs,
relays, LCD and analog output go into the alarm status.
Alarm on
Bus
Status
Analog
output
Normal
4 mA
A1
Alarm 1
12 mA
A2
Alarm 2
16 mA
SF
System failure
0 mA
Service Mode
2 or 4 mA
Display
COMMON
OK
COMMON
ALARM 1
COMMON
ALARM 2
COMMON
FAILURE
(main menu)
If several alarms occur at the same time, the priority is:
Service Mode > A2 > A1 > SF
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Statox 502 Control Module
Example:
On the bus are 3 control modules and 1 common alarm module. The first control module is in alarm 1 status,
the second control module is in alarm 2 status, and the third control module submits system failure. All LEDs
and relays on the common alarm module will be activated, the analog output will generate 16 mA, and the
display will show „COMMON ALARM 2“.
Alarm relays configuration
In the menu you can set the parameters of alarm relays A1 and A2:
1. Latching (HOLD) or non-latching (AUTO RESET)
2. Coil active (ACTIVE) or passive (PASSIVE) in case of an alarm.
As long as an alarm is submitted via bus, the relevant LEDs are on and the corresponding relays are switched.
If an alarm threshold is exceeded, the LEDs A1 and A2 are on, and the relays switch. Alarms can be reset,
provided the reason for the alarm has disappeared. If the alarms have been programmed to be latching, you
have to push reset button or use the external reset to delete the alarm message. For additional information
see chapter 4.5.1.
MEASURING MODE
Figure 18: Common Alarm Module - alarm relays setting
Issue 1/2015
Page 25 of 40
Statox 502 Control Module
1. Enter the menu „ALARM 1 RELAY“ or „ALARM 2 RELAY“ by pushing the
-button.
The procedure is identical for both relays.
!
With the next alarm the new settings will be effective.
2. Select a Reset-setting (latching or non-latching) with ◄- or ►.
3. Confirm with Enter.
4. Select the relay setting with ◄- or ►.
5. Confirm with Enter.
6. Display: „DONE“ for 2 seconds.
7. The module returns now automatically into the main menu.
8. Push the reset button to return to the measuring mode.
Common menu items of the Statox 502
Functional test
This test can be performed in any operation mode (Control Module or Common Alarm Module). It tests the
proper function of the LEDs, relays, analog output and bus.
!
Page 26 of 40
Take care not to generate an alarm on peripheral devices unintendedly!
Issue 1/2015
Statox 502 Control Module
MEASURING MODE
Change Menu item
LED A1 flashes, Relay A1 switches, alarm report A1 to bus
LED A2 flashes, Relay A2 switches, alarm report A2 to bus
LED S flashes, Relay SF switches, alarm report SF to bus
0 mA between Pin 3 and 4
2 mA between Pin 3 and 4
.
.
.
.
.
.
.
22 mA between Pin 3 and 4
Figure 19: Diagram functional test
1. Enter the menu „OUTPUT TEST“ by pushing
.
2. Always push
to continue with the next submenu.
3. With the last
you will return to the main menu.
4. Push RESET to return to the measuring mode.
Issue 1/2015
Page 27 of 40
Statox 502 Control Module
Current output in Service Mode
You can select which current the analog output generates in the service mode. The ex – works setting is
2 mA. The selected output current is conserved independent from selected program or operation mode.
!
If you operate the module as a SIL device EN 50402 or IEC 61508, 2 mA in service mode are
mandatory.
MEASURING MODE
Change Menu item
Selection of current value
Figure 20: Diagram service output
1. Push
to enter the „SERVICE OUTPUT“ menu.
2. The actual setting is shown on the display.
3. Select a new setting with ◄- or ►.
4. Confirm with Enter.
5. Push reset to return to the measuring mode.
Page 28 of 40
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Statox 502 Control Module
Changing the operation mode – Control Module or Common Alarm Module
The ex - works setting of the Statox 502 is Control Module. Please find detailed information for running the
Statox 502 in Control Module mode in chapter 6.
Please find detailed information for running the Statox 502 in Common Alarm mode in chapter 7.
