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3.9 Cable specification
Determine the cable size for the main circuit. The line voltage drop
should be within 2% of the rated voltage. The line voltage drop is
calculated as below:
3
Line voltage drop(V) =
× cable resistance(Ω/km) × wiring length (m)
× current (A) × 10
Table 3.9 Cable size
Circuit Model Terminal
Tightening
Crimping
Screw
Torque Nm
Terminal
20P4
M3.5
0.8-1.0
20P7
M3.5
0.8-1.0
21P5
M4
1.2-1.5
22P2
M4
1.2-1.5
Main
23P7
M4
1.2-1.5
Power
(R/L1,
20P4S
M3.5
0.8-1.0
S/L2,
20P7S
M4
1.2-1.5
T/L3,
+1,+2,
21P5S
M4
1.2-1.5
P/B,N
U/T1,
22P2S
M4
1.2-1.5
V/T2,
W/T3)
40P4
M4
1.2-1.5
40P7
M4
1.2-1.5
41P5
M4
1.2-1.5
42P2
M4
1.2-1.5
43P7
M4
1.2-1.5
Control
All
M2
0.22-0.25
Note : The wire size is set for copper wires at 75¡ É
3.Wiring
3-21
-3
Cable Size
Kind of
Cable
mm
2
AWG
2-3.5
2
14
2-3.5
2
14
2-4
3.5
12
2-4
3.5
12
5.5-4
5.5
10
2-3.5
2
14
Power cable
2-4
3.5
12
(600V Vinyl-
sheathed wire
2-4
3.5
12
or equivalent)
5.5-4
5.5
10
2-4
2
14
2-4
2
14
2-4
2
14
2-4
2
14
2-4
2
14
Shielded
-
0.5 ~ 1.25
20-16
twisted-pair
MOSCON-E7 User's Manual
3-22
3.10 Wiring check
!
CAUTION
• After wiring has been complete, check the following. Do not
perform a buzzer check on control circuit.
• Check if all wiring is correct.
Especially check if the power supply is connected the U/T1, V/T2,
W/T3 terminal.
• Check if any wire clippings, screws or other foreign material are left.
• Check if all screws are tight.
• Check if the load status is good.
• Check if any wire ends are contacting other terminals.
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