Eaton SmartWire-DT SWD Series Manual

3 Switching on DIL-SWD-32-001, DIL-SWD-32-002 contactors3.3 EngineeringSmartWire-DT module IP20 01/20 MN05006001Z-EN www.eaton.com 75Figure 32: Main circuit for safety relevant switch-offsIn an emergency, the power for the contactor coils can be switched off usingthe enable circuit of the safety relay. By using additional SmartWire-DTPower modules, contactor groups are made that can be switched offtogether in an emergency. With this circuitry, controls can be assembled upto 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 loopThe auxiliary contact integrated in the contactor is a mirror contact accordingto IEC/EC 60947-4-1. Using this contact the state of the main contacts can bereliably signalled. The mirror contact can be included into the feedback circuitof the safety relay so that the safety relay only gives a new enable signalwhen the contactor is open.PEL1L2PEL3-M13~MU V W PEU V W PE-Q1 1 3 5I> I> I>2 4 6-M1-Q11 1 3 52 4 6-M13~MU V W PEU V W PE-Q2 1 3 5I> I> I>2 4 6-M2-Q12 1 3 52 4 6-M13~MU V W PEU V W PE-Q3 1 3 5I> I> I>2 4 6-M3-Q13 1 3 52 4 6-M13~MU V W PEU V W PE-Q4 1 3 5I> I> I>2 4 6-M4-Q14 1 3 52 4 6-M13~MU V W PEU V W PE-Q5 1 3 5I> I> I>2 4 6-M5-Q15 1 3 52 4 6