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7 Connection examples
7.3 Size 3 and 4 (41 – 200 A)
7.3.3 Standard connection with upstream mains contactor and soft stop ramp
134
DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com
L1
L2
L3
PE
Q1
I > I > I >
Q11
F2
F3
Q21
M
M1
3 ~
Figure 103: Standard connection with mains contactor
L01/L+
Q1
F2
①
S1
S2
K1
K1
L00/L-
Figure 104: Control section with mains contactor
F1
TOR
- U
+ U
- A2
EN
+ A1
13
14
s
s
K1
K3
(+) U
(–) U
①
Q21
K1
K1
S3
S4
K3
K3
Q11
RUN
23
24
s
24 V AC/DC, 120/230 V AC
s
① Control section for the mains contactor Q11
During operation, the deactivation via S1
23
RUN
causes an uncontrolled stop of the motor.
24
The RUN relay (Q21:23/24) monitors the
switching operation (no undefined operating
state).
S1 = Off
S2 = On
S3 = Soft stop
S4 = start
Q1; F1: cable protection
F2: motor protection
F3 = optional semi-conductor
fuse for type 2 coordination in
addition to (optional) Q1
K1: Controller enable
K3: Start/stop
Q11: Mains On/Off
Q21: Soft starters
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