Common Precautions On Terminals For Control Circuit; Precautions On Wiring; Wire Size And Tightening Torque For Control Circuit Terminal - Panasonic VF200 Instruction Manual

3. Wiring

3.4.2 Common Precautions on Terminals for Control Circuit

■

Precautions on Wiring

·For wiring of terminals of control circuit, strip specified length of insulation
coating before connecting.
·Loosen the terminal screws and insert the wires from bottom of the terminal
block, and tighten the screws to specified tightening torque.
·Twist the strands of stripped wires, avoiding length variance.
Also, do not solder them.
·Any loose connection could cause wire to come off and lead to malfunction.
Also, over-tightening could cause short-circuit due to screws and the unit
broken, thus lead to malfunction.
·Use shielded cables for all control signal lines and separate them from power
lines or high-voltage circuits (20 cm or more).
·Wiring length of control signal lines should be within 30 m.
·Since input signals of control circuit are feeble, use dedicated terminals for
feeble signals to avoid poor contact during contact input.

■ Wire Size and Tightening Torque for Control Circuit Terminal

Terminal
Screw size
symbol
A, B, C
①～
·Screwdriver: Small-size ㊀ screwdriver
(Thickness of the edge: 0.4 mm/ Width of the edge: 2.5 mm)
Tightening torque
N·m
M3
0.5 to 0.6
M2 0.22 to 0.25
Wire size
2
0.25 to 0.75 mm
(AWG24 to AWG18)
2
0.25～0.75 mm
(AWG24 to AWG18)
·Removed length of
insulation
Stripping
length of wire
6 mm
5 mm