Omron SMARTSTEP 2 SERIES User Manual page 156

4-2 Wiring
Item
Power supply capacity
Main circuit power
supply input (L1,
L2)
External
Regeneration
Resistor
connection (+, −)
4
Servomotor
connection
terminal (U, V,
*2
W, )
Frame ground
No-fuse breaker or fuse
*3
capacity
*1. Values in parentheses ( ) are for using single-phase 200 V.
*2. Connect an OMRON Servomotor Power Cable to the Servomotor connection terminals.
*3. Use a no fuse breaker or a surge withstand fuse. The maximum inrush current is 20 A.
Wire Size and Allowable Current (Reference)
The following table shows the allowable current when there are three power supply wires.
Use a current below these specified values.
600-V Heat-resistant Vinyl Wire (HIV)
AWG size
4-17
Unit
kVA
Rated
A(rms)
current
Wire size
Wire size
Rated
A(rms)
current
Maximum
momen-
A(rms)
tary
current
Wire size
Wire size
Screw size ---
Torque N·m
A(rms)
Nominal
Configura-
cross-
sectional
(wires/mm
2
area (mm )
20 0.5 19/0.18
--- 0.75 30/0.18
18 0.9 37/0.18
16 1.25 50/0.18
14 2.0
R7D-BP01H R7D-BP02HH
0.27
0.35
*1
(0.3)
0.7
1.6
*1
(1.5)
1.0 1.6
3.3 4.9
AWG14 min.
3
Allowable current (A) for ambient
Conductive
tion resistance
2
) (Ω/km)
30°C
39.5
26.0
24.4
15.6
7/0.6 9.53
R7D-BP02H R7D-BP04H
0.42
(0.77)
1.1
(3.5)
AWG18
AWG18
1.6
4.9
AWG18
M4
1.2 to 1.4
2
temperature
40°C 50°C
6.6 5.6 4.5
8.8 7.0 5.5
9.0 7.7 6.0
12.0 11.0 8.5
23 20 16
0.69
*1
1.8
*1
2.5
7.8
5
*1
(7)