MEASURING MODE
Change Menu item
No change of
operation
mode
Select operation mode
Change of operation mode: start-up
Figure 21: Change of operation mode
1. Push
to enter the „Mode“ menu.
2. Select the desired mode with ◄- or ►.
3. Confirm with Enter.
a) If you have changed the operation mode, the Statox 502 restarts in the new mode.
b) If you have not changed the operation mode, the Statox 502 returns automatically to the main
menu. Push Reset to return to the measuring mode.
Issue 1/2015
Page 29 of 40
Statox 502 Control Module
Connecting the sensor heads
!
The sensor head power supply must be OFF before connecting a sensor head! Short circuits
on the terminals or selection of a wrong program may destroy the sensor head.
Following sensor heads can be operated in voltage mode:
Statox 501 HRC, ARE, LCIR, MCIR and PID for combustible gases, CO2 and VOC.
Together with the two internal resistors of the Statox 502 module the sensor forms a Wheatstone
measurement bridge. A gas concentration-dependent resistor in the sensor leads to a change of the bridge
voltage. This voltage in the mV range is evaluated by the Control Module.
The standard application is 3 wire mode. Beginning with 750 m length of cable Compur recommends to
generally operate in the 5 wire mode. The two additional “sense” lines measure the sensor supply voltage
and compensate for voltage drops due to long cable or extreme temperatures.
Following sensor heads can be operated in current mode (4 - 20 mA transmitter):
Statox 501/S, Statox 501 Infratox and Statox 505.
In transmitter mode the sensor signal is transferred directly to the analog output, according to the selected
program, with 4 mA as the lower end of the measuring range and 20 mA as the end of scale.
The sensor heads Statox 501/S and Statox 505 for toxic gases and oxygen are operated as 4 – 20 mA
transmitters in 2 wire mode. The Statox 505 sensor head can be operated in 3 wire mode, too. This way you
can differentiate between service mode (2 mA) and system failure (0 mA).
The sensor head Statox 501 Infratox for combustible gases and CO2 requires 3 or 4 wires for proper
operation.
The sensor heads Statox 501/S and Statox 505 must be operated in connection with an intrinsically safe
repeater if they are installed in classified area, zone 1 or zone 2. Detailed information regarding the operation
with intrinsically safe repeater can be found in the manuals of the corresponding sensor heads. Connect the
shield of the sensor head cable to the grounding bar. Both, grounding bar and DIN Rail must be grounded.
Page 30 of 40
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Statox 502 Control Module
Sensor head type
Signal
Statox 501 HRC, ARE,
LCIR, MCIR and PID
Statox 501/S,
Statox 505
Voltage in mV:
Non balanced bridge
Current:
4 – 20 mA
Current:
4 – 20 mA
Statox 501 Infratox
*)
Measuring mode
Cable
Voltage mode
3 or 5
Figure 24
Current mode
2 or 3
Figure 22
Current mode
3 or 4*)
Figure 23
one or two ground wires
2 wire mode
3 wire mode (Statox 505)
5
6
7
8
5
6
7
8
9
10
11
12
9
10
11
12
IINP
GND
19 V
IINP
19 V
Figure 22: Connections sensor heads Statox 501/S and Statox 505
9
10
11
12
IINP
24 V
GND
Figure 23: Connections sensor heads Statox 501 Infratox
3 wire mode
5 wire mode
5
6
7
8
5
6
7
8
9
10
11
12
9
10
11
12
5 4 3
1
2
5 o. 4
3
1 o. 2
Figure 24: Connections sensor heads Statox 501 HRC, ARE, LCIR, MCIR and PID
Issue 1/2015
Page 31 of 40
Statox 502 Control Module
Status- and error messages
In case the display stays dark, check the polarity and the voltage of the power supply. The internal fuse may
be damaged.
!
Replacement of the fuse by Compur service personnel only!
