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IPC
FEC®
FEC_ FCXX_ HE12 Version 1.2 as of 03.07.2000
Problem
The status of the I/O control LED does not
correspond with the actual output status.
Remedy
Check whether the output device is working
correctly. Check whether the required voltage
is present at the output terminals.
Problem
The operating status of the input device does
not correspond with the status of the I/O con-
trol LEDs for this input.
Remedy
Check that the input device is working correct-
ly, check for loose contacts or other irregulari-
ties.
An input that is switched on or off within a time
period that is shorter than the operating cycle
or the module sampling time may not be detec-
ted.
FC20
FC21
FC22
FC23
FC30
FC34