WEG CFW-09 User Manual page 128

[Factory Setting]
Parameter
P136
Manual Torque
Boost
For V/F Control
(P202 = 0, 1 or 2)
Range
Unit Description / Notes
Compensates for the voltage drop on the motor stator resistance at low
0 to 9
frequencies and increases the inverter output voltage in order to maintain
[ 1 ]
a constant torque in V/F operation.
1
Always set P136 to the lowest value that permits the motor to start
satisfactorily. If the value is higher than required, an inverter overcurrent
(E00 or E05) may occur due to high motor currents at low frequencies.
CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
Output Voltage
Nominal
P136 = 9
1/2 Nominal
P136 = 0
0
30 Hz
Figure 6.4 - P202 = 0 - V/F 60 Hz curve
Output Voltage
Nominal
P136 = 9
1/2
Nominal
P136 = 0
0
25 Hz
Figure 6.5 - P202 = 1 - V/F 50 Hz curve
Frequency
60 Hz
Frequency
50 Hz
129