Flow Chart - ABB PS D75 840 Series Installation And Maintenance Instruction

6.1.3

Flow chart

Version PS D without a built in electronic overload
Fault code
F1
Occurs when closing terminal 8 and 9 ( gives the start signal)
No
Occurs when ramping up
No
When reaching top of ramp
No
During cont. run
Yes
No
During ramp down
Yes
No
Faulty P.C.B
Yes
Yes
Yes
The main contactor opens before end of ramp
Is the switch SC on?
No
Yes
High over current ( above set current limit)
No
Check that all three phases are present
Main contactor is closing too late
Check the fuses
The main contactor opens
Fuse blowed when starting up ( too long starting time )
Overload trip and opens the main contactor
Check that the main contactor are closed all the time
Interuptions in the main supply
No faults
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No faults
No faults
No faults