Terminal wire arrangement
INVERTER INTRODUCTION 26
3.7.2 Main circuit wiring and terminal specification
Inverter model
Terminal screw
specifications
Tightening
torque (Kgf.cm)
Recommended wiring specification
(mm2)
Recommended wiring specification
(AWG)
R、S、T
U、V、W
Grounding
Cable
R、S、T
U、V、W Grounding Cable
SL3-021-0.4K
M2.5
2.5-3.5
2.5
2.5
2.5
14
14
14
SL3-021-0.75K
2.5
2.5
2.5
14
14
14
SL3-021-1.5K
2.5
2.5
2.5
14
14
14
SL3-021-2.2K
M3
4-6
4
4
4
12
12
12
SL3-043-0.4K
1.5
1.5
1.5
16
16
16
SL3-043-0.75K
2.5
2.5
2.5
14
14
14
SL3-043-1.5K
2.5
2.5
2.5
14
14
14
SL3-043-2.2K
2.5
2.5
2.5
14
14
14
Note:1. Do not connect power wire to motor terminals (U/T1)(V/T2)(W/T3) on inverter, otherwise it will cause damage.
2. Do not add phase capacitor, surge absorber or magnetic contactor on the output side of the inverter.
U/T1
V/T2
W/T3
Inverter
Electromagnetic
contactor
Motor
Phase
capacitor
3. Do not use "magnetic contactor" or "no fuse switch" to start and stop the motor.
4. Please do grounding for the inverter and motor to avoid electric shock.
5. For specifications of no-fuse breaker and magnetic contactor, please refer to section 3.6.2.
6. If the distance between the inverter and motor is long, please use thick wires, make sure wire voltage drop is
under 2V (wire length below 500 meters).
7. Use "insulation crimp sleeve " for power supply side and load side connection.
3.7.3 Ground
For safety and to reduce noise, the grounding
of the inverter must be well grounded. To avoid electric shocks and
fire accident, the external metal ground wire of the equipment should be short and thick, and should be connected to
specific grounding terminals on the inverter. If several inverters are placed together, all inverters must be connected to
the common ground. Please refer to the following diagrams and ensure that no loop is formed between grounding
terminals.
Best
Acceptable
Wrong
3.7.4
RFI filter
SL3 series inverters are equipped with built-in RFI filters. These filters are effective in reducing electromagnetic
interference, but to meet CE standard, please refer to section 3.5.4 for installation and wiring.
Summary of Contents for SL3 Series
Page 2: ......
Page 107: ......
Page 200: ...Appendix 4 Optional equipment Appendix 196 ...
Page 210: ...Appendix 5 European Specification Compatibility Description Appendix 206 ...
