SSD 605C Product Manual - page 36

3-14  

Installing the Inverter

605C Frequency Inverter

Line Chokes (input)

Line chokes may be used to reduce the harmonic content of the supply current where this a

particular requirement of the application or where greater protection from mains borne transients

is required. Please refer to SSD Drives for the selection of a suitable line choke.

AC Motor Choke (output)

Maximum Motor dv/dt = 10,000V/

µs. This can be reduced by adding a motor choke in series

with the motor.

Installations with longer than specified motor cable runs may suffer from nuisance overcurrent

trips, refer to Chapter 11: “Technical Specifications” - Cabling Requirements for maximum

cable lengths. A choke may be fitted in the inverter output to limit capacitive current. Screened

cable has a higher capacitance and may cause problems in shorter runs.

Note:  Motor chokes must be fitted for 380-460V and 500V units with screened cable runs in

excess of 50m; limit the switching frequency to 3kHz in these applications. Refer to

Chapter 6: “Programming Your Application” - PATTERN GEN.

Contact SSD Drives for further information.