YASKAWA SGD7S series Product Manual page 167

9.1 Alarm Displays
9.1.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.300:
Regeneration
Error
9-14
Possible Cause
Pn600 (Regenerative
Resistor Capacity) is
not set to 0 and an
External Regenerative Check it see if an Exter-
Resistor is not con- nal Regenerative Resis-
nected to one of the tor is connected and
following SERVO- check the setting of
PACKs: SGD7S- Pn600.
R70A, -R90A,-1R6A,
-2R8A, -R70F, -R90F,
-2R1F, or -2R8F.
An External Regener-
Check to see if an
ative Resistor is not
External Regenerative
connected to one of
Resistor or a Regenera-
the following SERVO-
tive Resistor Unit is con-
PACKs: SGD7S-
nected and check the
470A, -550A, -590A,
setting of Pn600.
or -780A.
The jumper between
the regenerative resis-
tor terminals (B2 and
B3) was removed Check to see if the
from one of the fol- jumper is connected
lowing between power supply
SERVOPACKs: terminals B2 and B3.
SGD7S-3R8A, -5R5A,
-7R6A, -120A, -180A,
-200A, or -330A.
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.
Connect an External
Regenerative Resistor and
set Pn600 to an appropri-
ate value, or connect a
Regenerative Resistor
Unit and set Pn600 to 0.
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
*1
*1
–
Continued on next page.