C-DIAS SAFETY DIGITAL INPUT MODULE
CSDI 162
1.3
Page 23
a) During restart, the Safety input first runs the POST (Power On Self Test). In the
POST, whether the Safety input is configured or not is determined. If the Flash
memory in the Safety input is empty, it changes to the service mode and switches
the status LED (ST) to continuously on.
b) If the Flash memory of the Safety input contains a configuration, it goes into the
idle / Check Configuration Mode. The transition into the OP mode occurs so fast
that the blinking of the ST LED is not seen.
c) A change to the error status can also occur from the POST and (Temp.) OP.
mode if other (internal) errors are detected or errors in remote modules occur. The
analysis of these errors however, requires the use of the SafetyDesigner.
Troubleshooting
•
Check all modules in the system for completeness and type conformity
•
Check that all modules are error-free
•
Check all connector cables
•
Cancel the error with the QUIT_ERROR command
If the Safety input module remains in the error status after the QUIT_ERROR command
has been executed, it must be retested using the SafetyDesigner.
Troubleshooting with the SafetyDesigner
Connect the SafetyDesigner
Debug the system using the SafetyDesigner.
Correcting a wiring error
When a wiring error is determined, a controlled deactivation of the system is re-
quired, which must then be turned off.
The system can only be rewired when no power is applied.
