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Ecowatt
®
Drive K120 series
C.2 Power supply
Ensure that the voltage class of the VFD is consistent with that of
C.3 Cables
C.3.1 Power cables
The sizes of the input power cables and motor cables must meet the local regulation.
Note: If the conductivity of the shielding layer of the motor cables cannot meet the
requirements, separate PE conductors must be used.
C.3.2 Control cables
All analog control cables and cables used for frequency input must be shielded cables.
Relay cables need to be those with metal braided shield layers.
Keypads need to be connected by using network cables. In complicated electromagnetic
environments, shielded network cables are recommended.
Note:
Analog signals and digital signals cannot use the same cables, and their cables
must be arranged separately.
Check the insulation conditions of the input power cable of a VFD according to the
local regulations before connecting it.
VFD model
K120-0R4G-2
K120-0R7G-2
K120-1R5G-2
K120-2R2G-2
K120-004G-2
Note:
Cables of the sizes recommended for the main circuit can be used in scenarios
where the ambient temperature is lower than 40°C, the wiring distance is shorter
than 100 m, and the current is the rated current.
The terminals (+) and PB are used to connect to braking resistors.
If the control cable and power cable need to be crossed, ensure that the angle
the grid.
Recommended
cable size (mm²)
RST
PE
UVW
1.5
1.5
1.5
1.5
2.5
2.5
2.5
2.5
6
6
Optional peripheral accessories
Connecting cable size
(mm
)
2
RST
P1, (+)
UVW
1–4
1–4
1–4
1–4
1–4
1–4
1–4
1–4
4–10
4–10
-156-
Terminal
Tightening
screw
torque (Nm)
PE
1–4
M3
1–4
M3
1–4
M3
1–4
M3
4–10
M5
0.8
0.8
0.8
0.8
2.3
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