K8DT-VS
5
Timing Charts
Overvoltage Operation Diagram
(Output Drive Method: Normally Closed)
DIP switch setting: SW3 ON, SW4 OFF.
Undervoltage Operation Diagram
(Output Drive Method: Normally Open)
DIP switch setting: SW3 OFF, SW4 ON.
Nomenclature
Front
Note:
Use solid wires, stranded wires, or ferrules to connect to the
terminals.
To maintain the withstand voltage after connecting the
terminals, insert 8 mm of exposed conductor into the terminal.
Indicators
Setting Knobs
N
ote: The po
w
er O
N
lock pre
v
ents
u
nnecessary alarms from
b
eing
generated
d
u
ring the insta
b
le period
w
hen the po
w
er is first
t
u
rned on. There is no contact o
u
tp
u
t d
u
ring timer operation.
Delay time: 250 ms (reference
v
al
u
e)
Hysteresis
(5
%
to 50
%
of operating
v
al
u
e)
Lit
Flashing
t1
t1: Po
w
er O
N
lock (1 or 5 s)
t
t: Operating time (0.1 to 30 s)
Inp
u
t
Po
w
er s
u
pply
v
oltage
Contacts 11-14 or
transistor o
u
tp
u
t
Contacts 11-12
Set
v
al
u
e
Alarm indicator
N
ote: The po
w
er O
N
lock pre
v
ents
u
nnecessary alarms from
b
eing
generated d
u
ring the insta
b
le period
w
hen the po
w
er is first
t
u
rned on. There is no relay o
u
tp
u
t d
u
ring timer operation.
Po
w
er s
u
pply
v
oltage
Contacts 11-14 or
transistor o
u
tp
u
t
Contacts 11-12
Set
v
al
u
e
Alarm indicator
Inp
u
t
Delay time: 250 ms (reference
v
al
u
e)
Hysteresis
(5
%
to 50
%
of operating
v
al
u
e)
Lit
Flashing
t1
t1: Po
w
er O
N
lock (1 or 5 s)
t
t: Operating time (0.1 to 30 s)
V
oltage kno
b
(S
V
)
Hysteresis kno
b
(HYS)
Operating time kno
b
(T)
Po
w
er indicator
O
u
tp
u
t stat
u
s indicator
Alarm indicator
Terminal
b
lock
(See
N
ote.)
Terminal
b
lock
(See
N
ote.)
8
mm
8
mm
Solid
W
ire
8
mm
Stranded
W
ires
Ferr
u
les
Item
Meaning
Power indicator
(PWR: Green)
Lit when power is being supplied.
Output status indicator
(OUT: Yellow)
Lights for output
Alarm indicator
(ALM: Red)
Lit when there is an overvoltage or
undervoltage.
The indicator flashes to indicate the error
status after the input has exceeded the set
value while the operating time is being
clocked.
Item
Usage
Voltage knob (SV)
Used to set the voltage to 10% to 100% of
maximum setting range.
Hysteresis knob (HYS)
Used to set the rest value to 5% to 50% of
the operating value.
Operating time knob (T)
Used to set the operating time to 0.1 to 30 s.
