Cut Sheet

Volume 10—Enclosed Control CA08100012E—November 2012 www.eaton.com V10-T17-69
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17.6
Technical Data and Specifications
Reduced Voltage Starters
Features and Benefits
●
Communication
capabilities with various
protocols
●
The Digital Interface
Module (DIM) provides an
intuitive, easy-to-use
human interface with
powerful configuration
capabilities to maximize
system performance
●
Door or device mounted
DIM enables users to
safely configure,
commission, monitor and
troubleshoot the system at
the electrical panel without
opening the enclo
sure door,
eliminating the possibility
of
an arc flash incident
●
System operating
parameters can be
monitored enterprise-wide
through a communications
network. Increase uptime
by providing data for
process management and
preventive diagnostics
●
Run internal bypass mode
greatly reduces internal
heating created by the
greater power dissipation
in the SCRs. Bypass
contactor directly connects
the motor to the line and
improves system efficiency
by reducing internal power
losses
●
Internal solid-state overload
protection provides accurate
current measurement and
trip settings. Sophisticated
algorithms solve a series
of differential equations
that model true motor
heating and cooling,
resulting in superior motor
overload protection while
minimizing nuisance trips.
Advanced selectable
protective features
safeguard the motor
and system against a
variety of system faults
●
Internal run bypass
contactors and overload
protection eliminate the
need for additional devices,
reducing enclosure sizes,
minimizing installation and
wiring time, and reducing
overall assembly size
and cost
●
Wide range of overload
FLA settings (31–100%
of rated current) and a
selectable trip class (5–30)
offers users the flexibility
to fine tune the starter to
match specific application
requirements
●
Variable ramp times and
torque control settings
provide unlimited starting
configurations, allowing
for maximum application
flexibility
●
Kick-start feature enables
soft starting of high
friction loads
●
Soft stop control for
applications where an
abrupt stop of the load
is not acceptable
●
The S811+ Premium with
sophisticated pump control
algorithms on both starting
and stopping that minimize
the pressure surges that
cause water hammer. The
pump control feature will
maximize the life of the
pump and piping systems
while minimizing the
downtime caused by
system failure
●
Six SCRs control all three
motor phases, providing
smooth acceleration and
deceleration performance
●
Soft acceleration and
deceleration reduces
wear on belts, gears,
chains, clutches, shafts and
bearings
●
Reduce the peak inrush
current’s stress on the
power system
●
Manage peak starting
torque to diminish
mechanical system
wear and damage
●
24 Vdc control voltage
enhances personnel
and equipment safety
●
Removable, lockable
control terminal block
reduces maintenance
costs. Also provides the
opportunity for OEMs to
reduce assembly and test
costs by utilizing pre-
assembled wire harnesses
Motor Wiring Configuration
User Selectable Inline or
Inside-the-Delta
Mains Motor Wiring
Configuration is
accomplished by simply
selecting the required
configuration from a menu.
This feature allows
adaptability from one
configuration to another
without any additional
programming operations and
reduces inventory levels by
not having to stock both
configurations.
Modbus Native
Communications Protocol
Modbus RTU communications
in now standard on all S811+
units. This allows users to
quickly configure the unit for
network communications
using a common protocol.
Adapters are available for
users who prefer to use
EtherNet/IP or Modbus TCP
protocols.
Programmable Control
Terminal Block
Functionality
Four programmable terminals
on the S811+ enable the user
to expand functionality with
options such as a second
start ramp profile, externally
triggered trip or warning
functions, analog inputs, and
others, in addition to the
normal start, stop, reset, and
so on, functions.
Second Start Ramp Profile
Capability
A second start ramp profile
may be configured for the
soft starter. This profile is
independent of the primary
profile and retains all the
parameter options such as
start time and initial torques.
With a signal at a terminal
programmed for this feature,
the second profile may be
selected by a pushbutton
station or a network.
Alarm-No-Trip Functionality
Some applications require the
ability to effectively disable
most protections with the
intent of enabling the RVSS
unit to control a motor under
the most severe operating
conditions characterized by
current or voltage
imbalances, high or low value
deviations, or other fault
conditions. This function
causes the S811+ to ignore
most fault trip conditions and
continue operation of the
application.
Digital Interface Module
(DIM) Cloning
For OEMs or other users that
desire to load identical
parameter settings into
multiple RVSS units, the DIM
may be used to extract and
duplicate parameter settings
from one RVSS and loaded
into other units, saving time,
effort, and reducing chances
for errors while programming.