YASKAWA E-V-MD Series User Manual page 267

Alarm Number:
Alarm Name
(Alarm Description)
The speed of program JOG oper-
ation is lower than the setting
range after changing the elec-
tronic gear ratio (PnA42/PnA44)
or the servomotor.
The speed of program JOG oper-
A.042:
ation is lower than the setting
Parameter range after having changed the
Combination Error setting of the program JOG
movement speed (Pn533).
The travel speed for advanced
autotuning is lower than the set-
ting range after changing the
electronic gear ratio (PnA42/
PnA44) or the servomotor.
A.050:
The SERVOPACK and servomo-
Combination Error
tor capacities do not match each
(The SERVOPACK
other.
and servomotor
capacities do not
An encoder fault occurred.
correspond.)
A.051:
An unsupported encoder is con-
Unsupported Device
nected to the SERVOPACK.
Alarm
After executing the utility func-
A.0b0:
tion to turn ON the power to the
motor, the servo ON command
Cancelled Servo ON
(SV_ON) was sent from the host
Command Alarm
controller.
∗1. Detection conditions
If one of the following conditions detected, an alarm occurs.
Pn533 [min
•
Max Motor Speed [min
•
∗2. Detection conditions
If one of the following conditions detected, an alarm occurs.
Rated Motor Speed [min
•
Max Motor Speed [min
•
Cause
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
≤
4
Replace the servomotor and see if
the alarm occurs again.
Check the product specifications,
and select the correct model.
−
Encoder resolution
PnA42
-1
] × ≤
5
PnA44
6 × 10
Encoder resolution
-1
] ×
About 3.66 × 10
Encoder resolution
1
-1
] × ×
3
6 × 10
Encoder resolution
-1
] ×
About 3.66 × 10
Investigative Actions
*1
Decrease the gear ratio (PnA42/
PnA44).
*1
Increase the setting of the program
JOG movement speed (Pn533).
*2
Decrease the gear ratio (PnA42/
PnA44).
Select the proper combination of
SERVOPACK and servomotor
Servomotor capacity
≤ 4 capacities.
SERVOPACK capacity
Replace the servomotor (encoder).
Select the correct combination of
units.
Restart the SERVOPACK or exe-
cute a software reset.
PnA42
≥
12 PnA44
PnA42
≤
5 PnA44
PnA42
≥
12
PnA44
10.2 Alarm Displays
(cont'd)
Corrective Actions
10-7
10