Eaton DS7 - Standard Connection with Upstream Mains Contactor and Soft Stop Ramp

7 Connection examples
7.3 Size 3 and 4 (41 – 200 A)
134 DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com
7.3.3 Standard connection with upstream mains contactor and soft stop ramp
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
Figure 103: Standard connection with mains contactor
① Control section for the mains contactor Q11
During operation, the deactivation via S1
causes an uncontrolled stop of the motor.
The RUN relay (Q21:23/24) monitors the
switching operation (no undefined operating
state).
S1 = Off
S2 = On
S3 = Soft stop
S4 = start
Figure 104: Control section with mains contactor
M
3 ~
1L1 3L2 5L3
PE
PE
TOR
- A2 EN + A1 13 14 2423
2T1 4T2 6T3
L1
L2
L3
PE
Q11
Q21
F3
F2
M1
K1
Q1
I > I > I >
K3
F1
RUN
- U
s
+ U
s
(+) U
s
24 V AC/DC, 120/230 V AC
(–) U
s
K1
S2
L01/L+
L00/L-
Q1
F2
S1
S4
S3
RUN
K1
K3
K1
K3
①
Q11
K1
Q21
23
24
①