Maintenance and Inspection
Alarm Code
(Alarm/warning History)
Status When Lit
Cause
Remedy
"10"
Overcurrent
Lit at power ON
Circuit board (1PWB) defective
Replace SERVOPACK.
Lit at power ON and servo ON
Current feedback circuit or power
transistor defective.
Dynamic brake circuit defective.
Replace SERVOPACK.
"11"
Ground
At main circuit power supply
ON
Servomotor or wiring grounded.
Replace the Servomotor and
correct Servomotor wiring.
Main circuit grounded.
Replace SERVOPACK.
"40"
Overvoltage
Lit with normal running or de-
celeration
GD2 load too large.
Check the load inertia for the
moment of inertia on the motor
shaft.
Circuit board (1PWB) defective.
Replace SERVOPACK.
"41"
Insufficient Voltage
During Servomotor driving
Power supply voltage not within
specifications.
Check the power supply.
Rectifier diode malfunctioned.
Fuse blown.
Rush current limit resistor blown.
Circuit board (1PWB) defective.
Replace SERVOPACK.
"51"
Overspeed
Lit with high-speed Servomo-
for rotation after reference
input
Servomotor wiring incorrect.
Encoder wiring incorrect.
• Check and correct wiring.
• Check to see if the Phase-A,
-B and -C pulses are correct
at 2CN, and repair (discon-
nection, short, no power
supply, detective circuit
board) if necessary.
12.2.2 SERVOPACKS
12.2.2 SERVOPACKS
■
Troubleshooting Using MECHATROLINK Communication Data
Table 12.6
shows examples o f troubleshooting problems w i t h M E C H AT R O L I N K commu-
nication data (alarm code).
Table 12.6 Troubleshooting with MECHATROLINK Communication Data
12 -6