Inverter Alarms; Detecting Inverter Alarms; Reading The Alarm Code; Alarm Codes - Omron 3G3MV-PDRT2 User Manual

Communications Errors
8-5

Inverter Alarms

Detecting Inverter Alarms

■
The Inverter's alarm codes are not specified in DeviceNet, they are a proprietary function of these
products. When an alarm occurs, the status will change as described below.
Function
Remote I/O
Explicit messages

Reading the Alarm Code

■
The following methods can be used to read the Inverter's alarm code.
Function
Inverter's Operator dis-
play
Explicit messages

Alarm Codes

■
The following table lists the alarm codes. Refer to the Maintenance Operation Chapter of your
Inverter User's Manual for more details on troubleshooting and correcting alarms (also known as
warnings and non-fatal faults).
● 3G3MV Alarm Codes
Alarm code (hex) Operator display
0000 ---
8000 STP (flashing)
8001 SER (flashing)
8002 EF (flashing)
8003 BB (flashing)
8004 OL3 (flashing)
8005 OH (flashing)
8006 OV (flashing)
8007 UV (flashing)
8008 FAN (flashing)
8009 CE (flashing)
800A BUS (flashing)
800C OH3 (flashing)
800D FBL (flashing)
800E STP (flashing)
8-12
The alarm output allocated in the remote I/O will turn ON.
If necessary, we recommend programming a sequence to handle the alarm (such as
stopping the Inverter) when the alarm output goes ON.
Read the alarm output for Class 29, Instance 1, Attribute 0B using message commu-
nications. We recommend programming a stop sequence (such as turning OFF all
related inputs controlling the Inverter) when an alarm occurs in the Inverter.
When the Inverter is in alarm status, the relevant information will be displayed (flash-
ing) on the Inverter's Digital Operator.
The alarm code of an alarm that is currently occurring can be read with message
communications.
DeviceNet Communications Unit/Card alarm code: Class 2A, Instance 1, Attribute 6F
No Inverter alarm detected
Operator stopped
Sequence error
External terminal fault
Baseblock input
Overtorque 1
Cooling fins overheating
Main circuit overvoltage
Main circuit undervoltage
Cooling fan fault
Communications timeout
Option transfer error
Motor overheating
Feedback loss error
Emergency stop
Inverter alarm status
Inverter alarm status
Meaning
Chapter 8