Error indication
Possible cause
Action
Display output: Corrupt
Parameters: Reset
Memory
Inconsistent data detected in parameter memory 1
Press Enter.
A system restart is carried out. This resets
the parameters to the factory settings.
2
If necessary, reconfigure the parameters.
If the error message appears again:
3
Exchange the evaluation unit.
4
Contact SICK Service.
10.4.1
Communication fault between evaluation unit and receiver
Error message: "Sensor Communication"
The receiver sends data continually to the evaluation unit, an error message is gener‐
ated automatically when no data is received there.
Check following connections:
1
Evaluation unit -> receiver.
2
Cable connection on the plug-in terminal in the evaluation unit.
3
Cable to receiver.
4
Outer plug-in connector on receiver.
5
Inner plug-in connector in receiver.
10.5
Ex operation malfunction
An Ex control device malfunction causes an alarm signal to be displayed for the GM700
Ex Category 3G. There is no automatic switch-off.
Possible cause
Action
Protective gas feed interrupted
Check protective gas feed
Enclosure of sender/receiver unit or enclosure
of evaluation unit is leaky
Check screw fittings and seals
NOTE
Clearing pressurized enclosure malfunctions, see Manual FS840 and purge medium
valve.
10.6
Error messages
10.6.1
Error messages
WARNING
Risk of explosion
Some of the work described in this Chapter assumes an Ex free zone.
b
Wait 20 minutes after switching off the main power supply before opening the enclosure.
Table 22: Error Table: Malfunction message
Error message
Description
Possible cause/clearance
System
DSP: BOOT ERROR
DSP…Digital Signal
Processor
Error during start process
b
X
Observe safety information for Ex-free zone!
b
Restart device.
–
Press maint button to activate mainte‐
nance.
–
Trigger menu Reset System or
–
switch device off and on again.
b
If not successful, contact Service.
10
TROUBLESHOOTING
82
O P E R A T I N G I N S T R U C T I O N S | GM700 Ex
8019532/100Q/V1-1/2018-08 | SICK
Subject to change without notice