9.1 Alarm Displays
9-9
A.300:
Regeneration Error
The regenerative resistor capacity
(Pn600) is set to a value other
than 0 for a SGDV-R70F, -R90F,
-2R1F, -R70A, -R90A, -1R6A, or
-2R8A SERVOPACK, and an
external regenerative resistor is
not connected.
Check the external regenerative
resistor connection and the value of
the Pn600.
Connect the external regenerative
resistor, or set Pn600 to 0 if no
regenerative resistor is required.
An external regenerative resistor
is not connected to the SGDV
-470A, -550A, -590A, -780A, -
210D, -260D, -280D, or -370D
SERVOPACK.
Check the connection of the exter-
nal regenerative resistor or the
Yaskawa regenerative resistor unit
and the set value in Pn600.
Connect an external regenerative
resistor and set Pn600 to the appro-
priate value, or connect a Yaskawa
regenerative resistor unit and set
Pn600 to 0.
The jumper between the power
supply terminals B2 and B3 has
been removed for one of these
SERVOPACKs: SGDV-3R8A,
-5R5A, -7R6A, -120A, -180A,
-200A, -330A, -1R9D, -3R5D,
-5R4D, -8R4D, -120D, and
-170D.
Confirm that a jumper is mounted
between the power supply terminals
B2 and B3.
Correctly mount a jumper.
The external regenerative resis-
tor is incorrectly wired, or is
removed or disconnected.
Check the external regenerative
resistor connection.
Correctly connect the external
regenerative resistor.
A SERVOPACK fault occurred. −
Turn the SERVOPACK’s control
power supply OFF and ON again
while the main circuit power supply
is OFF. If the alarm still occurs, the
SERVOPACK may be faulty.
Replace the SERVOPACK.
A.320:
Regenerative
Overload
The power supply voltage
exceeds the specified limit.
Measure the power supply voltage.
Set the power supply voltage within
the specified range.
Insufficient external regenerative
resistance, regenerative resistor
capacity, or SERVOPACK capac-
ity.
Or, regenerative power has been
continuously flowing back.
Check the operating condition or
the capacity using the capacity
selection Software SigmaJunma-
Size+, etc.
Change the regenerative resistance,
regenerative resistor capacity, or
SERVOPACK capacity. Reconsider
the operating conditions using the
capacity selection software Sigma-
JunmaSize+, etc.
Regenerative power continu-
ously flowed back because nega-
tive load was continuously
applied.
Check the load applied to the servo-
motor during operation.
Reconsider the system including
servo, machine, and operating con-
ditions.
The setting of parameter Pn600 is
smaller than the external regener-
ative resistor's capacity.
Check the external regenerative
resistor connection and the value of
the Pn600.
Set the Pn600 to a correct value.
The external regenerative resis-
tance is too high.
Check the regenerative resistance.
Change the regenerative resistance
to a correct value or use an external
regenerative resistor of appropriate
capacity.
A SERVOPACK fault occurred. −
The SERVOPACK may be faulty.
Replace the SERVOPACK.
(cont’d)
Alarm Number:
Alarm Name
Cause Investigative Actions Corrective Actions
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