
CJ1W-NC
@@
4
8
External Interface
Name of Each Part
LED Display
LED
name
Display
color
Status
Explanation
RUN
Green
Lit
Normal operation
Unlit
The power supply is OFF, a hardware error has occurred, or the PLC detects a PCU error.
ERC
Red
Lit
An error is occurring.
Unlit
Other than the above
ERH
Red
Lit
An error is occurring in the PLC.
Unlit
Other than the above
1
Orange
Lit
Pulse output to Axis 1 in progress (forward/reverse direction)
Flashing
An error related to a connection cable, data, etc. of axis 1 has occurred.
Unlit
Other than the above
2
Orange
Lit
Pulse output to Axis 2 in progress (forward/reverse direction)
Flashing
An error related to a connection cable, data, etc. of axis 2 has occurred.
Unlit
Other than the above
3
Orange
Lit
Pulse output to Axis 3 in progress (forward/reverse direction)
Flashing
An error related to a connection cable, data, etc. of axis 3 has occrred.
Unlit
Other than the above
4
Orange
Lit
Pulse output to Axis 4 in progress (forward/reverse direction)
Flashing
An error related to a connection cable, data, etc. of axis 4 has occrred.
Unlit
Other than the above
A1, B1
Orange
Lit
ON
Phase A/B-input status of the Axis 1 feedback counter
ON when lit, OFF when unlit
Unlit
OFF
A2, B2
Orange
Lit
ON
Phase A/B-input status of the Axis 2 feedback counter
ON when lit, OFF when unlit
Unlit
OFF
A3, B3
Orange
Lit
ON
Phase A/B-input status of the Axis 3 feedback counter
ON when lit, OFF when unlit
Unlit
OFF
A4, B4
Orange
Lit
ON
Phase A/B-input status of the Axis 4 feedback counter
ON when lit, OFF when unlit
Unlit
OFF
AS, BS
Orange
Lit
ON
Phase A/B-input status of the MPG input
ON when lit, OFF when unlit
Unlit
OFF
SYNC
Green
Lit
In the SYNCHRONOUS OPERATION mode
Unlit
Other than the above
Unit number
setting switch
Set the PCU
unit number.
External signal
connector for
axes 1 and 2
Connects to
external input.
External signal
connector and
MPG connector
for axes 3 and 4
Connects to external
input and MPG.
Axes 1 and 2
connector
Connects to the
Servomotor
Drive or stepping
motor driver
(2-axis control).
Axes 3 and 4
connector
Connects to the
Servomotor
Drive or stepping
motor driver
(2-axis control).
CJ1W-NC414/-NC434
CJ1W-NC214/-NC234
LED indicator
Indicates the
operation status
of the PCU.
External signal
connector and
MPG connector
for Axes 1 and 2
Connects to
external input and
MPG.
Axes 1 and 2
connector
Connects to the
Servomotor
Drive or stepping
motor driver
(2-axis control).