2 Installation and cabling
34VFD700 AC Drive Getting Started Guide
Digital input
The common port of DIcould be programmed as 0V or 24V, the default is 0V. The
parameter P09.21 can control the selection. When
P09.21=0, common is 0V
P09.21=1, common is 24V.
Different connection types of DI and common are as showed in table 2-17.
Table 2-18 Digital input connection examples
P09.21
Connection
P09.21=0 (Source)
P09.21=1 (Sink)
S
w
it
ch
t
y
p
e
B
y
in
n
er
2
4
V
P09.21=0
0V
DI
DI
+24V
Internal
circuit
HD700
K1
K2
24V
P09.21=1
0V
DI
DI
Internal
circuit
HD700
24V
K1
K2
+24V
B
y
o
u
te
r
su
p
p
ly
_
P09.21=1
0V
DI
DI
Internal
circuit
HD700
24V
DC (+24V)
－ +
K1
K2
+24V
VFD700
VFD700
VFD700
