SPI9000 Inverter Unit FI9 – FI14 User Manual

September 2006

Cable Installation and the UL Standards

To meet the UL (Underwriters Laboratories) regulations, a UL approved copper cable with a minimum heat-resistance of +60/75°C must be used.

The tightening torques of the terminals are given below in Table 3-9.

Table 3-9: Terminal Tightening Torques

 

 

 

 

 

Tightening Torque in

Nominal Current

Voltage

Frame

in-lb (Nm)

 

 

 

 

 

 

 

 

 

 

 

 

140

245

380 – 500V

FI9

340 (40)

100

170

525 – 690V

 

 

 

 

 

 

 

 

300

460

380 – 500V

FI10

340 (40)

208

325

525 – 690V

 

 

 

 

 

 

 

 

520

920

380 – 500V

FI12

340 (40)

385

650

525 – 690V

 

 

 

 

 

 

 

1030

– 1300

380 – 500V

FI13

340 (40)

920

– 1030

525 – 690V

 

 

 

 

 

 

 

1600

– 2300

380 – 500V

FI14

340 (40)

1300

– 1900

525 – 690V

 

 

 

 

 

 

 

 

Tightening torque of terminal connection to the isolative base.

Note: Apply counter torque to the nut on the other side of the terminal when tightening/ loosening the terminal screw in order to avoid damage to the terminal.

Cable and Motor Insulation Checks

1.Motor cable insulation checks

Disconnect the motor cable from terminals U, V and W of the inverter and from the motor. Measure the insulation resistance of the motor cable between each phase conductor as well as between each phase conductor and the protective ground conductor.

The insulation resistance must be >1MΩ.

2.DC supply cable insulation checks

Disconnect the DC supply cable from terminals B- and B+ of the inverter and from DC supply. Measure the insulation resistance between each conductor and ground.

The insulation resistance must be >1MΩ.

3.Motor insulation checks

Disconnect the motor cable from the motor and open the bridging connections in the motor connection box. Measure the insulation resistance of each motor winding. The measurement voltage must equal at least the motor nominal voltage but not exceed 1,000V.

The insulation resistance must be >1MΩ.

MN04004002E

For more information visit: www.EatonElectrical.com

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Eaton Electrical SPI9000 Cable Installation and the UL Standards, Cable and Motor Insulation Checks, Tightening Torque

SPI9000 specifications

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