Eaton Industrial Switchgear - xStart switching, protections and actuating motors

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2010 CA08103002Z-EN
9/48 DM4 soft starters
Connection examples
Connectionexamples
Bypass circuit
After the run-up (full mains voltage
reached) the DM4 soft starter actuates
the bypass contactor. The motor is
then directly connected with the
mains.
Advantages:
• The soft starter’s power loss is
reduced to the no-load power loss.
• The limit values of radio interfer-
ence class “B” are maintained.
Actuation
= Emergency switching off
S1: Off (uncontrolled deceleration)
S2: On
① Enable
② Soft start/Soft stop
① See actuation
② Control voltage through Q1 and F11 or through Q2
③ Motor current indication
E1: Start/stop
E2: Enable
T1: + Thermistor
T2: - Thermistor
a b
S2
K1 E2
39
E1
39
S4 Q22
K1
K1 K1 K2
K1
Q21 Q21
K2
K2
Q21 RUN
Q11
13
14
23
24 Q21 TOR
Q22
33
34
S1
S3
Q21 OK
(no error)
~
=
~
=
7
M
M1
mot
Q21
F3
3~
L1
L2
L3
N
PE
L N E1 E2 39
13
K1;RUN K2;TOR K3 K4
14 23 24 33 34 43
1L1 3L2 5L3
2T1 4T2 6T3
+12 8
PE
1 7
62 63
0
V (E1;E2) +12VDC
REF 1:0–10V
REF 2:4–20mA
T1 T2
F11
Q11
⎧ ⎪ ⎨ ⎪ ⎩
Q1 Q1
a
b
c
Q22
I> I> I> I > I> I>
I
-Thermistor
+ Thermistor 0
VAnalog AnalogOut 1AnalogOut 2
0
VAnalog
Start/StopEnable
DM4