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Operating Instructions

ManualsBrandsSiemens ManualsVariable Speed DriveSiemens BT300 HVAC Drive, Application Manual
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Chapter 4 - Parameters and Menu Structure
Parameters (M3)
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Siemens Industry, Inc.
Siemens BT300 HVAC Drive
DPD01809
Smart Infrastructure
2019-05-29
Structure
Parameter
Unit
Min
Max
Default
ID
Description
P3.1.2.16
Under Volt Contr
Disabled
Enabled
Enabled
608
Enable parameter for the over voltage
controller. When enabled, the drive
acceleration and speed can be
modified by the controller to prevent
the drive from tripping.
P3.1.2.17
StatorVoltAdjust
%
50
150
100
659
Parameter for adjusting stator voltage
in permanent magnet motors.
P3.1.2.18
Energy Optimization
Disabled
Enabled
Disabled
666
Enable parameter to have the drive
search for the minimum motor current
in order to save energy and to lower
the motor noise.
P3.1.2.19
Flying Start Options
Both
Directions
FreqRefDirection
Both
Directions
1590
0 = Shaft direction is searched in both
directions.
1 = Shaft direction is searched in
setpoint direction only.
Selection
Number
Selection Name
Description
0
Linear
The voltage of the motor changes linearly as a function of output frequency from zero frequency
voltage (P3.1.2.4) to the field weakening point (FWP) voltage at FWP frequency. This default setting
should be used if there is no special need for another setting.
1
Squared
The voltage of the motor changes from zero point voltage (P3.1.2.4) following a squared curve form
from zero to the field weakening point. The motor runs under-magnetized below the field weakening
point and produces less torque. Squared U/f ratio can be used in applications where torque demand is
proportional to the square of the speed (for example, in centrifugal fans and pumps).