– 8 –
(4) Sample circuit recommended
Note
• The relays and extension cables are field supplied.
• Use a no-voltage contact and minute load relay (minimum application load 5VDC-1mA).
• The length of the connection cable extension should not exceed 10 m (32 ft). (Use a cable of 0.3 mm² (22AWG) or thicker.)
• Insulate the area with vinyl tape where the controller cable and the extension cable are connected.
• Insulate the end of unused lead wires with tape.
2. External signal output
*To use external output, an external input/output adapter (PAC-YT51HAA; sold separately) is required.
Requires a separate external power source.
(1) External signal output (CN3)
An ON signal is output when one or more units are in operation, and an Error signal is output when one or more units are in error.
The ON signal will be output even during an error.
(2) External output specifications
(3) Sample circuit recommended
Note
(A) Level signal
(B) Pulse signal
CN3
Lead wire
Signal
CN3
Lead wire
Signal
1
Brown
ON/OFF
3
Orange
Ground for all external outputs
2
Red
Error/Normal
4
Yellow
Not used
Relay-driven circuit
Use relays that meet the following specifications for relays indicated as Z1 and Z2 in
the figure.
Operating coil
Rated voltage: 12 VDC or 24 VDC
Power consumption: 0.9 W or below
*1 Select a power supply suitable for the relays used. (12 VDC or 24 VDC)
*2 Use a diode at each end of the relay coil.
• Each element will turn on when an error occurs during operation.
• The maximum length of extension cable is 10 m (32 ft). (Use a cable of 0.3 mm²
(22AWG) or thicker.)
• Insulate the area with vinyl tape where the controller cable and the extension
cable are connected.
• Relays, lamps, diode, extension cables are field-supplied.
Note
• External output of the AT-50B is a dry contact. Select an external power supply suitable for the relays used (12 VDC or 24 VDC).
• To prevent malfunction, connect the external power supply to the input circuit with the correct polarity.
CN2
X1
AT-50B
X1
1
2
3
4
5
Maximum
10 m
(32 ft)
Field supplied
Yellow
Green
ON/OFF
or Emergency stop
X1
X2
Y1
Y2
CN2
X1
AT-50B
X2
Y1
Y2
1
2
3
4
5
Orange
Maximum
10 m
(32 ft)
Field supplied
Brown
Red
Yellow
Green
Prohibit
ON
Permit
OFF
• External output of the AT-50B is a dry contact. Select an external power supply suitable for the relays used (12 VDC or 24 VDC).
• To prevent malfunction, connect the external power supply to the output circuit with the correct polarity, especially when using relays with
built-in diodes for surge prevention.
• Connect
3
in the figure below to the negative terminal.
• Connect the relays before connecting the external power supply to avoid no-load operation.
• Use a diode at each end of the relay coils (relay coils with built-in diodes are recommended).
CN3
Z2
L2
L1
AT-50B
2
1
3
4
Z2
Z1
Z1
Brown
Red
Orange
Maximum
10 m
(32 ft)
Power source
*1
Diode
*2
L1 : Operation indicator
L2 : Error indicator
Field supplied
Yellow
• To connect cables from an external input/output adapter to connectors CN2 and CN3 on the controller, cut out the appropriate knockout
holes on the controller with nippers.
After connecting the cables to the connectors, hold the cables in place with a piece of tape included with the external input/output
adapter (PAC-YT51HAA).
• Use caution not to damage the circuit board with the nippers or other tools when cutting out knockout holes.
Back of controller
CN2
External input connector
Tape
External
input/output adapter
CN3
External output connector
Cut out the
knockout holes.
WT06990X04_GB.book 8 ページ ２０１８年５月２２日 火曜日 午後１時５５分
