Errors In Semi-Closed Loop Control With Rotary Motors - YASKAWA SGDV-OFB03A Product Manual

Error Lists

Errors in Semi-closed Loop Control with Rotary Motors

Alarm Number: Alarm
Name (Alarm Description)
A.CF2: Timer Stopped Error
in Feedback Option Module
Communications
A.D10: Motor-Load Position
Deviation Overflow
14.4 Errors in Semi-closed Loop Control with Rotary Motors
Alarm Number: Alarm
Name (Alarm Description)
A.041: Encoder Output
Pulse Setting Error
A.511: Encoder Output
Pulse Overspeed
A.810: Encoder Backup
Alarm
A.820: Encoder Checksum
Alarm
98
Cause
The specified cable is not
used or the cable is too
long.
Noise interferes with the
cable between encoder unit
and SERVOPACK.
Motor rotation direction and
external encoder installation
direction are opposite.
Mounting of the load (e.g.,
stage) and external encoder
joint installation are incor-
rect.
Cause
The setting of Pn212
(Encoder Output Pulses) is
outside of the setting range
or does not satisfy the set-
ting conditions.
n Rotary Servomotor: The
pulse output speed for
the setting of Pn212
(Encoder Output Pulses)
was exceeded.
The power supplies to the
encoder all failed and the
position data was lost.
No signal from encoder
detected.
A SERVOPACK fault
occurred.
Wiring incorrect or one
signal is missing.
Noise
| | Feedback Option Module Type 3 - Manual version C - Revision 0 | en |
Sigma-5 and Sigma-7 Series SERVOPACKs
Investigative Actions
Confirm the external
encoder wiring specifica-
tions.
-
Check the servomotor rota-
tion direction and the
external encoder installation
direction.
Check the external encoder
mechanical connection
Investigative Actions
Check the parameter
Pn212.
Check the encoder output
pulse output setting.
Check the encoder con-
nector battery or the con-
nector contact status.
-
-
-
-
Corrective Actions
Use the specified cable with
max. 20 m length.
Correct the wiring around
the feedback option module
or serial converter unit, e.g.
by separating the input/
output signal line from the
main circuit cable or by
grounding.
Install the external encoder
in the opposite direction, or
reverse the setting of the
external encoder usage
method (Pn002.3).
Check the mechanical
joints.
Corrective Actions
Set Pn212 to a correct
value.
Decrease the setting of the
encoder output pulse
(Pn212).
Replace the battery or take
similar measures to supply
power to the encoder, and
set up the encoder (Fn008).
Set up the encoder again
using Fn008. If the alarm
still occurs, the servomotor
may be faulty. Replace the
servomotor.
The SERVOPACK may be
faulty. Replace the SERVO-
PACK.
Recheck the wiring.
Connect shield properly as
recommended.