Status messages
Information
First line
Actual program
P
R
Second line
O
G
R
A
Password entry
C
O
D
E
Wrong password
C
O
D
E
M
x
0
0
0
0
I
N
V
A
L
I
R
O
G
R
A
M
C
H
O
O
S
Settings saved
S
T
O
R
E
Menu relays settings alarm 1
A
L
A
R
M
1
R
E
L
A
Y
Menu relays settings alarm 2
A
L
A
R
M
2
R
E
L
A
Y
High alarm
H
I
G
H
A
L
A
R
M
Low alarm
L
O
W
A
L
A
R
M
Reset – automatic alarm reset
A
U
T
O
R
E
S
E
T
Reset – latching alarm
H
O
L
D
A
C
T
I
V
E
A
S
S
I
V
E
D
O
N
E
P
O
W
E
R
O
N
O
F
F
Relays passive at alarm
P
Procedure finished, settings saved
Menu sensor head power supply
S
E
N
S
O
R
Sensor head power on
S
E
N
S
O
R
Sensor head power off
S
E
N
S
O
R
Calibration routine
C
A
L
I
B
.
Zeroing
Z
E
R
O
Apply span gas
G
A
S
Measurement during calibration
G
A
S
C
A
L
I
B
.
A
S
C
O
N
Enter response factor
F
A
C
T
O
R
Signal too low
C
A
L
I
B
R
Menu bridge voltage
B
R
I
D
G
E
Alarm 1 test
A
L
A
R
M
Plateau found
Enter span gas concentration
Page 32 of 40
G
P
x
Menu program selection
Relays active at alarm
E
x
R
O
U
T
I
N
E
A
D
J
U
S
T
M
(Value)
F
C
N
(Unit)
I
S
(Value)
.
V
1
I
D
H
E
D
(Unit)
x
.
y
y
F
A
I
L
E
D
O
L
T
A
G
E
T
E
S
T
Issue 1/2015
Statox 502 Control Module
Information
First line
Second line
A
L
A
R
L
A
R
M
x
x
m
A
O
U
T
P
U
E
R
V
I
C
M
O
D
E
O
N
T
R
O
L
Common alarm module mode
C
O
M
M
O
Common alarm, Alarm 1 or 2
C
O
M
M
No common alarms
C
O
M
Common alarm, System failure
C
O
Zero found – apply span gas
A
Alarm 2 test
System failure test
A
Current output test (0 – 22 mA)
Menu functional test
4 - 20 mA Sensor head in the service mode
S
Menu operation mode
Control module mode
C
M
2
T
E
S
T
F
T
E
S
T
T
E
S
T
T
T
E
S
T
E
M
O
D
E
M
O
D
U
L
N
A
L
A
R
M
O
N
A
L
A
R
M
X
M
O
N
O
K
M
M
O
N
U
R
E
P
P
L
Y
G
A
T
S
F
A
I
L
S
P
A
N
E
Setting current for service mode
S
E
R
V
I
C
E
O
U
T
P
U
Actual firmware version
V
E
R
S
I
O
N
-
x
.
y
-
P
L
E
A
S
E
W
A
I
T
.
.
2 mA current in the service mode
2
m
A
4 mA current in the service mode
4
m
A
U
N
O
T
A
C
T
I
V
E
P
R
O
G
x
x
x
0
0
C
O
N
C
E
R
R
O
R
A
I
L
E
D
m
V
Start measuring mode
This menu is not active in the current mode
M
E
N
Program selection
S
E
L
0
Zeroing in process
Span gas concentration out of range
(Alternating with measuring value)
Using old calibration value
Actual bridge voltage
G
A
S
C
A
L
I
B
.
x
x
x
x
(-)
F
S
.
Error messages
Many internal and external functions of Statox 502 are monitored for proper function. It can differentiate
between critical and non - critical malfunctions. While critical errors always set the output current to zero,
activate the system failure alarm relay and the LED „S“. Non - critical errors (such as operating errors during
calibration, e.g. ERROR 6-8) have no impact on the status of the module.
!
Issue 1/2015
If an error message occurs which is not described here, please contact your Compur service
partner immediately.
Page 33 of 40
Statox 502 Control Module
Display
ERROR 1
ERROR 2
Nature Description
Short circuit in the sensor head
Critical
cable (in voltage mode)
Cable interruption
Critical
(in current mode)
ERROR 3
Critical
Cable too long
(only in voltage mode)
ERROR 4
Critical
Sensor power supply voltage
cannot be controlled.
