BENSHAW RediStart EXEXMVRMX3 Series, User Manual

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P.O.R.T. Recovery Method FUN 12
LCD Display
Range LCD Description
Fast Recover Current acceleration ramp from 100% FLA -> 800% FLA with a
ramp time of 1 second.
(Default)
Current Ramp Current acceleration ramp using the Ramp#1 user parameter settings.
Current Ramp 2 Current acceleration ramp using the Ramp#2 user parameter settings.
Ramp Select Current acceleration ramp using the appropriate current ramp
selected by the RAMP Select digital input.
Tach Ramp Speed controlled acceleration ramp. Ramp starts at motor speed
measured at start of recovery and accelerates motor at same slope
(acceleration rate) as a normal tachometer start from zero speed
would do.
Description The PORT Recovery parameter sets how the starter will re-accelerate the motor when power returns.
Tachometer Full Speed Voltage FUN 13
LCD Display
Range 1.00 – 10.00 V in 0.01 volt increments (Default: 5.00V)
Description The Tachometer Full Speed Voltage parameter sets the tachometer input voltage at full speed. This value
should be set at full (unloaded) motor speed.
Ex. A tachometer rated at 0.0033 volts-per-rpm is mounted on a 4-pole 1800 rpm motor. Therefore, the FS
Volts should be set to: 0.0033 * 1800 = 5.94 volts.
Tachometer Loss Time FUN 14
LCD Display
Range
0.1 – 90.0 seconds
(Default: 1.5)
Description The Tachometer Loss Time is the allowable time the starter will operate when a tachometer signal is lost. If
the signal is lost, the starter will perform the action set by the Tach Loss Action parameter.
z
NOTE: Nuisance tachometer loss faults at start can be prevented by setting the initial current parameter to
a value that allows the motor to begin rotating soon after a start is commanded.
Tachometer Loss Action FUN 15
LCD Display
Range LCD Description
Fault The starter will shutdown and indicate a tachometer loss fault.
Current Acceleration If the tachometer signal is lost the starter will fault. However the start mode
parameter will be set to Current control acceleration so that when the fault is
reset the starter will start in current control mode.
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6 - PARAMETER DESCRIPTION
FUN: Tach FS Lvl
13
5.00 Vlt
FUN: Tach Los Tim
14
1.5 sec
FUN: Tach Los Act
15
Fault
FUN: PORT Recover
12
Fast Recover