WEG CFW100 Programming Manual page 74

Functions Common to All the Control Modes
P149 – Compensation of the DC Link Voltage
Adjustable
Range:
Properties:
Description:
It enables the use of Compensation of the DC link.
P150 – Type DC V/f Link Regulator
Adjustable
Range:
Properties:
Description:
P150 configures the behavior of the ramp for the limitation functions of the DC Link Voltage and Current Limitation.
In those cases, the ramp ignores the reference and takes an action of accelerating (accel), decelerating (decel)
or freezing (hold) the normal path of the ramp. That occurs because of the limit pre-defined in P151 and P135
for the DC Link (Ud) Limitation and for Current (LC) Limitation, respectively.
In order to disable the DC link limitation (Ud) and/or the current limitation, you must set P151 > 410 V and
P135 > 2xInom, respectively.
P151 – DC Link Regulation Level
Adjustable
Range:
Properties:
Description:
Voltage level to activate the DC link voltage regulation. In order to disable the DC link limitation (Ud), you must
set parameter P151 > 410 V.
Figure 11.2 on page 11-4
11
and Figure 11.4 on page 11-5
11-4 | CFW100
0 = Inactive
1 = Active
cfg
0 = hold_Ud and decel_LC
1 = accel_Ud and decel_LC
2 = hold_Ud and hold_LC
3 = accel_Ud and hold_LC
cfg
325 to 460 V
shows the block diagram of the actuation of the limitation.
show the example chart.
Reference
P001
error
≥ 0
+
P004
-
P151
Figure 11.2: Block diagram DC link voltage limitation
RAMP
P100-P104
Output frequency
t
hold
Return Advance
Factory
1
Setting:
Factory 0
Setting:
Factory
380 V
Setting:
Figure 11.3 on page 11-5
P002