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39
3)
Applications requiring high starting torque
50 Hz
60 Hz
Increasing the voltage of the V/f pattern increases motor torque, but an excessive
increase may cause motor overexcitation, overheating or excessive vibration.
NOTE: Voltages shown are for 230V motors; for other motor voltages, multiply all
voltage (V) values by (Vmtr/230). i.e., for a 460V motor, multiply by 460/230 = 2.
V
f
230
60
1.5
18
23
3
V
f
230
50
1.3
14
23
2.2
Constant Setting
n24
50.0
n25
230.0
n26
50.0
n27
2.2
n28
23.0
n29
1.3
n30
14.0
Constant Setting
n24
60.0
n25
230.0
n26
60.0
n27
3.0
n28
23.0
n29
1.5
n30
18.0
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