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
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