G-127
G9SB
G9S
B
G9SB-3010 (24 VDC) with 2-channel Limit Switch Input/Auto-reset
Note: This circuit conforms to EN954-1 Safety Category 3.
KM1
KM2
M
KM1
KM2
11
12
23
24
S2
S1
KM1 KM2
K1
K2
K1
K1
K2
K2
K1
a
a
+
-
K2
TH
SA
A1
A2
T31
T32
13
23
33
41
14
24
34
42
Open
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 (D4D or D4B)
S2: Limit
switch
KM1 and KM2: Magnetic Contactor
M: 3-phase
motor
F502-EN2-04.book Seite 127 Dienstag, 26. Juli 2005 5:48 17
