Chapter 1: Getting Started
Page 1–7
DuRApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
seleCTing The proper drive raTing (ConTinued)
Carrier frequenCy deraTing (ConTinued)
These Variable Torque (VT) and Constant Torque (CT) derating curves are for drives with 3-phase
input power. The 230VAC, CT curves also apply equally whether the drive is supplied with
3-phase or 1-phase input power.
230v variable Torque Carrier frequenCy deraTing
For 230V Variable Torque
VT/CT Duty Selection P6.34 = 0
Method of Derating P6.33 = 0, 1, or 2
50°C UL Open Type
40°C UL Type 1 or Open Type side-by-side
100
110
90
80
70
60
468101214
579111
F
(kHz)
Ratio(%)
GS4-21P0 – GS4-2015
GS4-2020 – GS4-2050
GS4-2060 – GS4-2100
For 230V Variable Torque
VT/CT Duty Selection P6.34 = 0
Method of Derating P6.33 = 0 or 2
40°C UL Open Type
30°C UL Type 1 or Open Type side-by-side
100
110
90
80
70
60
468101214
579111
F
(kHz)
Ratio(%)
GS4-21P0 – GS4-2015
GS4-2020 – GS4-2050
GS4-2060 – GS4-2100
460v variable Torque Carrier frequenCy deraTing
For 460V Variable Torque
VT/CT Duty Selection P6.34 = 0
Method of Derating P6.33 = 0, 1, or 2
50°C UL Open Type
40°C UL Type 1 or Open Type side-by-side
100
110
90
80
70
60
468101214
579111
F
(kHz)
Ratio(%)
GS4-41P0 – GS4-4020
GS4-4025 – GS4-4075
GS4-4100 – GS4-4300
For 460V Variable Torque
VT/CT Duty Selection P6.34 = 0
Method of Derating P6.33 = 0 or 2
40°C UL Open Type
30°C UL Type 1 or Open Type side-by-side
100
110
90
80
70
60
468101214
579111
F
(kHz)
Ratio(%)
GS4-41P0 – GS4-4020
GS4-4025 – GS4-4075
GS4-4100 – GS4-4300
Reference Chapter 4, Parameters, for complete descriptions of parameters P6.33 and P6.34.