YASKAWA E-V Series User Manual page 312

Alarm:
Alarm Name
When setting not to clear position
A.d01:
error pulses, the servomotor
Position Error Pulse
rotated while the servo was OFF,
Overflow Alarm at
resulting in position error pulse
Servo ON
overflow.
The servo was turned ON while
the position error pulses accumu-
A.d02:
lated, and the reference pulse was
input while the servomotor was
Position Error Pulse
running at the speed limit
Overflow Alarm by
(Pn529). As a result, the position
Speed Limit at Servo
error count exceeded the exces-
ON
sive position error alarm level
(Pn520).
A.d30:
The position data exceeded
Position Data
±1879048192.
Overflow
The lag between activations of
A.EB1:
the input signals /HWBB1 and
Safety Function Signal
/HWBB2 for the HWBB function
Input Timing Error
is one second or more.
The three-phase power supply
wiring is incorrect.
A.F10:
The three-phase power supply is
Main Circuit Cable
unbalanced.
Open Phase
A single-phase power is input
(With the main power
without setting Pn00B.2 (power
supply ON, voltage was
supply method for three-phase
low for more than 1 sec-
SERVOPACK) to 1 (single-phase
ond in an R, S, or T
power supply).
phase.)
(Detected when the main
power supply was turned
ON.)
A SERVOPACK fault occurred.
The contact between the digital
operator and the SERVOPACK is
CPF00:
faulty.
Digital Operator
Transmission Error 1
Malfunction caused by noise
interference
A digital operator fault occurred. −
CPF01:
Digital Operator
Transmission Error 2
A SERVOPACK fault occurred.
Cause Investigative Actions
Check the error counter (Un008)
while servo is OFF.
Check the error counter (Un008)
while servo is OFF.
Check the input reference pulse
counter (Un00C).
Measure the time lag between the
/HWBB1 and /HWBB2 signals.
Check the power supply wiring.
Measure the voltage at each phase
of the three-phase power supply.
Check the power supply and the
parameter setting.
−
Check the connector contact.
−
−
9.1 Troubleshooting
Corrective Actions
Set position error pulses to be
cleared while in servo OFF status.
Or, correct the excessive position
error alarm level (Pn520).
Set position error pulses to be
cleared while in servo OFF status.
Or, correct the excessive position
error alarm level (Pn520).
Or, adjust the speed limit level
(Pn529) when servo turns ON.
Reconsider the operating specifica-
tions.
The output signal circuits or devices
for /HWBB1 and /HWBB2 or the
SERVOPACK input signal circuits
may be faulty. Alternatively, the
input signal cables may be discon-
nected. Repair or replace them.
Confirm that the power supply is
correctly wired.
Balance the power supply by chang-
ing phases.
Match the parameter setting to the
power supply.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Insert securely the connector or
replace the cable.
Keep the digital operator or the
cable away from noise sources.
Disconnect the digital operator and
then re-connect it. If the alarm still
occurs, the digital operator may be
faulty. Repair or replace the digital
operator.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
9
9-19