ERROR 5
Critical
Cable interruption
(only in voltage mode)
ERROR 6
Non
critical
Zero not found during time limit
ERROR 7
Non
critical
Zero shift out of specifications.
ERROR 8
Non
critical
Sensor sensitivity too low.
No gas found during calibration.
ERROR 10
ERROR 11
ERROR 12
Critical
Critical
Critical
EEPROM writing error
EEPROM checksum error
EEPROM reading error
GAS
CONC
ERROR
Non
Critical
The result of
gas concentration x response factor
is out of range.
The result of
CALIBR.
FAILED
Non
Critical
sensor signal
gas concentration × response factor
is too low.
OFF
Page 34 of 40
Critical
Short circuit during ERROR 2
Measures
Check wiring and connections.
Push Enter button.
Check wiring and connections.
Automatic reset after error correction.
Check wiring and connections.
Check selected program.
Connect sensor head and push Enter button.
Eventually change to 5 wire installation.
Push the Enter button. If error persists
contact your Compur service partner.
Check the sensor head power supply,
connection and voltage.
Connect sensor head and push Enter button.
Check connections.
If gas is present use zero gas.
Push the Enter button and try again.
The old zero value remains valid.
Check if gas is present.
Push the Enter button and try again.
The old zero value remains valid.
Eventually replace the sensor.
Check if gas is on and gas adapter tightly
connected. Push ENTER and try again.
The old gain value remains valid.
Eventually replace the sensor.
Contact your Compur service partner
Contact your Compur service partner
Contact your Compur service partner
Check gas concentration and response factor
entry. Eventually select another span gas
concentration.
Push the Enter button and try again.
The old gain value remains valid.
Eventually replace the sensor.
Check gas concentration and response factor
entry. Eventually select higher span gas
concentration.
Push the Enter button and try again.
The old gain value remains valid.
Eventually replace the sensor.
Check connections and wiring.
Push the Enter button.
Issue 1/2015
Statox 502 Control Module
Control Module - Status diagram
Input from Sensor
or transmitter
4-20 mA or
bridge voltage
4-20 mA or
bridge voltage
4-20 mA or
bridge voltage
22 mA or
mV over range
0 mA or
Error status
2 mA or
Service Mode
System
Current
Bus
Status
output
signal
Normal
4 – 20 mA
Alarm 1
LEDs
Relays
Display
A1
A2
S
ON
A1 1)
A2 1)
SF
---
Measuring value OFF
OFF
OFF
ON
active
active
active
4 - 20 mA
A1
Measuring value ON
OFF 2)
OFF
ON passive active 2) active
Alarm 2
4 - 20 mA
A2
Measuring value OFF 2)
ON
OFF
ON active 2) passive active
Over Range
22 mA
2)
Full scale
flashing
2)
2)
OFF
ON
2)
System failure
0 mA
SF
Error code
OFF
OFF
ON
ON
active
active passive
Service
Mode 3)
2 mA 1)
---
SERVICE MODE
or menu
OFF
OFF flashing ON
active
active
2)
active
active
1) Ex-works setting, can be changed by user.
2) Depending on actual alarm status.
3) Priority ranking: Service Mode > SF > (A1 / A2 / Over range)
Common Alarm Module - Status diagram
Bus
input
System
status
Current
output
---
Normal
4 mA
A1
Alarm 1
12 mA
A2
Alarm 2
16 mA
SF
System
failure
0 mA
---
Service
4)
2 mA
1)
Display
COMMON
OK
COMMON
ALARM 1
COMMON
ALARM 2
COMMON
FAILURE
Menu
A1
LEDs
A2
Relays 4)
A2 1)
SF
OFF
active
active
active
ON
passive
active
active
OFF
ON
active
passive
active
OFF
ON
ON
active
active
passive
OFF
flashing
ON
active
active
active
4)
S
ON
A1
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
1)
1) Ex-works setting, can be changed by user.
4) The listed LED and relay status describes an isolated alarm event. In case of multiple alarm events
combinations are possible.
