Wiring & Operation
Emergency Brake
A dedicated Emergency Stop button, with
wo contacts initiates braking.
t
When Stop contact is opened, contactor C
1
opens,
he Solbrake / SMB is not initiated.
t
When Emergency Button is pressed, the Emergency
Contact is opened and the N.O. contact of the
Emergency Stop closes and initiates the braking
rocess.
p
When Emergency Stop contact is opened, C1
contactor opens and the Solbrake / SMB is operated,
initiating the braking process.
M
L
1
L
2
U
V
W
C
1
C
2
O/L
1
2
Emergency
SMB
Power
3
4
5
6
C
a
C
b
C
2-1
C
1-2
C
1
Start
Stop
O/L
C
1
C
2
SMB
Control
M
L
1
L
2
U
V
W
C
2
O/L
1
2
SMB
Power
3
4
5
6
C
a
C
b
C
2-1
C
r-2
Stop
O/L
C
f
C
2
SMB
Control
Start
Forward
C
f-2
C
r-1
C
f-1
C
r-3
C
f-4
C
r
Start
Reverse
C
f-3
C
r-4
C
f
C
r
Reversing
C
2
- SMB Contactor.
Cf - Forward Contactor
Cr - Reversing Contactor
Interlocked Contactors.
Braking process is initiated
when Contactors Cf or Cr open.
Star-Delta
C
b
- SMB Contactor.
Cs - Star Contactor
Cd - Delta Contactor
Cl - Line Contactor
T - Timer Relay
Braking process is initiated
when Contactors Cd or Cl will
open. Hence, a mechanical
interlock between Cb and Cd+Cl
L1
L2
U V
W
O/L
1 2
Solbrake
SM B
Power
Cd
Cl
Cl
Cd
U V W
M
W 2
U2 V2
Cs
L1 L2 L3
3 4
5
6
Ca
Cb
Cb
Cd
Stop
O/L Reset
Cs
Cb
Solbrake
SM B
Control
Cl
Cl
CT
T
Cs
Cd
Cs
Cl
Cl
Cs
Start
Cb
O/L
is recommended.
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