WEG CFW-09 User Manual page 130

[Factory Setting]
Parameter
P139
Output Current Filter
[only for P202 = 0, 1
or 2 (for V/F Control)]
This parame-
ter is shown on the
display(s) only when
P202 = 0, 1, 2
(V/F Control) or 5
(VVW)
P140
Dwell Time at Start
P141
Dwell Speed at Start
This parame-
ter is shown on the
display(s) only when
P202 = 0, 1, 2
(V/F Control) or 5
(VVW)
Range
Unit Description / Notes
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.
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.
Adjusts the time constant of the active current filter.
0.00 to 16.00
[ 1.00 ]
It is used in the Automatic Torque Boost and Slip Compensation
0.01 s
functions. Refer to figures 6.7 and 6.8.
Adjusts the response time of the slip compensation and automatic torque
boost. Refer to figures 6.6 and 6.8.
Assist during high torque starts by allowing the motor to establish the
0.0 to 10.0
flux before starting to accelerate the load.
[ 0.0 ]
0.1 s
0 to 300
[ 90 ]
1 rpm
CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
Output Voltage
Vnom
(Function
to motor
load)
Figure 6.9 - V/F curve with slip compensation
Frequency
Nnom
131