Alarm Code Alarm Name Possible Cause Confirmation Correction
Bit "Control By PLC" (STW1 bit 10)
not set during state "S4: Opera-
tion".
Check bit "Control By
PLC" (STW1 bit 10)
was reset by applica-
tion / PLC during state
"S4: Operation".
Set bit "Control By
PLC" (STW1 bit 10)
and send command
fault acknowledge.
A.AAB
(1AABh)
Impermissible
Traversing
Block Data
Values of the Traversing Block pro-
file to activate are outside valid
range.
Check if the Traversing
Block (TB) profile (Tra-
versing Block Task
Mode, TB Profile
Velocity, TB Profile
Acc., TB Profile Dec.)
is in valid range.
Correct the values of
Traversing Block pro-
file, send command
fault acknowledge and
activate Traversing
Block profile again.
A.AEF
(1AEFh)
Driver Reset
Interruption
Drive Reset (PNU 972) command
was sent.
- -
A.EA0
(1EA0h)
Command-
Option IF Servo
Unit Initial Error
A failure occurred in the PROFINET
SERVOPACK module.
Check the SERVO-
PACK and its connec-
tions.
Cycle power.
- Replace the
PROFINET SERVO-
PACK module.
A.EA1
(1EA1h)
Command-
Option IF
Memory Check
Error
A failure occurred in the PROFINET
SERVOPACK module.
Check the SERVO-
PACK and its connec-
tions.
Cycle power.
- Replace the
PROFINET SERVO-
PACK module.
A.EA2
(1EA2h)
Command-
Option IF Servo
Synchronization
Error
A failure occurred in the PROFINET
SERVOPACK module.
Check the SERVO-
PACK and its connec-
tions.
Cycle power.
- Replace the
PROFINET SERVO-
PACK module.
A.EA3
(1EA3h)
Command-
Option IF Servo
Data Error
Noise caused an error in communi-
cations in the SERVOPACK.
- Implement counter-
measures against
noise.
Check the SERVO-
PACK and its connec-
tions.
Cycle power.
A failure occurred in the PROFINET
SERVOPACK module.
- Replace the
PROFINET SERVO-
PACK module.
16.4.3.3 Troubleshooting of the SERVOPACK Alarms
The causes of and corrections for the alarms are given in the following table. Contact
your YASKAWA representative if you cannot solve a problem with the correction given in
the table.
Sigma-7 Series SERVOPACKs
Maintenance
Alarm Displays > Troubleshooting Alarms
| | PROFINET Communications - SIEP YEUOC7P 02A Revision 0 | en | 596
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