GE VersaPoint IC220PB001, User Manual

Page: 83 / 202

GFK-1911B Chapter 6 Diagnostics 6-3
6
Possible LED combinations
No. UM US BF FS FN Error Remedy
1 ) Voltage supply U
M
and U
S
absent
Check voltage supply U
M
and
U
S
2) Voltage supply U
M
absent Check voltage supply U
M
3) Voltage supply U
S
absent Check voltage supply U
S
4) No error, everything OK
5) No communication on
Profibus
Correct Profibus address
on the NIU
Correct Profibus master
settings
Remove Profibus cable
fault
6) Number of pulses on FN
indicates the type of error See the table that follows.
7) Number of pulses on FN
indicates the error number See the table that follows.
8) Outputting failsafe values
(IC670PBI002 only) Switch master to Run state,
check communication with
master.
Set “data exchange mode”
parameter on the NIU to “data
exchange without operate”
Key: LED OFF LED flashing LED ON