YASKAWA Sigma-V Series User Manual page 269

8 Troubleshooting
8.1.2 Troubleshooting of Alarms
Alarm Number:
Alarm Name
(Alarm Description)
A.E61:
MECHATROLINK
Transmission Cycle
Error
(Synchronization
interval error)
A.EA2:
DRV Alarm 2
(SERVOPACK WDT
error)
A.Eb1:
Safety Function Signal
Input Timing Error
A.Ed0：
Internal Command
Error
A.Ed1:
Command Execution
Timeout
A.EE0：
Local Communica-
tions Servo OFF Oper-
ation Error 1
A.EE1：
Local Communica-
tions Servo ON Oper-
ation Error 1
A.EE2：
Local Communica-
tions Servo ON Oper-
ation Error 2
A.EE3：
Local Communica-
tions Servo OFF Oper-
ation Error 2
8-20
Cause
MECHATROLINK transmission
cycle fluctuated.
A fault occurred in the multi-
winding drive unit or SERVO-
PACK.
MECHATROLINK transmission
cycle fluctuated.
A fault occurred in the multi-
winding drive unit or SERVO-
PACK.
The lag between activations of
the input signals /HWBB1 and
/HWBB2 for the HWBB function
is ten second or more.
A parameter was edited from a
digital operator or personal com-
puter during MECHATROLINK-
II communications.
A fault occurred in the SERVO-
PACK.
A timeout error occurred when
using a MECHATROLINK com-
mand.
The servo was not turned OFF for
all axes within 1 second after the
servo OFF request.
The servo was not turned ON for
all axes within 1 second after the
servo ON request.
Servo ON status could not be
detected for all axes during servo
ON status.
Servo OFF status could not be
detected for all axes during servo
OFF status.
Investigative Actions
Check the MECHATROLINK
transmission cycle setting.
−
Check the MECHATROLINK
transmission cycle setting.
−
Measure the time lag between the /
HWBB1 and /HWBB2 signals.
Check the procedure for editing
parameters.
–
Check the motor status when the
command is executed.
For fully-closed loop control, check
the status of the external encoder
after an output is made to execute
the command.
–
Check to see if the multi-winding
drive unit is in ready status.
Check to see if the motor is stopped.
Check to see if the multi-winding
drive unit is in ready status.
–
(cont'd)
Corrective Actions
Remove the cause of transmission
cycle fluctuation at host controller.
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.
Remove the cause of transmission
cycle fluctuation at host controller.
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.
The output signal circuits or devices
for /HWBB1 and /HWBB2 or the
multi-winding drive unit input sig-
nal circuits may be faulty. Alterna-
tively, the input signal cables may
be disconnected. Check if any of
these items are faulty or have been
disconnected.
Do not edit parameters from a digi-
tal operator or personal computer
during MECHATROLINK-II com-
munications.
Turn the control power supply OFF
and ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Execute the SV_ON or SENS_ON
command only when the motor is
not running.
Execute the SENS_ON command
only when an external encoder is
connected.
Perform an alarm reset and restart
operation.
Perform an alarm reset and restart
operation.
Perform an alarm reset and restart
operation.
Perform an alarm reset and restart
operation.
Perform an alarm reset and restart
operation.