Omron OMNUC G, Руководство пользователя

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8-16
8-3 Troubleshooting
Troubleshooting
8
Does not
Servo lock.
Not Servo locked.
Check the response of
the NCF71 Servo lock bit.
Set the Servo lock command
bit on the host controller
again.
The power cable is
not properly connected. Check the wiring of the Servomotor
power cable. Wire the Servomotor power
cable correctly.
Servomotor power is not
ON.
Check the wiring of the main circuit,
and the voltage of the power
supply.
Input the main circuit power
supply and voltage correctly.
The Forward and Reverse
Drive Prohibit Inputs (POT
and NOT) are OFF.
Œ
Check that the inputs for POT and
NOT are not OFF.
Œ
Check the +24 VIN input for CN1.
Turn ON POT and NOT, and
input +24 VIN correctly.
Torque limit is 0.
Check that torque limits Pn05E and
Pn05F are not set to 0. Set the maximum torque to
be used for each.
Torque control is used for
the control from the host
controller, and the torque
command value is set to 0.
Check the control mode and the
torque command value for the host
controller.
Set the control mode for the
host controller to position
control mode, and check
Servo lock.
Servo Drive failure. --- Replace the Servo Drive.
Servo lock is ON,
but Servomotor
does not rotate.
No command is sent
from the host controller. For position commands, check that
speed and position are not set to 0. Input the position and speed
data to start the Servomotor.
Cannot tell whether the
Servomotor is rotating.
Check that the speed command
from the host controller is not too
slow.
Check the speed command
from the host controller.
The holding brake is
working.
Check the brake interlock (BKIR)
signal and the +24 VDC power
supply. For a Servomotor with brake,
check that its holding brake
is released by Servo lock.
The No.1 and No. 2 Torque
Limits (Pn05E, Pn05F) are
too small. Check that the torque limits Pn05E
and Pn05F are not set to a value
close to 0.
Set the maximum torque to
be used for each.
Torque control is used for
the control from the host
controller, and the torque
command value is too
small.
Check the control mode and the
torque command value for the host
controller.
Set the control mode for the
host controller to position
control mode, and check
Servo lock.
The Speed Limit (Pn053) is
set to 0 for torque control
mode.
Check the Speed Limit (Pn053)
value. Increase the value for the
Speed Limit (Pn053).
Servo Drive failure. --- Replace the Servo Drive.
The Servomotor
operates
momentarily, but
it does not oper-
ate after that.
The Servomotor Power
Cable is wired incorrectly. Check the wiring of the Servomotor
Power Cable phases U, V, and W.
Correctly wire the Servomo-
tor Power Cable phases U,
V, and W.
Not enough position com-
mand data. Check the position data, electronic
gear, and others for NCF71.
Set the correct data.
Symptom Probable cause Items to check Countermeasure