Operating Instructions

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
Motor Control Settings (M3.1.2)
Table 15: Motor Control Settings.
Structure
Parameter
Unit
Min
Max
Default
ID
Description
P3.1.2.1
Switching Freq
kHz
1.5
Varies
Varies
601
Motor noise can be minimized using a
high switching frequency. Increasing
the switching frequency reduces the
capacity of the drive. It is
recommended to use a lower frequency
when the motor cable is long in order
to minimize capacitive currents in the
cable.
P3.1.2.2
Motor Switch
No
Yes
No
653
Prevents the drive from tripping when
a motor switch is located between the
drive and motor.
0 = No
1 = Yes
P3.1.2.4
Zero Freq Voltg
%
0
40
Varies
606
Defines the zero frequency voltage of
the U/f curve.
P3.1.2.5
Preheat Function
Not Used
Temp Limit
Not Used
1225
Defines the use of the PreHeat
Function (P3.1.2.5).
0 = Not Used
1 = Always in Stop State
2 = Controlled by Digital Input
3 = Temp Limit (based on Heat Sink)
P3.1.2.6
Preheat TempLimit
ºF
-20
80
0
1226
Defines the temperature the heat sink
falls below for pre-heating the motor
and drive when PreHeat Function
(P3.1.2.5) is set to Temp Limit.
P3.1.2.7
Preheat Current
A
0
.5*IL
Varies
1227
Defines the DC current to be use for
pre-heating the motor and drive when
PreHeat Function (P3.1.2.5) is set to
Stop State.
P3.1.2.9
U/f Ratio Select
Linear
Squared
Varies
108
Type of U/F curve between zero
frequency and the field weakening
point.
0 = Linear
1 = Squared
P3.1.2.15
Over Volt Contr
Disabled
Enabled
Enabled
607
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.