38
6 INSTALLATION AND WIRING
6.3 External Wiring
6.3
External Wiring
The following figure shows the external wiring.
R60TCTRT2TT2
Standard control
*1 Use the shielded compensation lead wire.
*2 Use the shielded cable.
Use the compensation lead wire for the cable of a thermocouple. The shielded cable cannot be used. If the
compensation lead wire is not used, and when the cold junction temperature compensation resistor (1) is
away from the end tip (2) of a thermocouple, the (ambient) temperature (3) difference may lead to a faulty
temperature process value (PV).
L1
L2
L4
COM-
CH1+
CH1-
CH2+
CH2-
CH4+
CH4-
*1
*1
*2
*2
·
·
·
R60TCTRT2TT2
24VDC
Controlled
object
Filter
Filter
Filter
Internal
circuit
Internal
circuit
Internal
circuit
R60TCTRT2TT2(BW)
(1)
(3)
(2)
Содержание MELSEC iQ-R series
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