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9
4. Wiring
Warning
Turn the power supply to the instrument off before wiring or checking.
Working on or touching the terminal with the power switched on may result in severe injury
or death due to electrical shock.
4.1 Terminal Arrangement
(Fig. 4-1)
•
POWER SUPPLY:
For a 24V AC/DC power source, do not confuse polarity when using direct
current
(DC).
•
EV1:
Alarm 1 output
•
O2/EV2: Control output OUT2 (D
option), Alarm 2 output (A2 option) or Heater burnout alarm
output (W, W3 option)
•
O1:
Control output OUT1
•
DC:
DC voltage, current
inputs
(For DC voltage input,
+ side terminal number differs depending on the voltage input.)
(+) side input terminal number of 0 to 5V DC, 1 to 5V DC, 0 to 10V DC: 9
(+) side input terminal number of 0 to 1V DC: 10
•
TC:
Thermocouple
input
•
RTD:
Resistance
temperature
detector
input
•
CT1: CT input 1 (W, W3 option)
•
CT2: CT input 2 (W3 option)
•
DI:
Contact input (SM option)
•
RS-485 : Serial communication RS-485 (C5 option)
4.2
Lead Wire Solderless Terminal
Use a solderless terminal with an insulation sleeve in which an M3 screw fits as shown below.
The torque should be 0.63N•m.
Solderless
terminal
Manufacturer Model
Tightening
torque
Y-type
Nichifu Terminal Industries CO.,LTD.
TMEV1.25Y-3
0.63N•m
Japan Solderless Terminal MFG CO.,LTD.
VD1.25-B3A
Ring-type
Nichifu Terminal Industries CO.,LTD.
TMEV 1.25-3
Japan Solderless Terminal MFG CO.,LTD.
V1.25-3
5.8mm o
r less
(Fig. 4.2-1)
5.8mm o
r less
3.2mm
3.2mm
POWER SUPPLY
24V AC/DC
+
-
100 to 240V AC
1
1
2
2
13
14
15
16
17
18
3
4
5
6
7
8
9
10
11
12
3A
250V
AC
3A
250V
AC
+
-
EV1
O2/EV2
DI2
DI1
COM
YA(-)
YB(+)
SG
CT1
CT2
DI RS-485
NO
NO
3A
250V
AC
O1
NO
+
-
+
-
+
-
+
-
A
B
B
DC
0 to 1V
4 to 20mA
0 to 20mA
TC RTD
DC
0 to 5V
1 to 5V
0 to 10V