Cut Sheet

V10-T17-50 Volume 10—Enclosed Control CA08100012E—November 2012 www.eaton.com
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17.6
Technical Data and Specifications
Reduced Voltage Starters
Monitoring Capabilities
The S611 has an impressive
array of system monitoring
capabilities that allow users
to access real time process
and diagnostic data. This data
can be viewed at the device
with the UI or through a
communications network.
Data over a communications
network can provide valuable
insight into the condition
of the equipment and
processes. Maintenance and
production personnel can
monitor critical operational
and maintenance data from
a central control station that
can be located far away
from the production facility.
Process data can be monitored
to determine system anomalies
that may indicate a need for
preventive maintenance or an
Impeding failure.
Adjustments made through
the communications network
can reduce costs by minimizing
the time traveling to the
location where the motor
controls are located. When
faults do occur, real time fault
data can assist maintenance in
troubleshooting and planning
repair resources. Remote
reset signals can be given to
tripped devices without the
need for manual intervention
by maintenance personnel.
Average Line Current
Provides the average of the
three phase RMS line
currents in amps, accurate
to within 2%. Current data
can be used to indicate a
need for maintenance.
Increased currents in a
fixed load application can
indicate a reduction in
system efficiencies and
performance, signifying
system maintenance is due.
Average Pole Current
Provides the average of the
three phase RMS pole
currents in amps, accurate to
within 2%. The pole current
is the current through the soft
starter. The line and pole
current will be identical in
in-line applications, and will
differ in inside-the-delta
applications.
Average Line Current
as a % FLA
Provides the average RMS
line current as a percentage
of the S611 FLA setting.
Three-Phase Line Currents
Provides three RMS phase
line currents in amps,
accurate to within 2%.
Imbalances or changes in
the relative phase current
to one another can indicate
anomalies in the motor or
electrical distribution system.
Three-Phase Pole Currents
Provides three RMS phase
pole currents in amps,
accurate to within 2%. The
pole current is the current
through the soft starter. The
line and pole current will be
identical in in-line applications.
Three-Phase Line Voltages
Provides the individual RMS
three phase line voltages.
Imbalances or changes in the
relative phase voltage to one
another can indicate
anomalies in the motor or
electrical distribution system.
Voltage can be used to
monitor electrical distribution
system performance.
Warnings, alarms and
system actions to low or
high voltage conditions can
be implemented.
Percent Thermal Memory
Provides the real time
calculated thermal memory
value. The S611 calculates
thermal memory value. A
100% value represents the
maximum safe temperature
of the motor. When the
thermal memory value
reaches 100%, an overload
trip will occur, removing
power
to the motor.
The th
ermal
memory value
can be of great use in
determining an impending
overload trip Condition.
Alarms can be implemented
in the process monitoring
system warning of an
Impending trip before a trip
occurs, halting the process.
Costly system downtime can
be avoided.
Pole Temperature
Increases in pole temperature
are caused by increases in
ambient temperature, start/
stop times and start duty
cycles. Changes in pole
temperatures represent a
change in system operating
conditions. Identifying
unexpected operating
conditions or changes can
prompt maintenance and aid
in process evaluation
activities.
Power Monitoring
S611 can monitor power and
it can be displayed on the UI.
Start Count
Number of starts are stored
in the device and can be
displayed using field bus.