S611 Soft Starter MN03902011E—May 2012 www.eaton.com 11
The following table provides the terminal block wiring capacity and torque requirements for the control wiring.
Terminal Block Wiring Capacity
Control Terminal Descriptions
The S611 soft starter has the following control terminal block connections:
S611 Terminal Block Control Wiring
Notes
To avoid voltage drop during bypass contactor inrush, a minimum of 14 AWG wire should be used.
5A maximum current allowed.
Wire Size
Number of
Conductors
Torque
Requirements
22–16 AWG (0.33–2.5 mm
2
) 2 3.5 lb-in (0.4 Nm)
14–12 AWG (4.0 mm
2
) 1 3.5 lb-in (0.4 Nm)
Name Terminal Function Connections
Control supply power Line
TB1
Control supply power input
120 Vac, 50/60 Hz
Connect power to terminals supply 1 and supply 2
Supply power tap L-tap
TB1
120V power tap
5A unfused output
120 Vac, 50/60 Hz
120V power to external devices
Relay 2
F2
97
TB2
Common for 96 and 98 Form C contacts: These contacts will change state to NC and NO once
unit is energized. They will remain in this state until a fault is
generated
Relay 2
F2
96
TB2
NC energized
6A at 120V
Relay 2
F2
98
TB2
NO energized
6A at 120V
Relay 1
F1
13
TB2
Common NO Form A contact: Programmable contact closes according to user
specified requirements
Relay 1
F1
14
TB2
NO de-energized
6A at 120V
Network control Network
TB3
Enable network control input
120 Vac, 50/60 Hz
(maintained)
Energize (120 Vac) to enable network control of the unit. If power is
removed from the permissive circuit at any time, the unit will begin a
STOP command. If a soft stop is selected, the soft stop will begin and
run for stop ramp time
Permissive Permissive
TB3
STOP
control input
120 Vac, 50/60 Hz
(maintained)
Permissive must be energized (120 Vac) to enable operation of the
unit. If power is removed from the permissive circuit at any time, the
unit will begin a STOP command. If a soft stop is selected, the soft
stop will begin and run to time-out
Start
(run)
Start
TB3
START (RUN)
control input
120 Vac, 50/60 Hz
(momentary)
Applying 120 Vac to input 1 while P is energized will initiate a START.
As shipped from the factory this input is “level” sensitive
Reset Reset
TB3
RESET
control input
120 Vac
(momentary)
Energizing this input will reset a fault only after the fault condition has
been corrected
Comms port A
RS-485 communications
+24V
TB4
24 Vdc at 2.5W 24 Vdc used to power L-adapter and secondary communication adapter.
No more that 2.5W should be loaded onto this 24 Vdc supply
D0 TB4 Comms port D0 Modbus RS-485 communication port D0
D1 TB4 Comms port D1 Modbus RS-485 communication port D1
Common
TB4
Comms port ground Common ground used for Modbus RS-485 and 24 Vdc
Comms port B
RS-485 communications
TB5 Comms Port Connections as per adapter module requirements
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