YASKAWA SGD7S series Product Manual page 163

9.1 Alarm Displays
9.1.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.042:
Parameter Com-
bination Error
A.044:
Semi-Closed/
Fully-Closed
Loop Control
Parameter
Setting Error
A.04A:
Parameter Set-
ting Error 2
A.050:
Combination
Error
(The capacities of
the SERVOPACK
and Servomotor
do not match.)
A.051:
Unsupported
Device Alarm
9-10
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).
For 4-byte parameter
bank members, there
are two consecutive –
members with nothing
registered.
The total amount of
bank data exceeds 64
–
(Pn900 × Pn901 >
64).
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
*2
the electronic gear ratio
(Pn20E/Pn210).
Increase the setting of
*2
Pn533 or Pn585.
Decrease the setting of
*3
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.
Change the number of
bytes for bank members
to an appropriate value.
Reduce the total amount
of bank data to 64 or less.
Select a proper combina-
tion of the SERVOPACK
and Servomotor capaci-
Servomotor capacity
≤ ≤
4
ties.
SERVOPACK capacity
Replace the Servomotor
or encoder.
The SERVOPACK may be
faulty. Replace the SER-
VOPACK.
Write the motor parame-
ter file to the linear
encoder.
Change to a correct com-
bination of models.
Continued from previous page.
Correction Reference
*1
*1
*1
*1
–
–
page 1-4
–
–
*1
–
Continued on next page.