Cable Type; Cable Between Drive And Transformer Primary; Cable Between Transformer Secondary And Motor; Effect On The Protective Functions Of The Drive - ABB ACS800 User Manual

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Cable type

Cable between drive and transformer primary

The cabling between the drive and the step-up transformer is the normal motor cable
type. Recommendations are given in the Hardware Manual of the drive.

Cable between transformer secondary and motor

The cable is to be chosen according to the application. Unshielded cable can be
used.

Effect on the protective functions of the drive

The sine filter, step-up transformer and/or long motor cables may cause impairments
in the protective functions of the drive such as the overcurrent, short circuit, and
motor phase loss protections. See the Firmware Manual for more information on
these protections.

Earth (Ground) fault protection (Parameter 30.17)

Note that this function does not protect the secondary side of the step-up
transformer. Any external device installed for this purpose by the customer can be
connected to a digital input of the drive. See
30.03)

External fault function (Parameter 30.03)

Signals from protective devices installed by the customer can be connected to RMIO
(Motor Control and I/O board) digital inputs DI1 ... DI6 using this parameter.
Appendix – Step-up applications
below.
External fault function (Parameter