Warning Displays; List Of Warnings For Command Option Attachable Type Servopacks - YASKAWA S-V Series User Manual

9.2

Warning Displays

When a warning has been detected, the SERVOPACK displays the warning status as shown below, and contin-
ues motor operation.
 Status Displays
SERVOPACK Panel Display
LED
Digital Operator
Response to the Alarm or Warning Read
Command (ALM)
Response to the Most Recent Error Read
Command (ERR)
ALM Signal
/WARN Signal

9.2.1 List of Warnings for Command Option Attachable Type SERVOPACKs

The relation between warning displays and warning code outputs are shown below.
For details on the causes of warnings and the corrective action to take in response to them, refer to the User's
Manual, Design and Maintenance for your SERVOPACK.
Warning
Warning Name
Display
A.900 Position Error Pulse Overflow
Position Error Pulse Overflow
A.901
Alarm at Servo ON
A.910 Overload
A.911 Vibration
A.920 Regenerative Overload
A.921 Dynamic Brake Overload
A.930 Absolute Encoder Battery Error
The SERVOPACK's warning code is displayed.
Red LED: Flashing
When a warning occurs, the warning code is displayed at the top
left of the screen.
Warning code
No change
No change
Becomes active.
Meaning
Position error pulse exceeded the parameter set-
tings (Pn520×Pn51E/100).
When the servo turns ON, the position error pulses
exceeded the parameter setting (Pn526 × Pn528/
100).
This warning occurs before the overload alarms
(A.710 or A.720) occur. If the warning is ignored
and operation continues, an overload alarm may
occur.
Abnormal vibration at the motor speed was
detected. The detection level is the same as A.520.
Set whether to output an alarm or warning by
"Vibration Detection Switch" of Pn310.
This warning occurs before the regenerative over-
load alarm (A.320) occurs. If the warning is
ignored and operation continues, a regenerative
overload alarm may occur.
This warning occurs before the dynamic brake
overload alarm (A.731) occurs. If the warning is
ignored and operation continues, a dynamic brake
overload alarm may occur.
This warning occurs when the absolute encoder
battery voltage is lowered.

9.2 Warning Displays

Warning Code Output
/ALO1 /ALO2 /ALO3
OFF OFF OFF
(open) (open) (open)
ON OFF OFF
(close) (open) (open)
OFF ON OFF
(open) (close) (open)
ON ON OFF
(close) (close) (open)
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