YASKAWA MP23 Series User Manual

10.5 Inverter Alarm and Warning Codes
10.5.1 Inverter Alarms
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10.5 Inverter Alarm and Warning Codes
Errors are classified by the following four types, according to where the error occurred and the error contents.
* SI-T refers to the MECHATROLINK option board.
 When more than one error is detected at one time, the SI-T will report the alarms in order from the smallest alarm
code number.
 When another error is detected while another is being detected, the alarm code will not be refreshed.
 When more than one minor failure (warning) is detected at one time, the SI-T will report alarms in order from the
smallest warning code number.
Inverter alarms and warnings are described below.
10.5.1 Inverter Alarms
Error Type Contents
Place the Error
Occurred
Alarm
Inverter Alarm Serious failure that can damage the inverter and machine Inverter
Communication Alarm MECHATROLINK communication failure
SI-T
*
Warning
Inverter Warning
Incorrect operation or minor failure that will not likely
result in a serious situation.
Inverter
Communication Warning MECHATROLINK communication error warning
SI-T
*
Alarm Code
(IW
30)
Status (IW
10)
Digital
Operator
Display
Contents
Varispeed G7
Varispeed F7
VSminiV7
WARNG ALM
01H − ON PUF Blown fuse
 ×
02H − ON UV1 Main circuit undervoltage

03H − ON UV2 Control circuit undervoltage

04H − ON UV3 MC failure
 ×
06H − ON GF Ground fault


*1
07H − ON OC Overcurrent

08H − ON OV Overvoltage

09H − ON OH Inverter overheat

0AH − ON OH1 Inverter overheat
 ×
0BH − ON OL1 Motor overload

0CH − ON OL2 Inverter overload

0DH − ON OL3 Overtorque 1

0EH − ON OL4 Overtorque 2
 ×
0FH − ON RR Control transistor fault
 ×
10H − ON RH Braking resistor overheat


*1
11H − ON EF3 External fault 3

12H − ON EF4 External fault 4

13H − ON EF5 External fault 5

14H − ON EF6 External fault 6

15H − ON EF7 External fault 7

16H − ON EF8 External fault 8
 ×
18H − ON OS Excessive Speed
 ×
19H − ON DEV Excessive speed deviation
 ×
1AH − ON PGO PG disconnected
 ×
1BH − ON PF Input open phase

1CH − ON LF Output open phase

1DH − ON OH3 Motor overheat 1
 ×
1EH − ON OPR Operator disconnected

1FH − ON ERR EEPROM writing error
 ×

YASKAWA MP23 Series Specifications

General

Brand	YASKAWA
Model	MP23 Series
Category	Controller
Language	English