Mitsubishi Electric FR-A8AX Instruction Manual download pdf (Page 15)

INSTALLATION AND WIRING

(3) Loosen the terminal screw and insert the cable into the terminal.

NOTE

• Undertightening can cause cable disconnection or malfunction. Overtightening can cause a short circuit or malfunction

due to damage to the screw or unit.

• When wiring cables to the inverter's RS-485 terminals while a plug-in option is mounted, take caution not to let the

cables touch the circuit board of the option or of the inverter. Otherwise, electromagnetic noises may cause

malfunctions.

• When one position detector is shared between FR-A8AP and CNC (computerized numerical controller), its output

signal should be connected as shown below. In this case, the wiring length between FR-A8AP and CNC should be as

short as possible, within 5 m.

Screw Size Tightening Torque Cable Size Screwdriver

0.22 N

m to 0.25 Nm

0.3 mm

to 0.75 mm

Small flat-blade screwdriver

(Tip thickness: 0.4 mm/tip width: 2.5 mm )

CAUTION

 Do not use empty terminals as junction terminals because they are used in the option unit. If they are used as the junction terminals, the option unit

may be damaged.

 After wiring, wire offcuts must not be left in the inverter. They may cause a fault, failure or malfunction.

Maximum 5 m

(two parallel cables)

CNC

Inverter

(FR-A8AP)

Position detector

Encoder

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 33 34

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Mitsubishi Electric FR-A8AX Instruction Manual Page 15

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