The priority ranking for display and current output is: Service Mode > A2 > A1 > SF
Issue 1/2015
Page 35 of 40
Statox 502 Control Module
Maintenance
Perform periodically visual checks for damage and soiling. Check the cable connections for tightness on a
regular schedule.
Take the modules for cleaning out of service! Use a slightly wet cloth. No sharp cleaning agents, solvents,
and steam jet are allowed!
Maintenance procedures for sensor heads connected to the module are described in the relevant sensor
head manuals. Calibrate the sensors at regular intervals.
Accessories
Description
Statox 502 bus adapter set for 1 module
Statox 502 connection set for bus adapter
Statox 502 cabinet 400 x 300 x 150 mm LxWxD
Article number
557002
557003
557010
Functional Safety
When the Statox 502 Control Module is used in combination with a Statox 501 ARE or Statox 501 HRC Sensor
Head, the whole line has a SIL 2 - capability according IEC 61508. The relevant data have been verified by a
FMEDA hardware assessment done by EXIDA.
Detailed information is given in the „Functional Safety Document Statox 502“ which is available on request.
Page 36 of 40
Issue 1/2015
Statox 502 Control Module
Technical Data
Product name:
Statox 502 Control Module
Manufacturer:
COMPUR Monitors GmbH & Co. KG, D-81539 Munich
Power supply:
24 ± 2 VDC max. 200 mA
Power consumption:
max. 5 W
Current rating:
max. 8 A on communication bus
Operating temperature:
-10° C to +60° C (14°F to 140°F)
Storage temperature:
-30°C to +60°C (-22°F to 140°F)
Pressure:
900 to 1100 hPa
Humidity:
0% to 99% r. H. (non condensing)
Display:
2 Lines, 16 Segments
Housing:
Polyamide, protection class IP 20
Connections:
24 terminals, can take cable diameters up to 2.5 mm2
Relays:
2 x Alarm
1 x System failure
Relays contact:
250 VAC, 8A
Min. burdon ≥ 12V, 10 mA (contact material: silver-nickel 90/10)
System failure relay:
In normal operation active (coil active), make contact (NO) is closed
Analog output:
0 mA in case of system failure
2 or 4 mA in service mode, programmable
4 - 20 mA in measuring mode, tolerance ± 2 % at -10°C to + 50°C
22 mA at over range
Max. Burdon:
700 Ohm
Installation:
35 mm DIN-Rail
CE-Marking:
EN 61326-1:2013
Functional safety:
SIL 2 capability according to IEC 61508 in combination with
Statox 501 ARE or HRC sensor head
260 g
Dimensions (H x W x D):
45 x 103 x 115 mm (1.77 x 4.06 x 4.52 “)
103 mm
4.06 “
Weight:
Issue 1/2015
45 mm
1.77 “
Page 37 of 40
Statox 502 Control Module
Declaration of conformity
Page 38 of 40
Issue 1/2015
Statox 502 Control Module
Issue 1/2015
Page 39 of 40
Statox 502 Control Module
Specifications are subject to change without notice, and are provided only for comparison of products.
The conditions, under which our products are used, are beyond our control. Therefore, the user must
fully test our products and/or information to determine suitability for any intended use, application,
condition or situation. All information is given without warranty or guarantee. Compur Monitors disclaims
any liability, negligence or otherwise, incurred in connection with the use of the products and
information. Any statement or recommendation not contained herein is unauthorized and shall not bind
Compur Monitors. Nothing herein shall be construed as a recommendation to use any product in conflict
with patents covering any material or device or its use. No license is implied or in fact granted under the
claims of any patent. Instruments are manufactured by Compur Monitors GmbH & Co. KG, Munich.
The General Conditions of Supply and Service of Compur Monitors GmbH & Co. KG are applicable.
Compur Monitors GmbH & Co. KG
Weissenseestrasse 101
D-81539 München
Phone: +49 (0) 89 62038 268
Fax: +49 (0) 89 62038 184
Internet: www.compur.com
E-Mail: compur@compur.de
5378 000 997 07 00
Page 40 of 40
557008
Issue 1 / 2015