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11-1
Section
Troubleshooting Tables
278
No.
Remedy
Items to check
Probable causes
Problem
9
The motor is not
i
The servo is not locked.
Refer to 7 and 8.
Refer to 7 and 8.
10
turning.
The wiring is incorrect
between the PCU and the
Servo Drive.
Check the wiring with a tester.
Change the connecting cables.
Correct the wiring.
11
A run prohibit input, such as
POT or NOT, is ON for a
U-series Servo Drive (when
Cn-01 bits 2 and 3 are 0).
Check the run prohibit inputs.
Turn OFF the Servo
Drive run prohibit input.
Make the setting so that
the Servo Drive run
prohibit inputs will not be
used.
12
The Servo Drive is in the
internally set speed control
mode (and is not receiving
PCU speed referenced).
Check the Servo Drive setting.
Correct the Servo Drive
setting.
13
A Servo Drive alarm has
been generated.
Check the contents of the Servo
Drive alarm.
If there is an alarm, then
follow the instructions.
14
The mechanical axis is
locked.
Check whether there is a
mechanical limit or lock in
effect.
Manually release the
mechanical lock.
15
The PCU is defective.
---
Replace the PCU.
16
Origin search
cannot be
executed.
An error or warning has been
generated.
Check the contents of the error
or warning.
If there is an error or
warning, then follow the
instructions.
17
The PCU’s origin proximity
input is wired incorrectly.
Use the Teaching Box’s input
signal monitor function to check
whether the sensors are turning
ON and OFF normally.
Correct the wiring.
18
The origin input signal is
incorrectly wired to the PCU.
Check the wiring for the origin
input signal.
Correct the wiring.
19
The direction of rotation does
not match the direction of the
limit input.
If axis rotation is reaching the
mechanical limit without
reversing direction, check
whether the limit inputs in the
operating memory area are
turning ON and OFF normally.
Correct the limit input
wiring.
20
The limit input is wired
incorrectly.
Check the limit input wiring.
Correct the limit input
wiring.
21
The positioning completed
signal does not turn ON.
Check that the Servo Drive’s gain
is not set too low.
Check that the in-position width
of the Servo Drive is not too
small.
Increase
the
Servo
Drive’s gain.
Increase
the
Servo
Drive’s in-position width.
22
The origin search proximity
speed is too fast.
Check the origin search
proximity speed.
Decrease the origin
search proximity speed.
23
The parameters are set
incorrectly.
Check the CX-Position or DM
Area parameters.
If the single-direction mode is
specified for a system in which
limits are set for both sides, for
example, an error will occur and
operation will stop when a limit
is detected.
Set the parameters
correctly, transfer them
to the PCU, and write
them to flash memory.
24
The PCU is defective.
---
Replace the PCU.
Summary of Contents for CS1W-NC113 - REV 02-2008
Page 1: ...CS1W NC113 213 413 133 233 433 Position Control Units ...
Page 2: ...iv ...
Page 4: ...vi ...