BENSHAW RediStart EXEXMVRMX3 Series, User Manual

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Energy Saver FUN 09
LCD Display
Range On – Off (Default: Off) *THIS FUNCTION IS NOT AVAILABLE FOR MEDIUM VOLTAGE*
Description The Energy Saver parameter lowers the voltage applied to a lightly loaded motor. It continues to lower the
voltage until it finds the point where the current reaches its lowest stable level and then regulates the voltage
around this point. If the load on the motor increases, the starter immediately returns the output of the starter to
full voltage.
z
NOTE: This function does not operate if a bypass contactor is used.
z
NOTE:
In general, Energy Saver can save approximately 1000 watts per 100 HP. Consult Benshaw for
further detail.
P.O.R.T. Fault Time FUN 10
LCD Display
Range Off, 0.1 – 90.0 seconds (Default: Off)
Description
The purpose of PORT is to not fault when all line power has been lost and to wait for a predetermined amount
of time for power to return. There is the capability to hold the bypass contactor (if present) in for a given
amount of time. Then when power returns, PORT shall perform a controlled restart of the motor to prevent
current and/or torque spikes from occurring. The starter will enter PORT when the line voltage drops below
the undervoltage trip level if enabled, or 30% below rated voltage when undervoltage protection is not
enabled.
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NOTE: For PORT to operate it is assumed that an UPS (Uninterruptible Power Supply) will supply the
MX
3
control power. Also the MX
3
run command needs to be held active during the power outage otherwise
the MX
3
will perform a normal stop.
P.O.R.T. Bypass Hold Time FUN 11
LCD Display
Range
Off, 0.1 – 5.0 seconds
(Default: Off)
Description
When a power outage event is detected and the PORT bypass hold timer is enabled, the starter will hold the
Bypass contactor in for a user selectable amount of time. When the time expires the starter shall open the
bypass.
105
6 - PARAMETER DESCRIPTION
FUN: Energy Saver
09
Off
FUN: PORT Flt Time
10
Off
FUN: PORT Byp Tim
11
Off