Appendix C
165
VFD model
Recommended cable size(mm
2
)
Screw
R,S,T
U,V,W
PE
P1 (+)
PB (+) (-)
Terminal
screw
size
Tightening
torque (Nm)
220G/250P-4
2×95/
2×95
95/95
2×95/
2×95
2×95/
2×95
M12
31~40
250G/280P-4
2×95/
2×150
95/
150
2×95/
2×150
2×95/
2×150
M12
31~40
280G/315P-4
2×150/
2×150
150/
150
2×150/
2×150
2×150/
2×150
M12
31~40
315G/355P-4
2×150/
2×185
150/
185
2×150/
2×185
2×150/
2×185
M12
31~40
355G/400P-4
2×185/
3×150
185/
2×120
2×185/
3×150
2×185/
3×150
M12
31~40
400G-4
3×150
2×120
3×150
3×150
M12
31~40
450G-4
3×185
2×150
3×185
3×185
M12
31~40
500G-4
3×185
2×150
3×185
3×185
M12
31~40
Note:
1. The forward slash "/" is used to distinguish data about G-type VFDs from data about P-type
VFDs.
2. It is appropriate to use the recommended cable size under 40°C and rated current. The wiring
distance should be no more than 100m.
3. Terminals P1, (+), PB and (-) connects the DC reactor options and parts.
C.4.3 Routing the cables
Route the motor cable away from other cable routes. Motor cables of several drives can be run in
parallel installed next to each other. It is recommended that the motor cable, input power cable and
control cables are installed on separate trays. Avoid long parallel runs of motor cables with other
cables to decrease electromagnetic interference caused by the rapid changes in the drive output
voltage.
Where control cables must cross power cables make sure that they are arranged at an angle as
near to 90 degrees as possible.
The cable trays must have good electrical bonding to each other and to the grounding electrodes.
Aluminum tray systems can be used to improve local equalizing of potential.
A figure of the cable routing is shown below.