Omron CS1W-MC221 -, Operation Manual

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Troubleshooting Tables Section 12-1
61 There is slippage in
positioning. The slippage is not constant.
Malfunction due to noise.
Is shielded cable being used? Use shielded cable.
62 The shield is not properly
grounded at the Servo Driver. Check the ground wiring. Correct the wiring.
63 The MC Unit’s output power
supply is not separated from
other power supplies. Check whether the MC Unit’s
output power supply is
separated from other power
supplies. Separate the MC output
power supply from other
power supplies.
64 Install a noise filter at the
primary side of the MC
Unit’s output power
supply.
65 Ground the MC Unit’s
output power supply.
66 Twisted-pair cable is not being
used for the pulse outputs. Check whether twisted-pair
cable is being used for the pulse
outputs. (The connected voltage
is 0 V or 5/24 VDC.) Use twisted-pair cable for
pulse outputs.
67 The cable between the MC
Unit and the Servo Driver is
not separated from other
power lines. Check whether the cable is
separated from other power
lines. Separate the cable from
other power lines.
68 The cable between the MC
Unit and the Servo Driver is
too long. Check whether the cable is two
meters or less. The maximum cable
length is two meters.
69 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.
70 The RUN signal turns OFF
during operation. Check whether the Servo
Driver’s RUN signal is turning
OFF during operation. Turn ON the RUN signal
with the correct timing.
71 There is slippage in the
mechanical system. Check for slippage by marking
the mechanical connections. Tighten the connections.
72 An error has
occurred in the MC
Unit wiring. There is an offset in the MC
Unit’s speed reference
voltage and the Servo Driver’s
speed reference input section. --- Adjust the speed
reference offset at the
Servo Driver with the MC
Unit connected and servo
OFF.
73 The encoder signal and speed
reference wiring between the
MC Unit and the Servo Driver
is faulty or disconnected. Set the wiring check parameter
to “no wiring check,” and check
to see if there is motor runaway.
(Perform the check with the
motor coupling disconnected.) If
runaway occurs, then there is a
wiring error. Correct the wiring.
74 An MC Unit parameter setting
is wrong. Set the wiring check parameter
for no wiring check, and check to
see if there is motor runaway.
(Perform the check with the
motor coupling disconnected.) If
runaway does not occur, then a
parameter setting is wrong. Set the encoder polarity
to reverse in the MC
Unit’s machine
parameters.
No. Problem Probable causes Items to check Remedy