YASKAWA Sigma-7 Series Product Manual page 97

Alarm Number:
Possible Cause
Alarm Name
The speed of program
jogging went below
the setting range
when the electronic
gear ratio (Pn20E/
Pn210) or the Servo-
motor was changed.
The speed of program
jogging went below
A.042:
the setting range
when Pn533 or Pn585
Parameter
(Program Jogging
Combination
Movement Speed)
Error
was changed.
The movement speed
of advanced autotun-
ing went below the
setting range when
the electronic gear
ratio (Pn20E/ Pn210)
or the Servomotor
was changed.
For 4-byte parameter
bank members, there
are two consecutive
A.04A:
members with nothing
Parameter
registered.
Setting
The total amount of
Error 2
bank data exceeds 64
(Pn900 × Pn901 >
64).
The SERVOPACK and
Servomotor capaci-
A.050:
ties do not match
Combination each other.
Error
(The capacities of
the SERVOPACK
and Servomotor
do not match.)
A failure occurred in
the encoder.
A failure occurred in
the SERVOPACK.
The motor parameter
file was not written to
the linear encoder.
(This applies only
A.051:
when not using a
Unsupported
Serial Converter Unit.)
Device Alarm
An unsupported Serial
Converter Unit or
encoder is connected
to the SERVOPACK.
Confirmation
Check to see if the
Decrease the setting of
*1
the electronic gear ratio
detection conditions
(Pn20E/Pn210).
are satisfied.
Check to see if the
Increase the setting of
*1
detection conditions
Pn533 or Pn585.
are satisfied.
Check to see if the
Decrease the setting of
*2
the electronic gear ratio
detection conditions
(Pn20E/Pn210).
are satisfied.
Change the number of
– bytes for bank members
to an appropriate value.
Reduce the total amount
–
of bank data to 64 or less.
Confirm that the follow-
ing condition is met:
1/4 ≤ (Servomotor
capacity/SERVOPACK
capacity) ≤ 4
However, the above for-
mula does not apply to
Select a proper combina-
the following products.
tion of the SERVOPACK
• SGD7W-2R8A
and Servomotor capaci-
SERVOPACK and
ties.
SGM7J-A5A
Servomotor
• SGD7W-2R8A
SERVOPACK and
SGM7A-A5A
Servomotor
Replace the encoder
Replace the Servomotor
and check to see if the
or encoder.
alarm still occurs.
The SERVOPACK may be
– faulty. Replace the
SERVOPACK.
Check to see if the
Write the motor parame-
motor parameter file
ter file to the linear
was written to the lin-
encoder.
ear encoder.
Check the product
Change to a correct com-
combination specifica-
bination of models.
tions.
6.1 Alarm Displays
6.1.2 Troubleshooting Alarms
Continued from previous page.
Correction Reference
*1
*1
*1
–
–
*1
–
–
*1
–
Continued on next page.
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