8.3 Alarm Message List
8-32
1510
EXTERNAL WDT
BREAKDOWN
(SERVO I/O)
---
External WDT breakdown is sent
from the TU circuit board.
• Turn the power OFF then back ON.
If the error occurs again, replace the TU cir-
cuit board.
1511
SERIAL COM-
MUNICATION
TOGGLE CHECK
ERROR
(SERVO I/O)
---
Serial communication toggle check
error is sent from the TU circuit
board.
• Turn the power OFF then back ON.
If the error occurs again, replace the TU cir-
cuit board.
1512
POWER SUP-
PLY FAN ALARM
(SERVO)
---
The rotation speed of in-panel cool-
ing fan decreased.
• Check if in-panel cooling fan is rotating.
If the fan is not working, verify its wiring.
Should the error persist, replace the in-panel
cooling fan (CPS power unit).
1513
POWER
SUPPLY
OVERHEAT
(SERVO)
---
Temperature sensor in the CPS
power unit is activated. The internal
temperature of the controller is
abnormally increased.
• Check for temperature rise in the controller,
and check if in-panel cooling fan is rotating.
Cycle the power when the power supply unit
is cooled off.
1514
OVERHEAT
(AMPLIFIER)
---
Amplifier overheated.
• Turn the power OFF then back ON after
cooling the amplifier.
If the error occurs again, contact your
Yaskawa representative.
1515
SON_OUT
RELAY STICK-
ING
(SERVO)
---
SON_OUT relay sticking is sent
from the TU circuit board.
• Turn the power OFF then back ON.
If the error occurs again, replace the TU
board.
1516
BRRCER RELAY
STICKING
(SERVO I/O)
---
BRRCER relay sticking is sent form
the TU circuit board.
• Turn the power OFF then back ON.
If the error occurs again, replace the TU
board.
1530
ABSOLUTE
DATA
ERROR(SERVO
2)
---
Absolute data cannot be received
from the encoder or the received
absolute data is incorrect.
• Turn the power OFF then back ON.
• Correct the encoder connection.
• Replace the motor and SERVOPACK.
1531
GATE ARRAY 1
ERROR (SERVO
1)
---
Reading error of command input.
• Turn the power OFF then back ON.
• Replace the SERVOPACK.
1532
GATE ARRAY 2
ERROR (SERVO
2)
---
Reading error of command input.
• Turn the power OFF then back ON.
• Replace the SERVOPACK.
1533
ABSOLUTE
ENCODER
ERROR
(SERVO2)
---
The number of pulses per rotation
of the absolute encoder is incorrect.
• Turn the power OFF then back ON.
• Correct the encoder connection.
• Check for noise.
• Replace the SERVOPACK.
1534
EARTH FAULT
(SERVO2)
---
A ground fault along the motor
power line, motor error, or SERVO-
PACK error is suspected.
• Turn the power OFF then back ON.
• Check if a ground fault or interphase short-
circuiting has not occurred in the U-, V-, and
W-phases of motor power line.
• Replace the motor and SERVOPACK.
1535
WATCHDOG
DETECTOR
ERROR
(SERVO2)
---
The SERVOPACK watch dog is
incorrect.
• Turn the power OFF then back ON.
• Replace the SERVOPACK.
1536
CURRENT FB
ERROR(U
PHASE)
(SERVO2)
---
Disconnection of motor power line
or the SERVOPACK U-phase cur-
rent detection circuit error is sus-
pected.
• Turn the power OFF then back ON.
• Check for motor power line.
• Replace the SERVOPACK.
1537
CURRENT FB
ERROR(V
PHASE)
(SERVO2)
---
Disconnection of motor power line
or the SERVOPACK V-phase cur-
rent detection circuit error is sus-
pected.
• Turn the power OFF then back ON.
• Check for motor power line.
• Replace the SERVOPACK.
Alarm Message List
Alarm
Number
Message
Sub
Code
Cause
Remedy
