Menu 5
Commander SK Advanced User Guide
83
Issue Number: 9 www.controltechniques.com
Pr
5.37
shows the actual switching frequency used by the inverter. The maximum switching frequency is set with Pr
5.18
, but this may be reduced by
the drive if automatic switching frequency changes are allowed (Pr
5.35
= OFF).
The 18kHz switching frequency is not available on Commander SK size B and C, 400V units, Commander SK size D or Commander SK size 2 to 6.
Pr
5.50
is not visible from the keypad and holds the value of the security entered to allow parameters to be edited when security is enabled.
5.36
Unused parameter
5.37
Actual switching frequency
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
1
1
Range
3 to 18kHz
Update rate
Background write
Value
String
Switching frequency (kHz)
0
3
3
1
6
6
2
12
12
3
18
18
5.38 to 5.49
Unused parameters
5.50
Security unlock
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
1
1
1
Range
0 to 999
Update rate
Background read
NOTE
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