Motoman PX2750, Manual

Page: 562 / 611

10.3 Alarm Message List
10-35
4208 SYSTEM ERROR
(ARITH)
[Decimal Data] The system error occurred in ARITH. • Reset the alarm and repeat the opera-
tion.
• Turn the power off then back on.
• If the error occurs again, contact you
YASKAWA representative.
4209 OFFLINE SYSTE
ERROR
(ARITH)
[Decimal Data] The system error occurred in ARITH offline. • Reset the alarm and repeat the opera-
tion.
• Turn the power off then back on.
• If the error occurs again, contact you
YASKAWA representative.
4220 SERVO POWER OFF
FOR JOB
[Control Group] The servo power supply was not turned on
for the job group axis which was to be oper-
ated. Intercept the servo power supply once
and turn on the servo power supply to the
group axis to be operated.
4221 SERVO POWER OFF
FOR JOB
[Control Group] The servo power supply was not turned on
for the job group axis which was to be oper-
ated. Intercept the servo power supply once
and turn on the servo power supply to the
group axis to be operated.
4222 SAFE CIRCUIT SIG
NOT SAME
(XCI01)
[Binary Data] The error occurred in the safe circuit signal
(I/O contactor unit). (Check the XCI01 cir-
cuit board duplication signal.) • Check the safe circuit signal wiring of the
cables connected to the I/O contactor
unit.
• Replace the I/O contactor unit.
4223 SAFE CIRCUIT SIG-
NAL NOT SAME
(SV)
[Decimal Data] The error occurred in the safe circuit signal
(I/O contactor unit). (Check the WRCA01
board duplication signal.) • Check the safe circuit signal wiring of the
cables connected to the I/O contactor
unit.
• Replace the I/O contactor unit.
4300 VERIFY ERROR
(SERVO PARAM
TER)
[Decimal Data]] A mistake was found in the paramete
related to servo control. Needs investigation.
Consult a YASKAWA representative.
4301 CONTACTOR
ERROR
[Bit Pattern] • The contactor of the contactor unit was not
turned ON at servo ON.
• While turning servo ON, the signal fro
the contactor was intercepted.
• The contactor signal was not intercepted
at servo OFF (at emergency stop).
• While turning servo OFF (at emergency
stop), the contactor signal was turned ON.
Reasons are as follows:
• Defective contactor unit
• Defective WRCA01 circuit board
• Turn servo ON again after resetting the
alarm.
• If the error occurs again, replace the
contactor unit, WRCA01 circuit board.
4302 BRAKE CIRCUIT
ERROR
[Bit Pattern] • The brake relay signal unit was not turned
ON at servo ON.
• While turning servo ON, the brake relay
signal was intercepted.
• The brake relay signal was not intercepted
at servo OFF (at emergency stop).
• While turning servo OFF (at emergency
stop), the brake relay signal was turned
ON.
Reasons are as follows:
• Defective contactor unit
• Defective WRCA01 circuit board
• Reset the alarm and turn servo ON
again.
• If the error occurs again, replace the
contactor unit, WRCA01 circuit board.
Alarm Message List
Alarm
Number
Message Cause Remedy