YASKAWA NX100 - Page 137

8.3 Alarm Message List
8-33
1538 INCR ENCODER
INIT PULSE ERR
(SV2)
--- Initial pulse of incremental encod-
ers is incorrect.
• Turn the power OFF then back ON.
• Correct the encoder connection.
• Check for noise.
• Replace the SERVOPACK.
1539 SERVO ON
COMMAND
INVALID
--- The servo on command was input
when the servo on command
invalid alarm was output.
• Turn the power OFF then back ON.
1540 VIBRATION
DETECT(SERVO
2)
--- An abnormal vibration was
detected during motor rotation.
• Turn the power OFF then back ON.
• Check the settings for manipulator motion
condition (influence by external force, load
condition).
1541 FULL CLOSE
SERIAL
ENCODER SUM
CHECK ERROR
(SV2)
--- The check sum result of the
encoder memory is incorrect.
• Turn the power OFF then back ON.
• Replace the serial conversion unit.
• Replace the SERVOPACK.
1542 FULL CLOSE
SERIAL
ENCODER DATA
ALARM
(SERVO2)
--- Serial encoder internal parameter
error occurred.
• Turn the power OFF then back ON.
• Replace the serial conversion unit.
• Replace the SERVOPACK.
1544 FULL CLOSE
SERIAL
ENCODER
SCALE ERROR
(SERVO2)
--- The linear encoder or the serial
converter unit is damaged.
• Turn the power OFF then back ON.
• Replace the serial conversion unit.
• Replace the linear encoder.
1545 FULL CLOSE
SERIAL CON-
VERTER UNIT
COMMUNICA-
TION ERROR
--- Full close serial converter unit com-
munication error occurred.
• Turn the power OFF then back ON.
• Check the wiring around the cable between
the serial conversion unit and SERVO-
PACK.
• Check for noise.
• Review the cable between the serial con-
version unit and SERVOPACK.
• Replace the serial conversion unit.
• Replace the SERVOPACK.
1546 COMMUNICA-
TION SET
ERR(ML2)
--- An error was found in the MECHA-
TROLINK communication transmis-
sion frequency.
• Turn the power OFF then back ON.
• Set an appropriate MECHATROLINK trans-
mission frequency.
1547 CURRENT FB
ERROR
--- The motor current value displayed
on the axis data is incorrect (*:
axis).
• Check if a short-circuiting or ground fault
has not occurred in the power cables (U-,
V-, and W-phases) or motor.
1550 PALAMETER
DAMAGED
(SERVO2)
--- The SERVOPACK EEPROM data
is incorrect.
• Turn the power OFF then back ON.
• Replace the SERVOPACK.
1551 PRIMARY CIR-
CUIT DETECT
ERR (SERVO2)
--- The various detection data of the
power circuit in the SERVOPACK is
incorrect.
• Turn the power OFF then back ON.
• Replace the SERVOPACK.
•
1552 PALAMETER
SETTING
ERROR
(SERVO2)
-
-- The parameter setting error or a
failure of SERVOPACK EEPROM
or peripheral circuit is suspected.
• Turn the power OFF then back ON.
• Correct the parameter settings.
• Replace the SERVOPACK.
1553 COMBINATION
SETTEING
ERROR
(SERVO2)
--- The SERVOPACK and motor
capacity match or the SERVO-
PACK board is damaged.
• Turn the power OFF then back ON.
• Correct the SERVOPACK and motor capac-
ities.
• Replace the SERVOPACK.
Alarm Message List
Alarm
Number
Message
Sub
Code
Cause Remedy