90-91
Description Output [ ] 20/200 mA suicide active
Possible Cause
•
Suicide is enabled on analog output.
•
Review any additional diagnostics for possible causes.
•
The TMR_SuicLimit is set too low.
•
Field wiring problem
•
Command is beyond the range of the output.
•
Analog output configuration does not match hardware jumpers.
Solution
•
Verify that the value of TMR_SuicLimit is set correctly.
•
Verify that the value of D/A_ErrLimit is set correctly.
•
Verify the field wiring connections.
•
Verify that the commanded output is within output range.
92-93
Description Output [ ] Suicide on overcurrent, check terminal board jumper
Possible Cause
•
Incorrect setting of terminal board 20/200 mA jumper
•
Hardware failure in I/O pack
Solution
•
Check the terminal board jumper (JPO).
•
Replace the I/O pack.
99
Description I/O pack internal power supply status not OK
Possible Cause The internal power supply that provides analog circuit control power is not operating correctly.
Solution
•
Check the I/O pack ground quality through mounting bolts.
•
Confirm that 28 V input power is within 26.6 - 29.4 V range.
•
Replace the I/O pack.
100
Description Dither Time is frozen or out of range - [ ]
Possible Cause The time signal used to generate a dither on the valve output signal does not appear to being changing.
This could cause a frozen valve.
Solution
•
Cycle power to the I/O pack.
•
Replace the I/O pack.
104
GEH-6855_Vol_II
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
Public Information