Motor Cable Length; Peak Voltage; Bearing Currents; Parameter Settings Before Use - ABB ACS800 User Manual

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The voltage drop of the sine filter decreases the maximum available torque at the
motor. Therefore, operation above the field weakening point (FWP) and high
overloads are not recommended.

Motor cable length

The cable between the sine filter and the motor is not limited in length. However,
long motor cables cause an additional voltage drop which must be taken into
account in the dimensioning of the motor and the drive.

Peak voltage

The peak phase-to-phase voltage with the sine filter is approximately 1.5 × U
peak phase-to-ground voltage is approximately 2 × U

Bearing currents

The sine filter will reduce circulating-type and shaft grounding-type bearing currents.

Parameter settings before use

The following drive parameter settings should be made before starting up a drive
equipped with a sine filter.

95.04 EX/SIN REQUEST

The parameter must be set to SIN or EX&SIN. For more information, see the
Firmware Manual of the drive.

Output frequency

The sine filter is designed for operation within the frequency range of 0.5 ... 120 Hz.
However, with non-regenerative drives without a brake chopper, it is recommended
that the drive output frequency be less than 1.1 × FWP (field weakening point)
because of possible self-excitation of the motor.
If a brake chopper is used and the maximum frequency exceeds 1.1 × FWP,
parameter 27.06 BC CTRL MODE must be set to COMMON DC.

Ambient conditions

The ambient condition requirements for the ACS800 also apply to the sine filter(s).
See the Hardware Manual of the drive.

Effect on the protective functions of the drive

The sine filter 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.
Sine filters with ACS800 drives
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