12.2 Troubleshooting
Alarm Code
(Alarm/warning History)
Status When Lit
Cause
Remedy
"C5"
Initial pulse error
At the SENS-ON or CONFIG
command transfer
Incorrect encoder type setting
Reset the encoder type
Faulty encoder
Replace the encoder.
Faulty control board (1PWB)
Replace the SERVOPACK.
"00"
Absolute encoder data
error
Lit in several seconds after
power ON
• Absolute encoder malfunctioned. Turn power back ON.
Follow the absolute encoder
setup procedures.
• Absolute encoder wiring incor-
rect.
Check
and correct absolute
encoder wiring.
"02"
Broken user constant
Lit at power ON
Circuit board (1PWB) defective.
Replace SERVOPACK.
"94"
User constant setting
warning
Lit at power ON
An user constant was set out of range
via MECHATROLINK communica-
tion or the setting order was incor-
rect.
Set the correct setting and
review the exact setting order.
"95,,
Command warning
At command transfer
The CONNECT command has not
been transferred.
Transfer the CONNECT com-
mand.
At the SV—ON command
transfer
The CONNECT or SENS—ON
command has not been transferred.
Transfer the CONNECT or
SENS—ON command.
Main power supply not turn ON.
Turn ON the main power sup-
ply. (Check the sequence.)
At the synchronous command
(SYNC_SET) transfer
Communication phase 3 has not been
reached.
Establish a sync by CON-
NECT command (normal,
synchronum) or the SYNC—
SET command.
"7A"
Heat sink overheated
Lit during operation
SERVOPACK ambient temperature
exceeds 55°C.
Reduce SERVOPACK ambient
temperature to under 55°C.
Poor
heat sink air circulation.
Follow the mounting proce-
dures and stipulation for sur-
rounding space.
Fan stopped.
Replace SERVOPACK.
Driving above the rated load.
Reduce the load.
At control power supply turn
ON
Control board (1PWB) defective.
Replace SERVOPACK.
"E5"
Synchronization error
At command transfer
WDT
data does not match.
Update the WDT data at each
communication cycle.
"96", "E6"
Communications error
At control power supply turn
ON
Faulty contact between cable and
connector .
Correct the connector wiring.
Malfunction due to noise
Take action to eliminate noise.
"BE"
Hardware error
At control power supply turn
ON
Control board (1PWB) defective.
Replace SERVOPACK.
At main circuit power supply
turn ON
Rectifier diode malfunctioned.
Fuse blown.
Rush current limit resistor blown.
Regenerative transistor
malfunctioned.
At main circuit power supply
turn OFF
Regenerative transistor and regenera-
tive resistor malfunctioned.
Control board (1PWB) defective.
12 -9