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Application Examples
G9SB-2002-A (24 VAC/VDC) or G9SB-3012-A (24 VAC/VDC) with 2-channel Limit Switch Input/Auto-reset
23
S2
24
11
S1
12
Open
A1 A2 T11
T12
+ -
TH
K1
SA
K1
T21
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
S1
21
11
22
12
A1 A2 T11
T12
+ -
TH
K1
SA
K1
T21
Note: 1. External connections and timing charts for G9SB-200-D/301-D models are the same as those for G9SB-2002-C/3012-D models.
2. This circuit conforms to EN954-1 Safety Category 4.
G9SB
KM1
KM2
Feedback loop
T31
T32
13
23
K2
K1
K1
K2
a
Control
K2
circuit
a
K2
T22
14
24
KM1 KM2
KM1
KM2
S2
Feedback loop
* *
T31
T32
13
23
33
K2
K1
K1
K2
a
Control
K2
circuit
a
K2
T22
14
24
34
* *
KM1 KM2
Timing Chart
Limit switches S1 and S2
K1 and K2 (NC)
K1 and K2 (NO)
KM1 and KM2 (NC)
KM1 and KM2 (NO)
*
*
33
41
KM1
KM2
34
42
*
*
See note.
M
Timing Chart
Emergency stop switch S1
Reset switch S2
K1 and K2 (NC)
K1 and K2 (NO)
41
KM1
KM2
42
See note.
M
S1:
Safety limit switch with direct
opening mechanism (D4N or
D4B)
S2:
Limit switch
KM1 and KM2: Magnetic Contactor
M:
3-phase motor
Note: Only the G9SB-3012-A
model has terminals 33-34
and 41-42.
KM1 and
KM2 (NC)
KM1 and
KM2 (NO)
Note: Output turns ON with the ri-
sing 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.
G-125
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