Omron M1 Series User Manual page 742

9 Troubleshooting
9-1
Alarm Display and Remedies
9-1-1
Alarm Display
If an error occurs, the inverter shuts off its output ("trip"), turns ON the ERROR LED, and displays an
alarm code. After checking the RUN command and other signals, you can reset the alarm.
Before resetting the alarm, be sure to investigate the cause of the trip and remove the trip factor(s)
according to the displayed alarm code.
This section describes how to deal with troubles that may occur after you start using the inverter.
Fault Monitor Display
Use the Alarm List 1 to 6 (Program Mode
The Alarm List 1 displays information on the latest alarm.
How to Reset a Trip State
The inverter in a trip state can be reset in either of the following two methods.
9-2
Program
Mode
Alarm list
PRG
RESET
) to check the current alarm, as well as the past alarms.
Information on various operations
during alarm occurrence
Item No.
Switching in
approx.
PRG one second
RESET
Item No.
Switching in
approx.
one second
Item No.
Switching in
approx.
one second
Item No.
Switching in
approx.
PRG
one second
RESET
Item No.
Switching in
approx.
one second
Item No.
Switching in
approx.
one second
M1 Series Standard Type User's Manual (I669)
Output frequency
Output current
Fault frequency monitor
Output frequency
Output current
Cumulative running time