G9SB

Application Examples

G9SB-2002-A (24 VAC/VDC) or G9SB-3012-A (24 VAC/VDC) with 2-channel Limit Switch Input/

Auto-reset

Note: 1. External connections and timing charts for G9SB-200-B/301-B models are the same as those for G9SB-2002-A/3012-A models.

2. This circuit conforms to EN954-1 Safety Category 4.

G9SB-2002-C (24 VAC/VDC) or G9SB-3012-C (24 VAC/VDC) with 2-channel Emergency Stop

Switch Input/Manual Reset

Note: 1. External connections and timing charts for G9SB-200-D/301-D models are the same as those for G9SB-2002-C/3012-C models.

2. This circuit conforms to EN954-1 Safety Category 4.

KM1

KM2

M

11

KM1

KM2

12

23

24

S2

S1

KM1 KM2

K1

K2

K1

K1

K2

K2

K1

a

a

+

-

K2

TH

SA

A1 A2 T11

T12

T31

T32

13

23

33

41

14

24

34

42

T21

T22

**

**

Feedback loop

Control

circuit

Timing Chart

Limit switches S1 and S2

K1 and K2 (NC)

K1 and K2 (NO)

KM1 and KM2 (NC)

KM1 and KM2 (NO)

S1:

Safety limit switch with direct

opening mechanism (NC)

(D4B-N, D4N, D4F)

S2:

Limit switch (NO)

KM1 and KM2:

Magnetic Contactor

M:

3-phase motor

Note: Only the G9SB-3012-A

model has terminals 33-34

and 41-42.

Open

See note.

KM1

KM2

M

S2

KM1

KM2

21

22

S1

11

12

KM1 KM2

K1

K2

K1

K1

K2

K2

K1

a

a

+

-

K2

TH

SA

A1 A2 T11

T12

T31

T32

13

23

33

41

14

24

34

42

T21

T22

**

**

Feedback loop

Control

circuit

Timing Chart

Emergency stop switch S1

Reset switch S2

K1 and K2 (NC)

K1 and K2 (NO)

KM1 and

KM2 (NC)

KM1 and

KM2 (NO)

Note: Output turns ON with the ris-

ing edge of reset switch S2,

but will not operate if there is

a short breakdown in S2.

S1:

Emergency stop switch with

direct opening mechanism

(A165E, A22E)

S2:

Reset switch

KM1 and KM2:

Magnetic Contactor

M:

3-phase motor

Note: Only the G9SB-3012-C model

has terminals 33-34 and 41-

42.

See note.

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