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Dear All Mark V expert,
Currently we have trouble with our mark V system. We have Mark V simplex. Turbine trip because TCDA card core <R> reset with diagnostic alarm ID OBJ #4 reset. All input go to alarm state. From DCC/LCC LCD found that after unit trip TCDA state change continously from A2 to A7.
We have checked JP voltage (supply from TCPS) and not found any problem. Checking result for IONET voltage for cable connection integrity also found no problem.
We have replace TCDA core <R> and TCPS core <R> with our spare but the problem not solve yet.
Jumper setting for IONET termination resistor are IN for TCEA and TCDA.
We have check AC ripple at DTBA and DTBB and found the AC voltage varies from 2 - 9 Vac.
Any help appreciated...
Currently we have trouble with our mark V system. We have Mark V simplex. Turbine trip because TCDA card core <R> reset with diagnostic alarm ID OBJ #4 reset. All input go to alarm state. From DCC/LCC LCD found that after unit trip TCDA state change continously from A2 to A7.
We have checked JP voltage (supply from TCPS) and not found any problem. Checking result for IONET voltage for cable connection integrity also found no problem.
We have replace TCDA core <R> and TCPS core <R> with our spare but the problem not solve yet.
Jumper setting for IONET termination resistor are IN for TCEA and TCDA.
We have check AC ripple at DTBA and DTBB and found the AC voltage varies from 2 - 9 Vac.
Any help appreciated...