Control Techniques Commander SK User Manual

Introduction Parameter x.00
Parameter
description format
Keypad and
display
CT Modbus
RTU
User
programming
CT Soft Menu 0
Advanced parameter
descriptions
Menu 5
Commander SK Advanced User Guide 65
Issue Number: 2 www.controltechniques.com
Selects the units for the displayed speed.
0: Fr Drive output in Hz (Pr 2.01)
1: SP Motor speed in RPM (Pr 5.04)
2: Cd Machine speed in customer defined units (Scaled from Pr 5.04)
See Parameter scaling Pr 11.21 on page 115 for information on how to scale the rpm (Pr 5.04) when customer defined units is selected.
0: Auto-switching frequency change enabled
1: Auto-switching frequency change disabled
The drive thermal protection scheme (see Pr 5.18 on page 63) reduces the switching frequency automatically when necessary to prevent the drive
from overheating. It is possible to disable this feature by setting this bit parameter to a 1. If the feature is disabled the drive will trip immediately on
O.ht1 when the IGBT temperature gets too high.
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 = 1).
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.
5.34 Speed display units
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 111
Range 0 (Fr), 1 (SP), 2 (Cd)
Default 0 (Fr)
Update rate Background
5.35 Disable auto-switching frequency change
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Range 0 or 1
Default 1
Update rate Background
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
1 111 1
Range 0 or 3
Update rate Background write
Value String Switching frequency (kHz)
03 3
16 6
212 12
318 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
1 111 11
Range 0 to 999
Update rate Background read
NOTE

Control Techniques Commander SK Specifications

General

Brand	Control Techniques
Model	Commander SK
Category	Inverter
Language	English