Diagnostics 7.
7-1
7.
Diagnostics
7.1
Preliminary checks
Check power supply, ground and I/O cables are wired correctly.
Turn the power supply on. Check the power LED is lit. Down load a small
test program into the PLC using a handheld programmer or MEDOC. Verify
the program to ensure it has been written to the PLC correctly. Using the
programming device force ON/OFF each output. Check the output LEDs for
operation.
Put the PLC into RUN. Check the RUN LED is lit. Check the previously down
loaded program works correctly. Once all check are complete take the PLC
out of run and turn OFF the power supply.
During this testing stage take extrem care not to touch any live or hazardous
parts.
POWER
RUN
BATT
ERROR
POWER
RUN
BATT
ERROR
POWER
RUN
BATT
ERROR
FX2NC Series Programmable Controllers
Summary of Contents for FX2NC DS Series
Page 18: ...FX2NC Series Programmable Controllers Contents xvi ...
Page 20: ...FX2NC Series Programmable Controllers Introduction 1 ...
Page 50: ...FX2NC Series Programmable Controllers Terminal layouts 2 ...
Page 56: ...FX2NC Series Programmable Controllers Installation notes 3 ...
Page 78: ...FX2NC Series Programmable Controllers Installation notes 3 3 22 MEMO ...
Page 80: ...FX2NC Series Programmable Controllers Power supply 4 ...
Page 88: ...FX2NC Series Programmable Controllers Inputs 5 ...
Page 98: ...FX2NC Series Programmable Controllers Outputs 6 ...
Page 110: ...FX2NC Series Programmable Controllers Outputs 6 6 12 MEMO ...
Page 112: ...FX2NC Series Programmable Controllers Diagnostics 7 ...