Omron K8DT-AW Series, Руководство пользователя, Страница: 5 / 16

K8DT-AW
5
Timing Charts
Overcurrent and Undercurrent Operation Diagram
DIP switch settings: SW3 ON and SW4 ON, or
SW3 OFF and SW4 OFF
Overcurrent and Overcurrent Operation Diagram
DIP switch settings: SW3 ON and SW4 OFF.
Undercurrent and Undercurrent Operation Diagram
DIP switch settings: SW3 OFF and 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
Input
Note 1. The K8DT-AW
@
outputs are normally operative.
Note 2. The startup lock prevents unnecessary alarms from being generated during the unstable period
when the power is first turned ON. This function is valid only for overcurrent operation.
Delay time: 250 ms
(reference value)
Delay time: 250 ms
(reference value)
t
Flashing
Lit
Flashing
Lit
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
AL1 alarm indicator
AL2 alarm indicator
Contacts 11-14 or
transistor output
Overcurrent
set value (AL1)
Undercurrent
set value (AL2)
Power
supply voltage
t: Operating time (0.1 to 30 s)
LOCK
LOCK: Startup lock time (0 to 30 s)
t
t: Operating time (0.1 to 30 s)
Note 1. The K8DT-AW
@
outputs are normally operative.
Note 2. The startup lock prevents unnecessary alarms from being generated during the
unstable period when the power is first turned ON. This function is valid
only for overcurrent operation.
Delay time: 250 ms
(reference value)
Delay time: 250 ms
(reference value)
Flashing
Lit
Flashing
Lit
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
AL1 alarm indicator
AL2 alarm indicator
Contacts 11-14 or
transistor output
Overcurrent
set value (AL2)
Overcurrent
set value (AL1)
Input
Power
supply voltage
LOCK
t
t
LOCK: Startup lock time (0 to 30 s)
t: Operating time (0.1 to 30 s)
Note 1. The K8DT-AW
@
outputs are normally operative.
Note 2. The startup lock prevents unnecessary alarms from being generated during the unstable period
when the power is first turned ON. This function is valid only for overcurrent operation.
Delay time: 250 ms
(reference value)
Delay time: 250 ms
(reference value)
Lit
Flashing
Lit
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
AL1 alarm indicator
AL2 alarm indicator
Contacts 11-14 or
transistor output
Undercurrent
set value (AL2)
Input
Undercurrent
set value (AL1)
Power
supply voltage
Flashing
LOCK
t
t
LOCK: Startup lock time (0 to 30 s)
t: Operating time (0.1 to 30 s)
Current knob (AL1)
Current knob (AL2)
Operating time knob (T)
Startup lock time knob
(LOCK)
Terminal block
(See note.)
Terminal block
(See note.)
Power indicator
Output status indicator
Alarm indicator
8 mm 8 mm
Solid Wire
8 mm
Stranded Wires Ferrules
Item Meaning
Power indicator
(PWR: Green)
Lit when power is being supplied.
Output status indicator
(Output: Yellow)
Lights for output (lit for normal operation)
Alarm indicator
(ALM1, ALM2: Red)
Lit when there is an overcurrent or undercurrent.
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
Current knob (AL1)
Used to set the current to 10% to 100% of
maximum setting range.
Current knob (AL2)
Used to set the current to 10% to 100% of
maximum setting range.
Operating time knob (T) Used to set the operating time to 0.1 to 30 s.
Startup lock time knob
(LOCK)
Used to set the startup lock time to 0 to 30 s.