YASKAWA SGDV User Manual page 265

9 Troubleshooting
9.1.2 Troubleshooting of Alarms
Alarm Number:
Alarm Name
(Alarm Description)
*1
A.042:
Parameter
Combination Error
A.050:
Combination Error
(The SERVOPACK and
servomotor capacities do
not correspond.)
A.051:
Unsupported Device
Alarm
A.0b0:
Cancelled Servo ON
Command Alarm
∗1. Detection conditions
If one of the following conditions detected, an alarm occurs.
9-6
Cause
The speed of program JOG oper-
ation (Fn004) is lower than the
setting range after having
changed the electronic gear ratio
(Pn20E/Pn210) or the servomo-
tor.
The speed of program JOG oper-
ation (Fn004) is lower than the
setting range after having
changed the setting of the pro-
gram JOG movement speed
(Pn533).
The moving speed of advanced
autotuning is lower than the set-
ting range after having changed
the electronic gear ratio (Pn20E/
Pn210) or the servomotor.
The SERVOPACK and servomo-
tor capacities do not match each
other.
An encoder fault occurred.
A SERVOPACK fault occurred.
An unsupported encoder is con-
nected to the SERVOPACK.
After executing the utility func-
tion to turn ON the power to the
motor, the servo ON signal (/S-
ON) was sent from the host con-
troller.
Encoder resolution
-1
] ×
Pn533 [min
•
6 × 10
-1
] ×
Max Motor Speed [min
•
Investigative Actions
Check if the detection conditions
are satisfied.
Check if the detection conditions
are satisfied.
Check if the detection conditions
are satisfied.
Check the capacities to see if they
satisfy the following condition:
1
Servomotor capacity
≤
4
SERVOPACK capacity
Replace the servomotor and see if
the alarm occurs again.
−
Check the product specifications,
and select the correct model.
−
Pn20E
≤
5 Pn210
Encoder resolution
Pn20E
≥
12
Pn210
About 3.66 × 10
Corrective Actions
*1
Decrease the setting of the elec-
tronic gear ratio (Pn20E/Pn210).
*1
Increase the setting of the program
JOG movement speed (Pn533).
*1
Decrease the setting of the elec-
tronic gear ratio (Pn20E/Pn210).
Select the proper combination of
SERVOPACK and servomotor
≤ 4
capacities.
Replace the servomotor (encoder).
The SERVOPACK may be faulty.
Replace the SERVOPACK.
Select the correct combination of
units.
Restart the SERVOPACK or exe-
cute a software reset.
(cont'd)