WEG CFW501 V1.8X User Manual

V/f Scalar Control
9-2 | CFW501
9
Output current
limitation
Power
supply
f*
f
r
f
slip
m
lxR
f
o
P0002
m
P0007
f
Ud
f
Ud
U
d
U
d
U
d
U
d
f
V
V/f curve
f
t
m
PWM
Space Vector
Modulation
Direction
of rotation
PWM
I
o
I
o
I
o
i
V
, i
W
i
V
, i
W
i
V
, i
W
I
a
Zero
Calculation of I
a
Calculation of I
o
Hold
P0135
P0151
P0151
P0152
P0004
P0151
P0003
P0 011
P0138
P0137
P0134
P0142
P0143 P0144
P0136
P0147
P0146
P0145
P0133
P0100-P0104
Ramp hold P0150 = 0
OR P0150 = 2
DC link regulation
P0202 = 0 (V/f control)
Acelerate ramp
P0150 = 1 OR P0150 = 3
+
+
+
+
+
+
MI
3φ
Figure 9.1: Block diagram of V/f scale control

WEG CFW501 V1.8X Specifications

General

Brand	WEG
Model	CFW501 V1.8X
Category	Inverter
Language	English