11-1
Section
Troubleshooting Tables
282
No.
Remedy
Items to check
Probable causes
Problem
53
There is slippage in
positioning.
The slippage is not constant.
Malfunction due to noise.
Is shielded cable being used?
Use shielded cable.
54
There was already slippage
in the position of the origin
before positioning was
performed.
Refer to 25 and 26.
Refer to 25 and 26.
55
The shield is not properly
grounded at the Servo Drive.
Check the ground wiring.
Correct the wiring.
56
The PCU’s output power
supply is not separated from
other power supplies.
Check whether the PCU’s
output power supply is
separated from other power
supplies.
Separate the PCU’s
output power supply
from other power
supplies.
57
pp
Install a noise filter at the
primary side of the
PCU’s output power
supply.
58
Ground the PCU’s
output power supply.
59
The cable between the PCU
and the Servo Drive is too
long.
----
The maximum cable
length is two meters for
open collector output
models and five meters
for line driver output
models.
60
Twisted-pair cable is not
being used for the pulse
outputs.
Check whether twisted-pair
cable is being used for the
pulse outputs.
Use twisted-pair cable
for pulse outputs.
61
The cable between the PCU
and the Servo Drive is not
separated from other power
lines.
Check whether the cable is
separated from other power
lines.
Separate the cable from
other power lines.
62
There is malfunctioning due
to noise from a welding
machine, inverter, etc.
Check whether there is a device
such as a welding machine or
inverter nearby.
Separate the Unit from
the noise source.
63
Output for operating
commands turns OFF during
operation.
Check whether the Servo
Drive’s operating command
output signals are turning OFF
during operation.
Turn ON the operating
command output signals
with the correct timing.
64
There is slippage in the
mechanical system.
Check for slippage by marking
the mechanical connections.
Tighten the connections.
65
Speeds drops (or
operation stops)
during continuous
operation
The minimum operating time
(10 ms min.) is not achieved.
Calculate the movement time by
dividing the amount of
movement by the speed to
check whether operation is
longer than the minimum
operating time.
Add the minimum
operating time and other
factors, and adjust the
target distance and
speed so that the
movement time will be
greater than this total.
66
When memory
operation is
temporarily
stopped and then
restarted, it starts
from the beginning
again (not from
where operation
was temporarily
stopped)
When operation is restarted,
the Sequence Number
Enable Bit is ON at the point
when the START Bit is turned
ON.
Check the ladder program and
data trace.
Change the ladder
program so that the
Sequence Number
Enable Bit is turned OFF
when the START Bit is
turned on to resume
operation.
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 ...
