ABB ACS550-02 User Manual page 108

106
Code Description
2607 SW FREQ CTRL
The switching frequency may be reduced if the ACS550 internal
temperature rises above 90 °C. See Figure. This function allows
the highest possible switching frequency to be used based on
operating conditions. Higher switching frequency results in lower
acoustic noise.
0 = – The function is disabled.
OFF
1 = – The switching frequency is limited according to the
ON
figure.
2608 SLIP COMP RATIO
Sets gain for slip compensation (in %).
• A squirrel-cage motor slips under load. Increasing the frequency as the motor torque increases compensates for
the slip.
• Requires parameter 9904
0 = No slip compensation.
1...200 = Increasing slip compensation. 100% means full slip compensation.
Start-Up
= 3 (
MOTOR CTRL MODE SCALAR
Switching frequency limit
8 kHz
4 kHz
90 °C
: ).
SPEED
ACS5550
Temperature
100 °C