K8AK-VW
4
Wiring Example
Timing Charts
●
Overvoltage and Undervoltage Operation
Diagram
DIP switch settings: SW3 and SW4 both ON or both OFF.
Note: 1.
The K8AK-VW
@
output relay is normally operative.
2.
The power ON lock prevents unnecessary alarms from
being generated during the instable period when the power
is first turned on. There is no relay output during timer
operation.
●
Overvoltage and Overvoltage Operation
Diagram (Overvoltage Pre-alarm Mode)
DIP switch settings: SW3 ON and SW4 OFF.
Note: 1.
The K8AK-VW
@
output relay is normally operative.
2.
The power ON lock prevents unnecessary alarms from
being generated during the instable period when the power
is first turned on. There is no relay output during timer
operation.
●
Undervoltage and Undervoltage Operation
Diagram (Undervoltage Pre-alarm Mode)
DIP switch settings: SW3 OFF and SW4 ON.
Note: 1.
The K8AK-VW
@
output relay is normally operative.
2.
The power ON lock prevents unnecessary alarms from
being generated during the instable period when the power
is first turned on. There is no relay output during timer
operation.
V
1
21
V
2
V
3
24
22
11
12
14
A1
A2
C
A1
A2
Single-phase
po
w
er s
u
pply
Load
Po
w
er
s
u
pply
v
oltage
Po
w
er s
u
pply
AC/DC
t
t1
t
Delay: 250 ms
(reference
v
al
u
e)
Delay: 250 ms
(reference
v
al
u
e)
AL1 alarm indicator
O
v
er
v
oltage (AL1) relay
(11-14)
Inp
u
t
Under
v
oltage (AL2) relay
(21-24)
O
v
er
v
oltage set
v
al
u
e (AL1)
Under
v
oltage set
v
al
u
e (AL2)
Hysteresis: Fixed at 5%
Flashing
Flashing
Hysteresis: Fixed at 5%
Po
w
er s
u
pply
v
oltage
t1: Po
w
er O
N
lock (1 s or 5 s)
AL2 alarm indicator
t: Operating time (0.1 to 30 s)
Lit
Lit
t: Operating time (0.1 to 30 s)
t1
AL1 alarm indicator
O
v
er
v
oltage (AL1) relay
(11-14)
Inp
u
t
O
v
er
v
oltage (AL2) relay
(21-24)
O
v
er
v
oltage setting (AL1)
Hysteresis: Fixed at 5%
Flashing
Hysteresis: Fixed at 5%
Po
w
er s
u
pply
v
oltage
t1: Po
w
er O
N
lock (1 s or 5 s)
AL2 alarm indicator
O
v
er
v
oltage setting (AL2)
Flashing
Lit
Delay: 250 ms
(reference
v
al
u
e)
Delay: 250 ms
(reference
v
al
u
e)
Lit
t1
AL1 alarm indicator
Inp
u
t
Under
v
oltage (AL2) relay
(21-24)
Under
v
oltage set
v
al
u
e (AL2)
Hysteresis: Fixed at 5%
Flashing
Lit
Hysteresis: Fixed at 5%
Po
w
er s
u
pply
v
oltage
t1: Po
w
er O
N
lock (1 s or 5 s)
AL2 alarm indicator
Under
v
oltage set
v
al
u
e (AL1)
Under
v
oltage (AL1) relay
(11-14)
Flashing
Delay: 250 ms
(reference
v
al
u
e)
Delay: 250 ms
(reference
v
al
u
e)
Lit
