Troubleshooting By Means Of Operating Status - Omron SMARTSTEP R7D-AP Series User Manual

Troubleshooting
Parameter Unit Alarms
■
Display
OPERATOR ERR ROM error Occurs when power
ROM CHECK ERR
OPERATOR ERR RAM error Occurs during
RAM CHECK ERR
OPERATOR ERR Send oper-
DATA SEND ERR ation error

5-3-2 Troubleshooting by Means of Operating Status

Symptom Probable cause
The power sup- Power supply lines are
ply indicator incorrectly wired.
(POWER) does
not light even
when the power
supply is turned
ON.
5-12
Error Status when error
occurs
supply is turned
ON.
Parameter Unit use.
Occurs during
Parameter Unit use.
Check whether the control-circuit
power supply input and main-cir-
cuit power supply input are within
the power supply voltage ranges.
Check whether the control-circuit
power supply input and main-cir-
cuit power supply input are wired
correctly.
Cause of error
Internal element mal-
function.
Internal element is
faulty.
Internal element mal-
function.
Internal element is
faulty.
Internal element mal-
function.
Internal element is
faulty.
Items to check
Chapter 5
Countermeasures
Turn OFF the power supply,
then ON again.
Replace the Parameter Unit.
Turn OFF the power supply,
then ON again.
Replace the Parameter Unit.
Turn OFF the power supply,
then ON again.
Replace the Parameter Unit.
Countermeasures
Correct the power supply.
Rewire correctly.