YASKAWA Sigma-V Series User Manual page 270

Alarm Number:
Alarm Name
(Alarm Description)
A.EE4：
The local communications con-
Local Communica-
nection command was not com-
tions Connection Fail-
pleted.
ure
A.EE5：
Initialization processing of the
Local Communica-
local communications ASIC
tions ASIC Initializa-
failed.
tion Failure
The wiring for local communica-
tions is not correct.
A.EE6：
MECHATROLINK-II or
Local Communica-
A reception error occurred in the
tions Disconnection
local communications data due to
Error
noise.
The three-phase power supply
A.F10: wiring is incorrect.
Main Circuit Cable
The three-phase power supply is
Open Phase
unbalanced.
(With the main circuit
The connection of the I/O signals
power supply ON, volt-
(CN901) between the SERVO-
age was low for more
PACK and converter is faulty.
than 1 second in an R, S,
or T phase.)
(Detected when the main
A fault occurred in the SERVO-
power supply was turned
PACK or converter.
ON.)
The contactor is faulty in the
dynamic brake circuit.
Incorrect wiring of the dynamic
A.F30:
brake answer signal.
Dynamic Brake
Contactor Error
A fault occurred in the SERVO-
PACK.
The connection between the digi-
tal operator and multi-winding
CPF00:
drive unit is faulty.
Digital Operator
Transmission Error 1
Malfunction caused by noise
interference.
A digital operator fault occurred. −
CPF01:
Digital Operator
Transmission Error 2
A fault occurred in the multi-
winding drive unit or SERVO-
PACK.
Cause Investigative Actions
Check to see if the multi-winding
drive unit is in ready status.
Check the setting parameter for the
number of multi-winding drive
units.
–
Check the wiring of local communi-
cations.
–
Check the power supply wiring.
Measure the voltage at each phase
of the three-phase power supply.
Check the connection of CN901.
−
Check the contacts to see if they are
welded or not.
Check the wiring of the dynamic
brake answer signal.
−
Check the connector contact.
−
−
8.1 Alarm Displays
(cont'd)
Corrective Actions
Perform an alarm reset and restart
operation.
Reset the setting parameter for the
number of multi-winding drive
units.
Turn the control power supply OFF
and ON again. Replace the multi-
winding drive unit.
Wire the local communications
cable correctly. Install the termina-
tor correctly.
Take countermeasures against
noise. (For example, correct the
cable and field ground wiring. Or,
place a ferrite core on the local
communications cable.)
Confirm that the power supply is
correctly wired.
Balance the power supply by chang-
ing phases.
Correctly connect CN901.
Turn the main circuit power supply
OFF and ON again. If the alarm still
occurs, the SERVOPACK or con-
verter may be faulty. Replace the
SERVOPACK or converter.
The contactor may be faulty.
Replace the contactor.
Correctly wire the dynamic brake
answer signal.
Turn the control power supply OFF
and ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
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. Replace the digital operator.
Turn the control power supply OFF
and ON again. If the alarm still
occurs, the multi-winding drive unit
or SERVOPACK may be faulty.
Replace the multi-winding drive
unit or SERVOPACK.
8
8-21