2 ac power specifications, Visual kv series operation at power interruption, Visual kv series – KEYENCE Visual KV Series User Manual
Page 29
Chapter 1 Configuration and Specifications
1-5
1
1
Visual KV
Series
1.2.2
AC Power Specifications
1. Includes the internal current consumption and current consumption of expansion units.
Note: The maximum output capacity available with the AC type service power
output is the output capacity of each basic unit subtracted by the internal current
consumption of the basic unit, connected expansion units, and connected peripheral
units.
Visual KV Series operation at power interruption
■ Drop in supply voltage
When the supply voltage drops, the Visual KV Series stops operating and the
output turns off.
■ Detection of instantaneous power interruption
•
An AC type basic unit continues operating against instantaneous power interrup-
tion of less than 40 ms. A DC type basic unit continues operating against
instantaneous power interruption of less than 2 ms.
•
An AC type basic unit may or may not accept instantaneous power interruption of
40 ms or more. A DC type basic unit may or may not accept instantaneous power
interruption of 2 ms or more.
•
When accepting instantaneous power interruption, a basic unit stops operating
and the output turns off.
■ Automatic recovery
•
Once the supply voltage recovers, the Visual KV Series restarts operation auto-
matically.
Note: If the supply voltage increases gradually or drops, the Visual KV Series may
repeat operation and then stop. If problems continue to occur with equipment and
other operations from repetitive starts and stops, provide a protection circuit so that
the output shuts down until the voltage reaches the rated value.
■ Time until start of operation
•
The time period from when the power is turned on until operation starts varies
depending on the conditions, including the supply voltage, system configuration,
and operating environment. The minimum time is approximately 1.2 ms.
•
When a user program is changed, it will be saved in the EEPROM when the
power is next turned on. Therefore, in such a case, the time period from when the
power is turned on until operation starts is longer than usual.
1.2 Specifications
m
e
t
I
s
n
o
i
t
a
c
i
f
i
c
e
p
S
d
o
h
t
e
M
d
o
h
t
e
m
g
n
i
h
c
t
i
w
S
e
s
i
o
n
e
l
p
p
i
R
s
s
e
l
r
o
p
-
p
V
m
0
4
2
t
n
e
r
r
u
c
r
e
w
o
p
C
A
n
o
i
t
p
m
u
s
n
o
c
A
5
.
0
:
x
A
6
1
-
V
K
A
4
.
0
:
x
A
0
1
-
V
K
A
7
.
0
:
x
A
0
4
-
V
K
A
6
.
0
:
x
A
4
2
-
V
K
e
g
a
t
l
o
v
t
u
p
n
i
r
e
w
o
p
C
A
(
C
A
V
0
4
2
o
t
0
0
1
±
)
%
0
1
r
o
t
c
a
f
r
e
w
o
p
C
A
%
0
6
e
g
a
t
l
o
v
t
u
p
t
u
O
.
1
C
D
V
4
2
±
%
0
1
y
t
i
c
a
p
a
c
t
u
p
t
u
O
A
6
.
0
:
x
A
6
1
-
V
K
A
4
.
0
:
x
A
0
1
-
V
K
A
7
.
0
:
x
A
0
4
-
V
K
A
6
.
0
:
x
A
4
2
-
V
K
n
o
i
t
p
m
u
s
n
o
c
r
e
w
o
P
W
1
2
:
x
A
6
1
-
V
K
W
4
1
:
x
A
0
1
-
V
K
W
4
2
:
x
A
0
4
-
V
K
W
1
2
:
x
A
4
2
-
V
K
e
s
u
f
d
e
s
U
,
A
5
1
.
3
:
t
n
e
r
r
u
c
d
e
t
a
r
,
C
A
V
0
4
2
:
e
g
a
t
l
o
v
d
e
t
a
R
e
p
y
t
g
n
i
t
l
e
m
-
t
s
a
F
:
s
c
i
t
s
i
r
e
t
c
a
r
a
h
C
Rated voltage
Instantaneous power interruption:
Less than 40 ms
Rated voltage
▲
▲
▲
▲
Rated voltage
Instantaneous power interruption:
40 ms or more
Rated voltage
KVHKA Chap 01.p65
08.3.11, 11:09 AM
5