Eaton SmartWire-DT SWD Series User Manual

3 Switching on DIL-SWD-32-001, DIL-SWD-32-002 contactors
3.3 Engineering
SmartWire-DT module IP20 01/20 MN05006001Z-EN www.eaton.com 75
Figure 32: Main circuit for safety relevant switch-offs
In an emergency, the power for the contactor coils can be switched off using
the enable circuit of the safety relay. By using additional SmartWire-DT
Power modules, contactor groups are made that can be switched off
together in an emergency. With this circuitry, controls can be assembled up
to safety category 1 to EN 954-1. The safety relay must comply with Cate-
gory 1 or higher (e.g. ESR5-NO-41-24VAC-DC) in this example.
3.3.4 Feedback loop
The auxiliary contact integrated in the contactor is a mirror contact according
to IEC/EC 60947-4-1. Using this contact the state of the main contacts can be
reliably signalled. The mirror contact can be included into the feedback circuit
of the safety relay so that the safety relay only gives a new enable signal
when the contactor is open.
PE L1 L2 PE L3
-M1
3~
M
UV
WPE
UV
W
PE
-Q1
1
3
5
I>
I>
I>
2
4
6
-M1
-Q11
1
3 5
24
6
-M1
3~
M
UV
WPE
UV
W
PE
-Q2
1
3
5
I>
I>
I>
2
4
6
-M2
-Q12
1
3 5
24
6
-M1
3~
M
UV
WPE
UV
W
PE
-Q3
1
3
5
I>
I>
I>
2
4
6
-M3
-Q13
1
3 5
24
6
-M1
3~
M
UV
WPE
UV
W
PE
-Q4
1
3
5
I>
I>
I>
2
4
6
-M4
-Q14
1
3 5
24
6
-M1
3~
M
UV
WPE
UV
W
PE
-Q5
1
3
5
I>
I>
I>
2
4
6
-M5
-Q15
1
3 5
24
6

Eaton SmartWire-DT SWD Series Specifications

General

Brand	Eaton
Model	SmartWire-DT SWD Series
Category	Control Unit
Language	English