Mitsubishi Electric A800 Series Instruction Manual page 74

2.3
Control circuit terminal
 Wiring precautions
• It is recommended to use a cable of 0.3 to 0.75 mm
• The wiring length should be 30 m (200 m for terminal FM) at the maximum.
• Use two or more parallel micro-signal contacts or twin contacts to prevent contact faults when using contact inputs since
the control circuit input signals are micro-currents.
• To suppress EMI, use shielded or twisted cables for the control circuit terminals and run them away from the main and
power circuits (including the 200 V relay sequence circuit). For the cables connected to the control circuit terminals,
connect their shields to the common terminal of the connected control circuit terminal. When connecting an external
power supply to terminal PC, however, connect the shield of the power supply cable to the negative side of the external power supply. Do not directly earth
(ground) the shield to the enclosure, etc.
• Always apply a voltage to the fault output terminals (A1, B1, C1, A2, B2, C2) via a relay coil, lamp, etc.
• Do not connect any terminal SD on the inverter and the 0 V terminal of the external power supply (when the sink logic is selected).
• Separate the wiring of the control circuit away from the wiring of the main circuit.
Make cuts in rubber bush of the inverter side and lead the wires through.
Rubber bush
（viewed from inside）
Make cuts along the lines on
the inside with a cutter knife
 Wiring method
• Blade terminals commercially available (as of April 2019)
2
Cable gauge (mm )
With insulation
sleeve
0.3 AI 0,34-10TQ
0.5 AI 0,5-10WH
0.75 AI 0,75-10GY
1 AI 1-10RD
1.25, 1.5 AI 1,5-10BK
0.75 (two-wire product) AI-TWIN 2×0,75-10GY

A ferrule terminal with an insulation sleeve compatible with the MTW wire which has a thick wire insulation.

Applicable for the terminal A1, B1, C1, A2, B2 and C2 only.
Blade terminal product
2
Cable gauge (mm )
0.3 to 0.75 BT 0.75-11
2
for connection to the control circuit terminals.
Ferrule terminal model
Without insulation
sleeve
―
―
A 0,75-10
A 1-10
A 1,5-10
―
Insulation cap
number product number
VC 0.75
Manufacturer
For UL wire

―
AI 0,5-10WH-GB
AI 0,75-10GY-GB
Phoenix Contact Co., Ltd.
AI 1-10RD/1000GB
AI 1,5-10BK/1000GB

―
Manufacturer
product number
NICHIFU Co., Ltd. NH 69
Control circuit terminal
Micro signal contacts
＜Wiring example＞
Crimping tool
name
CRIMPFOX 6
Crimping tool
WIRING
Twin contacts
21