YASKAWA SERVOPACK Sigma 7C Series, Руководство по эксплуатации продукта

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6.1 Alarm Displays
6.1.2 Troubleshooting Alarms Related to the HWBB Function
6-3
6
Maintenance
6.1.2 Troubleshooting Alarms Related to the HWBB Function
The following table describes troubleshooting alarms that are related to the HWBB function.
Contact your Yaskawa representative if you cannot solve a problem with the corrections given
in the table.
Alarm Number:
Alarm Name
Possible Cause Confirmation Correction Reference
A.Eb1:
Safety Function
Signal Input Tim-
ing Error
The delay between
activation of the
/HWBB1 and
/HWBB2 input sig-
nals for the HWBB
function was ten sec-
ond or longer.
Measure the time delay
between the /HWBB1
and /HWBB2 signals.
The output signal circuits
or devices for /HWBB1
and /HWBB2 or the SER-
VOPACK input signal cir-
cuits may be faulty.
Alternatively, the input sig-
nal cables may be discon-
nected. Check to see if
any of these items are
faulty or have been dis-
connected.
page 5-1
A failure occurred in
the SERVOPACK.
–
Replace the SERVO-
PACK.
–
A.EC8:
Gate Drive Error 1
(An error
occurred in the
gate drive circuit.) A failure occurred in
the SERVOPACK.
–
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
–
A.EC9:
Gate Drive Error 2
(An error
occurred in the
gate drive circuit.)