C Ount Operations D O N Ot Execute - LG MASTER-K Series User Manual

Chapter 8. TROUBLESHOOTING
8.2.2 Counter Operations D o N o t Execute.
Counter operations do not
execute.
Is the voltage of
power supply
module Normal?
Yes
Is the Phase A
LED flickering?
Yes
Is turned the
counter operation
enable signal On?
Yes
Is input/output signal
allocation?
Yes
Is 2-Phase
operating mode?
①
No
Is Slot No. correctly
set?
Yes
Entered any foreign
material when
handling?
No
HW Fault
No
No
Is external
wiring?
normal ?
No
Correct after checking
external wiring
No
No
Correct program as normal in/output
Yes
No
Correct program to set correct
Yes
Remove the foreign material.
8 - 3
Change after checking power
module?
①
When voltage
given on
Yes
counter input
terminal, is A,B
phase ?
Yes
Correct program to turn on the count
operation enables signal.
signal
Phase B LED
flickering?
Yes
Slot No
No
HW Fault
No