YASKAWA SGD7S-R70A Product Manual page 150

8.1 Alarm Displays
8.1.2 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.)
8-10
Possible Cause
The speed of program
jog operation went
below the setting
Check to see if the
range when the elec-
detection conditions
tronic gear ratio
are satisfied.
(Pn20E/Pn210) or the
Servomotor was
changed.
The speed of program
jog operation went
Check to see if the
below the setting
range when Pn533 or
detection conditions
Pn585 (Program Jog
are satisfied.
Operation 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).
A parameter reserved
by the system was –
changed.
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.
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.
Set the following reserved
parameters to the default
settings.
Pn200.2
Pn207.1
Pn50A.0
Pn50A.1
Pn50A.2
Pn50C
Pn50D
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 SER-
VOPACK.
Continued from previous page.
Correction Reference
*1
*1
*1
*1
–
page 1-4
–
–
Continued on next page.