Wiring - Mitsubishi alpha 2 Hardware Manual

α
2 Simple Application Controllers
13.4.2

Wiring

Caution
• Please use an isolated Power supply and turn off the Power before any wiring operation
is performed.
• Input and Output cables should not be run through the same multi core cable or share
the same wire.
• Input cable (from sensor to AL2-2TC-ADP) must be less than 10m (32'81'') and the
output cable length must be less than 3m (9'10").
• The wire should be used as a single cable or the multi core wires (can be used with a
crimp terminal) should be carefully twisted together.
Do not connect a soldered wire end to the AL2-2TC-ADP.
• To avoid damaging the wire, tighten to a torque of 0.5 - 0.6 N⋅m.
• The AL2-2TC-ADP should be adjusted for offset and gain purposes, therefore, turn off
the Power before performing the adjustment wiring.
Figure 13.4:
24V
DC
0.5A
24+
+15V
AL2-2TC-
ADP
L1+
K-type
Thermocouple
24- V1+ V1- V2+ V2-
3kΩ 3kΩ
Temperature
compensation
circuit
L1- SLD L2+ L2- SLD
Grounding Grounding
resistance resistance
100Ω or 100Ω or
less less
K-type
Thermocouple
1.0A
+ - (A) (B) 1 2
AL2-14MR-D/
AL2-24MR-D
AL2-2TC-ADP 13
ENG
ENG-77