YASKAWA SGD7S series Product Manual page 490

12.2 Alarm Displays
12.2.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.042:
Parameter Com-
bination Error
A.044:
Semi-Closed/
Fully-Closed
Loop Control
Parameter
Setting Error
A.050:
Combination
Error
(The capacities of
the SERVOPACK
and Servomotor
do not match.)
A.051:
Unsupported
Device Alarm
12-14
Possible Cause
The speed of program
jogging went below
Check to see if the
the setting range
when the electronic
detection conditions
gear ratio (Pn20E/
are satisfied.
Pn210) or the Servo-
motor was changed.
The speed of program
jogging went below
Check to see if the
the setting range
when Pn533 or Pn585
detection conditions
(Program Jogging
are satisfied.
Movement Speed)
was changed.
The movement speed
of advanced autotun-
ing went below the
Check to see if the
setting range when
detection conditions
the electronic gear
are satisfied.
ratio (Pn20E/ Pn210)
or the Servomotor
was changed.
The setting of the
Fully-Closed Module
does not match the Check the setting of
setting of Pn002 = Pn002 = n.X.
n.X (External
Encoder Usage).
Check the capacities to
see if they satisfy the
The SERVOPACK and
following condition:
Servomotor capaci-
ties do not match
1/4
each other.
Replace the encoder
A failure occurred in
and check to see if the
the encoder.
alarm still occurs.
A failure occurred in
–
the SERVOPACK.
The motor parameter
file was not written to Check to see if the
the linear encoder. motor parameter file
(This applies only was written to the lin-
when not using a ear encoder.
Serial Converter Unit.)
An unsupported Serial
Converter Unit or
Check the product
encoder (e.g., an
combination specifica-
external encoder) is
tions.
connected to the
SERVOPACK.
Confirmation
Decrease the setting of
*1
the electronic gear ratio
(Pn20E/Pn210).
Increase the setting of
*1
Pn533 or Pn585.
Decrease the setting of
*2
the electronic gear ratio
(Pn20E/Pn210).
Make sure that the setting
of the Fully-closed Mod-
ule agrees with the setting
of Pn002 = n.X.
Select a proper combina-
tion of the SERVOPACK
ervomotor capacity and Servomotor capaci-
≤ ≤
4
ties.
ERVOPACK capacity
Replace the Servomotor
or encoder.
The SERVOPACK may be
faulty. Replace the
SERVOPACK.
Write the motor parame-
ter file to the linear
encoder.
Change to a correct com-
bination of models.
Continued from previous page.
Correction Reference
page 5-47
page 7-20
page 5-47
page 10-6
page 1-8
–
–
page 5-20
–
Continued on next page.