N3 Drive Operations Manual
Power Terminal Designations & Ratings (TM1) Cont. & Inverter Wiring 11
7.2 Power Terminal Block TM1 Electrical Ratings and Tightening Torques
Table7.1 Electrical Ratings and Tightening Torques
8.0 Inverter Wiring
8.1 Input / Output Power Wiring Connections (Terminal TM1)
Table 8.1 Input / Output Power Wire Size vs Horsepower
* Wire size shown is based on maximum terminal size. Please consult the NEC or local
codes for the proper size to be used.
Use only copper wires. Proper diameter wire should be based on ratings at +105
°
C.
The minimum voltage rating of wiring is: 300V for 230VAC and 600V for 460VAC.
For safety reasons do not use under sized wiring.
8.2 Input / Output Power Wiring Noise Suppression
Electrical noise or EMI can be generated from the input power lines and or the output power leads to the motor.
This can interfere with the function of surrounding equipment as well as the inverter’s own control wiring. Fig. 8.2
shows an example of filters and shielding schemes to help minimize any radiated EMI.
N3
IM
MCCB
Power
Source
Noise
Filter
Grounded
Metal Conduit
Noise
Filter
Grounded Metal
Enclosure
Signal Cable
11.8 in. / 30 cm
(Separate signal wiring from power leads
by a minimum of 30 cm / 11.8 in..)
Fig. 8.2 Input / Output Power Wiring Noise Suppression
Cont.