Operating Instructions

Chapter 4 - Parameters and Menu Structure
Parameters (M3)
78 | 187
Siemens Industry, Inc.
Siemens BT300 HVAC Drive
DPD01809
Smart Infrastructure
2019-05-29
Protections (M3.9)
Protections define the way the drive is to respond to conditions that can occur in the drive.
Table 46: Protections Settings.
Structure
Parameter
Unit
Min
Max
Default
ID
Description
P3.9.1
AI Low Fault
No Action
Fault, Coast
No Action
700
Defines the response to a low analog
input signal. Response settings are as
follows:
0 = No Action
1 = Alarm
2 = Alarm and run to PresetAlarmFreq
(P3.3.19)
3 = Fault (stop according to stop mode)
4 = Fault (stop by coasting)
P3.9.2
External Fault
No Action
Fault, Coast
Fault
701
Defines the response to activation of an
Ext Fault Close (P3.5.1.7) or Ext Fault
Open (P3.5.1.8). Response settings are
as follows:
0 = No Action
1 = Alarm
2 = Fault (stop according to stop mode)
3 = Fault (stop by coasting)
P3.9.3
InputPhaseFault
3-phase
1-phase
3-phase
730
Defines the input phase support.
0 = 3-phase support
1 = 1-phase support
NOTE : If single phase supply is used, 1-
phase support must be selected.
P3.9.4
Undervoltage Flt
Fault Stored
No History
Fault Stored
727
Defines if the under-voltage fault is
stored in the fault history or not.
0 = Fault Stored
1 = No History
P3.9.5
OutputPhase Flt
No Action
Fault, Coast
Fault
702
Defines the response to an output phase
loss. Response settings are as follows:
0 = No Action
1 = Alarm
2 = Fault (stop according to stop mode)
3 = Fault (stop by coasting)
P3.9.6
Motor Therm Prot
No Action
Fault, Coast
Fault
704
Defines the response to a motor thermal
protection. Response settings are as
follows:
0 = No Action
1 = Alarm
2 = Fault (stop according to stop mode)
3 = Fault (stop by coasting)
P3.9.7
MotAmbient Temp
ºF
-4
212
104
705
Defines the ambient temperature that is
to generate a response to a Motor
Thermal Protection fault as defined by
Motor Therm Prot (P3.9.6.
P3.9.8
ZeroSpeedCooling
%
5
150
60
706
Defines the cooling factor at zero speed
in relation to the point where the motor is
running at nominal speed without
external cooling.
P3.9.9
ThermTimeConst
min
1
200
Varies
707
The time constant is the time within
which the calculated thermal stage has
reached 63% of its final value.