Delta VFD-E Series User Manual

C-2
C.1 Capacity Formulas
1. When one AC motor drive operates one motor
The starting capacity should be less than 1.5x rated capacity of AC motor drive
The starting capacity=
)(_____5.1
375cos973
2
kVAdrivemotorACofcapacitythe
t
NGD
T
Nk
A
L













2. When one AC motor drive operates more than one motor
2.1 The starting capacity should be less than the rated capacity of AC motor drive

Acceleration time
≦
60 seconds
The starting capacity=
 
 
 
)(_____5.11
cos
111 kVAdrivemotorACofcapacitythek
n
n
Pknn
Nk
sCss
T
s
T 















Acceleration time
≧
60 seconds
The starting capacity=
 
 
 
)(_____1
cos
111 kVAdrivemotorACofcapacitythek
n
n
Pknn
Nk
sCss
T
s
T 














2.2 The current should be less than the rated current of AC motor drive(A)

Acceleration time
≦
60 seconds
)(______5.111 AdrivemotorACofcurrentratedthek
n
n
In SM
T
S
T 














Acceleration time
≧
60 seconds
)(______11 AdrivemotorACofcurrentratedthek
n
n
In SM
T
S
T 














Delta VFD-E Series Specifications

General

Brand	Delta
Model	VFD-E Series
Category	Media Converter
Language	English