YASKAWA SGM7D-30F Product Manual page 225

3.4 Command Option Attachable-type FT82 SERVOPACKs with INDEXER Modules
3.4.3 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.300:
Regeneration
Error
3-156
Possible Cause
Pn600 (Regenerative
Resistor Capacity) is
not set to 0 and an Check it see if an Exter-
External Regenerative nal Regenerative Resis-
Resistor is not con- tor is connected and
nected to one of the check the setting of
following SERVO- Pn600.
PACKs: SGD7S-2R8A
or -2R8F.
The jumper between
the regenerative resis-
tor terminals (B2 and Check to see if the
B3) was removed jumper is connected
from one of the fol- between power supply
lowing SERVO- terminals B2 and B3.
PACKs: SGD7S-
120A.
The External Regener-
ative Resistor is not Check the wiring of the
wired correctly, or was External Regenerative
removed or discon- Resistor.
nected.
A failure occurred in
–
the SERVOPACK.
Confirmation
Connect an External
Regenerative Resistor, or
set Pn600 (Regenerative
Resistor Capacity) to 0
(setting unit: ×10 W) if no
Regenerative Resistor is
required.
Correctly connect a
jumper.
Correct the wiring of the
External Regenerative
Resistor.
While the main circuit
power supply is OFF, turn
the control power supply
to the SERVOPACK OFF
and ON again. If an alarm
still occurs, the SERVO-
PACK may be faulty.
Replace the SERVO-
PACK.
Continued from previous page.
Correction Reference
*1
*1
–
Continued on next page.