12 S611 Soft Starter MN03902011E—May 2012 www.eaton.com
Typical Control Wiring Diagrams
Each diagram illustrates a typical wiring scheme for the options described. The additional
components shown on the diagrams are not included, but may be purchased from Eaton.
Mains power is not required to energize the control circuit of the S611. All protection and
operation parameters may be adjusted using only control power.
Compliance with all local, state, and national codes is required if an external 120 Vac power
source other than the normal control power source is used to power the control circuit.
Basic Connection Diagram for 120 Vac Three-Wire Pushbutton
Notes:
1. For a single conductor, a minimum wire of 14 AWG (2.5 mm
2
) should be used between
the control power transformer and the supply terminals.
2. See “Using Auxiliary Contacts” section if it is desired to use a relay instead of an
indicating lamp for terminals 13, 14, 95, 96 and 98.
3. If an isolation or reversing contactor is used upstream of the S611, Eaton recommends
that the operator uses the level sensing option (default value) of the Start Control
Parameter Code in the Advanced Parameters Menu.
Reset
E-Stop
Maintained
Momentary
Ground
+24V
D0
D1
Common
N–Tap
Neutral
L–Tap
Line
Start
Stop
TB1
120 Vac
Supply
User Interface
Module
TB4
Comms Port A
98 97 96 13 14
Comms Port B
TB5 (Connector)
TB2
Relays
TB3
120 Vac
Control
Relay 2 Relay 1
N–Network
L–Network
N–Permissive
L–Permissive
N–Start
L–Start
N–Reset
L–Reset
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