Chapter 10 Troubleshooting
: Reverse software limit
Potential Cause Checking Method Corrective Actions
Position command is
equal to or less than
forward software
limit.
This software limit is determined
according to position command, not
actual feedback position. It indicates that
when this fault is activated, the actual
position may not exceed the limit.
Setting the proper deceleration time is
able to solve this problem. Please refer
to parameter P5-03.
NMT Maser send “Reset
node“ command to its slave or
reset the fault by sending the
control word (0x6040) through
CAN communication (the value
of CANopen object 0x6040
should be reset)
: Position counter overflow
Potential Cause Checking Method Corrective Actions
Position counter
overflow occurs.
If this fault occurs, please contact your
distributor for assistance or contact with
Delta.
NMT Maser send “Reset
node“ command to its slave or
reset the fault by sending the
control word (0x6040) through
CAN communication (the value
of CANopen object 0x6040
should be reset)
: Servo Off error
Potential Cause Checking Method Corrective Actions
Servo Off occurs
during positioning
(when the drive and
motor are both
running).
1. Examine if the wiring of digital input
for Servo On is correct.
2. Check if the host (external) controller
disables the function of Servo On too
early.
NMT Maser send “Reset
node“ command to its slave or
reset the fault by sending the
control word (0x6040) through
CAN communication (the value
of CANopen object 0x6040
should be reset)
: CANopen SYNC failed
Potential Cause Checking Method Corrective Actions
CAN IP mode error.
The synchronous
communication with
the external
controller has failed.
1. Check if the communication quality is
good quality state.
2. Check if the host (external) controller
has sent SYNC signal.
3. Check if the setting value of parameter
P3-09 is a proper value (It is
recommended to use default setting).
NMT Maser send “Reset
node“ command to its slave or
reset the fault by sending the
control word (0x6040) through
CAN communication (the value
of CANopen object 0x6040
should be reset)
10-24 Revision January 2011
Call 1(800)985-6929 for Sales
Call 1(800)985-6929 for Sales
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