K8AB-PW

7

■ Operation and Setting Methods

Connections

1. Input

Connect to L1, L2, and L3 (for three-phase three-wire mode) or L1, L2, L3, and N (for three-phase four-

wire mode), depending on the mode selected using pin 2 on the DIP switch.

The Unit will not operate correctly if the DIP switch setting and the wiring do not agree.

Make sure the phase sequence is wired correctly. The Unit will not operate normally if the phase

sequence is incorrect.

2. Outputs

Terminals 11, 12, and 14 are the output terminals for overvoltage (SPDT).

Terminals 21, 22, and 24 are the output terminals for undervoltage (SPDT).

DIP Switch Settings

The Startup lock time, number of wires, and rated voltage are set using the DIP switch located on the bottom of the Unit.

Load

Voltage input

Signal output

14

12

L1

L2

L3

11

L1

NL2 L3

Signal output

24

22

21

Undervoltage

alarm

Overvoltage

alarm

N

ON

OFF

SW1

SW2

SW3

SW4

DIP switch

DIP Switch Functions

K8AB-PW1

Note: All pins are set to OFF at the factory.

K8AB-PW2

Note: All pins are set to OFF at the factory.

SWITCH

ON

● ↑

OFF

❍ ↓

Power ON lock time 5 s

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---

●

1 s

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---

❍

Number of wires

Three-phase, four-wire

---

---

●

---

Three-phase, three-wire

---

---

❍

---

Rated voltage

Three-phase,

three-wire

Three-phase,

four-wire

240 V

138 V

●●

---

---

230 V

133 V

●❍

---

---

220 V

127 V

❍●

---

---

200 V

115 V

❍❍

---

---

SWITCH

ON

● ↑

OFF

❍ ↓

Power ON lock time 5 s

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---

●

1 s

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---

❍

Number of wires

Three-phase, four-wire

---

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●

---

Three-phase, three-wire

---

---

❍

---

Rated voltage

Three-phase,

three-wire

Three-phase,

four-wire

480 V

277 V

●●

---

---

415 V

240 V

●❍

---

---

400 V

230 V

❍●

---

---

380 V

220 V

❍❍

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ON

OFF

4

ON

OFF

4

3

3

2

1

ON

OFF

4

ON

OFF

4

3

3

2

1