WEG CFW-09 - Page 130

131
CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
To set Parameter 138:

Run the motor without load up to approximately half of the
application top speed;

Measure the actual motor or equipment speed;

Apply load;

Increase
P138
until the speed reaches its no-load value.
P139
0.00 to 16.00
Output Current Filter
[ 1.00 ]
[only for P202 = 0, 1
0.01 s
or 2 (for V/F Control)]
Adjusts the time constant of the active current filter.
It is used in the Automatic Torque Boost and Slip Compensation
functions. Refer to figures 6.7 and 6.8.
Adjuststhe responsetime oftheslipcompensationand automatic torque
boost. Refer to figures 6.6 and 6.8.
Range
[Factory Setting]
Parameter
Unit
Description / Notes
Figure 6.9
- V/F curve with slip compensation
This parame-
ter is shown on the
display(s)onlywhen
P202 = 0, 1, 2
(V/F Control) or 5
(VVW)
Output Voltage
Vnom
Frequency
(Function
to motor
load)
Values of P138 < 0.0 are used in special applications, where the
reduction of the output speed is desired as function of the motor current
increase. Ex.: load sharing between two motor/drive sets.
Nnom
P140
0.0 to 10.0
Dwell Time at Start
[ 0.0 ]
0.1 s
P141
0 to 300
Dwell Speed at Start
[ 90 ]
1 rpm
Assist during high torque starts by allowing the motor to establish the
flux before starting to accelerate the load.
This parame-
ter is shown on the
display(s)onlywhen
P202 = 0, 1, 2
(V/F Control) or 5
(VVW)