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5
3.2mm
5.
8
m
m or less
3.2mm
5.8
mm or
les
s
4. Wiring
Warning
Turn the power supply to the instrument off before wiring or checking.
Working or touching the terminal with the power switched on may result in severe injury
or death due to Electric Shock.
•
OUT
: Limit control output
• A1
: A1 output
• EVT
: Event (A2) output
(A2 option)
• EXT.RESET: External reset input
(SM option)
• RS-485
: Serial communication
(C5 option)
•
DC
: DC current, DC voltage
input
• TC
: Thermocouple input
•
RTD
:
Resistance
temperature
detector input
(Fig.
4-1)
Notice
• The terminal block of the JCS-33A is designed to be wired from the left side.
The lead wire must be inserted from the left side of the terminal, and fastened by the terminal
screw.
• Use a thermocouple and compensating lead wire that correspond to the sensor input
specification of this controller.
• Use the 3-wire RTD which corresponds to the input specification of this controller.
• This controller does not have built-in power switch, circuit breaker or fuse. Therefore, it is
necessary to install them in the circuit near the external controller.
(Recommended fuse: Time-lag fuse, rated voltage 250V AC, rated current 2A)
• For a 24V AC/DC power source, do not confuse polarity when using direct current (DC).
• For the OUT (Limit control output terminals 6-7), externally use a relay according to the
capacity of the load to protect the built-in relay contact.
• When wiring, keep input wires (thermocouple, RTD, etc.) away from AC sources or load wires
to avoid external interference.
• Do not apply a commercial power source to the sensor connected to the input terminal nor
allow the power source to come into contact with the sensor.
Lead wire solderless terminal
Use a solderless terminal with an insulation sleeve in which an M3 screw fits as shown below.
The torque is approximately 0.6N•m to 1.0N•m.
Solderless
terminal
Manufacturer Model
Tightening
torque
Nichifu Terminal Industries CO.,LTD.
TMEV1.25Y-3
Y type
Japan Solderless Terminal MFG CO.,LTD.
VD1.25-B3A
0.6N•m
Nichifu Terminal Industries CO.,LTD. TMEV1.25-3
Max.
1.0N•m
Round type
Japan Solderless Terminal MFG CO.,LTD.
V1.25-3
(Fig.
4-2)
1 1
2 2
3
4
5
11
12
13
14
15
6
7
8
9
10
24V AC/DC
POWER SUPPLY
100 to 240V AC
A1
EVT
NO
NO
NO
OUT
A
B
B
3A
250V
AC
EXT.
RESET
YA
YB
SG
RS-485
3A
250V
AC
DC TC RTD