ian.smith7
Member
Hi all
At work we have had some problems with SLC500's faulting out on power up, after being isolated for 6 or more hours. To get round this we decided to fit permanent live PLC supplies to a group of 3 control panels containing 5 PLCs between them (all on one ethernet network). Two of the panels containing two PLCs each have been done without any problems.
When the 3rd panel with one SLC500 in it was done we found that when the panel isolator was switched on the PLC would fault out even though it had not been powered down with the isolator.
Details of the PLC are
Slot0 5/05 CPU - 64K. OS501 /C
Slot1 Empty
Slot2 1746-IB32
Slot3 1746-IB32
Slot4 1746-OB32E
Slot5 1746-NI04V
Slot6 Empty
This PLC was NOT one of those that had been faulting out after power down, but it is part of the same system.
Unfortunately I do not have a fault code for the problem but I could recreate the issue to get one.
Has anyone come across this issue before?
any help is very welcome.
cheers
Ian
At work we have had some problems with SLC500's faulting out on power up, after being isolated for 6 or more hours. To get round this we decided to fit permanent live PLC supplies to a group of 3 control panels containing 5 PLCs between them (all on one ethernet network). Two of the panels containing two PLCs each have been done without any problems.
When the 3rd panel with one SLC500 in it was done we found that when the panel isolator was switched on the PLC would fault out even though it had not been powered down with the isolator.
Details of the PLC are
Slot0 5/05 CPU - 64K. OS501 /C
Slot1 Empty
Slot2 1746-IB32
Slot3 1746-IB32
Slot4 1746-OB32E
Slot5 1746-NI04V
Slot6 Empty
This PLC was NOT one of those that had been faulting out after power down, but it is part of the same system.
Unfortunately I do not have a fault code for the problem but I could recreate the issue to get one.
Has anyone come across this issue before?
any help is very welcome.
cheers
Ian