K8AB-VS

5

Connections

■ Wiring Diagram

Overvoltage Operation Diagram

(Output Relay Drive Method: Normally

Closed)

DIP switch setting: SW3 ON.

Note: 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 Operation Diagram

(Output Relay Drive Method: Normally

Open)

DIP switch setting: SW3 OFF.

Note: 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.

Note: There is no polarity when a DC current input is used.

T1

T

Operating value

Input

Power supply

voltage

Relay 11-14

Relay 11-12

Alarm indicator

T: Operating time (0.1 to 30 s)

T1: Startup lock time (1 or 5 s)

Lit

Flashing

Hysteresis

(

−5% to 50% of operating value)

Lit

Flashing

T1

T1: Power ON lock (1 or 5 s)

T

T: Operating time (0.1 to 30 s)

Hysteresis

(5% to 50% of operating value)

Power supply

voltage

Relay 11-14

Relay 11-12

Operating value

Alarm indicator

Input

Load

Power supply

voltage

Voltage input

Signal output

14

12

A1

A2

V1

V2

V3

11

Relay

signal

output

COM

Single-phase power