91
AYK550-UH User’s Manual
Start-Up
2606
SWITCHING FREQ
1, 4, 8 kHz
-
4 kHz
Sets the switching frequency for the drive.
• Higher switching frequencies mean less noise.
Note!
Derate required at 8 kHz
2607
SW FREQ CTRL
0, 1
-
1
The switching frequency may be reduced if the AYK550
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 =
OFF
– The function is disabled.
1 =
ON
– The switching frequency is limited according to the
figure.
2608
SLIP COMP RATIO
0…200%
1
0
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
MOTOR
CTRL
MODE
=
SCALAR
SPEED
.
0 = No slip compensation.
1…200 = Increasing slip compensation. 100% means full slip compensation.
Group 26: Motor Control
Code Description Range
Resolution
Default
S
90 °C
100 °C
ACS5550
4 kHz
8 kHz
Switching frequency limit
Temperature
Summary of Contents for AYK 550
Page 256: ...D1 AYK550 UH User s Manual Appendix D Appendix D Base Drive Drawing 205662 Drawings Fig 1...
Page 257: ...AYK550 UH User s Manual D2 Appendix D Base Drive w Fused Disconnect Drawing 205648 Fig 2...
Page 258: ...D3 AYK550 UH User s Manual Appendix D Base Drive w Non Fused Disconnect Drawing 205647 Fig 3...
