Sanyo Denki Sanmotion R 3E S, Instruction Manual, Page: 368 / 514

8. Maintenance
8-35
■
Alarm Code D5 (Dual position error excess)
 Corrective actions
Status at the time of alarm
Cause
1 2 3 4 5 6 7 8 9 10
Issued immediately after
entering the command.
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
Issued during starting / stopping
at high speed.
✔ ✔ ✔ ✔ ✔ ✔
Issued during the operations by
lengthy command.
✔
Cause Investigation and corrective actions
1
■
Servo motor and load (external
encoder) are not connected
mechanically. Or the connection is
not rigid.
■
Review the mechanical connection
status.
2
■
Servo parameters are not correct.
(Position loop gain, Position
feedback gain, etc)
■
Adjust the servo parameter
according to "9.1.5.7 Dual position
feedback compensation".
3
■
Motor encoder pulse setting does
not match with the servo motor.
■
Fit to the motor encoder pulse
number of the servo motor.
4
■
External encoder resolution does
not match to servo motor encoder
resolution after feedback electronic
gear.
■
Review the system parameter ID22
"External encoder resolution",
ID24/ 25 "Feedback electronic gear
numerator/ denominator",
according to "9.1.5.4 Feedback
pulse setting".
5
■
The polarity of external encoder
does not match to the motor
encoder.
■
Check the wiring conditions of
external encoder and correct it if
improper.
■
Set the parameter GroupC ID02
"External Encoder Polarity
Selection", according to "9.1.5.5
Rotation direction setting for servo
motor ".
6
■
Rounded off a rest, at the setting of
ID24/ 25 "Feedback electronic gear
numerator/ denominator".
■
Invalid the alarm by setting 0 pulse
to GroupB ID1A "Dual position error
excess value".
7
■
Setting value of Dual position error
excess error is too small.
■
Larger the setting of GroupB ID1A
"Dual position error excess value".
8
■
Defect in internal circuit of servo
amplifier.
■
Replace the servo amplifier.
9
■
Defect in internal circuit of motor
encoder.
■
Replace the servo motor.
10
■
Defect in internal circuit of external
encoder.
■
Replace the external encoder.