Cut Sheet

V10-T17-66 Volume 10—Enclosed Control CA08100012E—November 2012 www.eaton.com
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17.6
Technical Data and Specifications
Reduced Voltage Starters
Communications
The S811+ has native
Modbus RTU communication
capabilities. The S811+ may
be connected to a variety
of networks, including
DeviceNet™, Modbus TCP,
EtherNet/IP and PROFIBUS.
The S811+ communication
parameters can be configured
with the DIM or through the
Fieldbus using CH Studio
Component Manager.
Advanced communication
configuration settings provide
the system integrator with
powerful tools to facilitate
system optimization
Operation
Starting and Stopping Modes
The S811+ has a variety of starting and stopping methods to provide superior performance in
the most demanding applications. The motor can be started in either voltage ramp start or
current limit start mode. Kick start and soft stop are available within both starting modes. The
user has the option to configure two independent start ramp profiles to accommodate variations
in starting requirements.
Voltage Ramp Start
Provides a voltage ramp to the
motor resulting in a constant
torque increase. The most
commonly used form of soft
start, this start mode allows
you to set the initial torque
value and the duration of the
ramp to full voltage
conditions. Bypass contactors
close after ramp time.
●
Adjustable initial torque
0–85% of locked rotor
torque
●
Adjustable ramp time
0.5–180 seconds (0.5–360
seconds with the S811+
Premium)
Starting Characteristics—Ramp Start
Communications Reference
Description
Part
Number
Modbus TCP Communication Adapter with 120 Vac I/O C441U
Modbus TCP Communication Adapter with 24 Vdc I/O C441V
EtherNet/IP Communication Adapter with 120 Vac I/O C441U
EtherNet/IP Communication Adapter with 24 Vdc I/O C441V
85–264 Vac input, 24 Vdc output PSG240E
360–575 Vac input, 24 Vdc output PSG240F
Run
100%
Locked Rotor Torque
Time (Seconds)
Initial
Torque