Chapter 4 - Parameters and Menu Structure
Parameters (M3)
47 | 180
Siemens Industry, Inc.
Siemens BT300 HVAC Drive
DPD01809
Building Technologies
2016-06-07
Control reference settings (M3.3)
The frequency reference source is programmable for all control places except the computer, which always takes the
reference from the PC tool.
Auto Control Place I/O A: The source of frequency reference can be selected with I/O Control Reference A
Selection (P3.3.3). The I/O B Reference Force (P3.5.1.6) will determine when the I/O Control Reference B is in use.
Auto Control Place I/O B: The source of frequency reference can be selected with I/O Control Reference B
Selection (P3.3.4). The I/O B Reference Force (P3.5.1.6) will determine when the I/O Control Reference B is in use.
Keypad (Hand) Control Place: The source of the frequency reference can be selected with Keypad Control
Reference Selection (P3.3.5). If set to a value of Keypad Reference; then the keypad buttons or Keypad Reference
(P3.3.6) can be used to set the frequency reference.
Fieldbus Control Place: The source of the frequency reference can be selected with Fieldbus Control Reference
Selection (P3.3.9).
Table 26: Control Reference Settings.
Structure
Parameter
Unit
Min
Max
Default
ID
Description
P3.3.1
Min Frequency
Hz
0
Parameter P3.3.2
0
101
Minimum allowed frequency
reference
P3.3.2
Max Frequency
Hz
Parameter
P3.3.1
320
60
102
Maximum allowed frequency
reference
P3.3.3
I/O A Ctrl Ref
PresetFreq0 Motor Pot Ref
AI1 + AI2
117
Selects location of frequency setpoint
source when in I/O A control. In the
following list of possible settings, the
main setpoint is selected:
1 = Preset Freq 0
2 = Keypad Reference
3 = Fieldbus
4 = AI1
5 = AI2
6 = AI1+AI2
7 = PID 1 Reference
8 = Motor Potentiometer
Also see M1.10.
P3.3.4
I/O B Ctrl Ref
PresetFreq0 Motor Pot Ref
AI1
131
Selects location of frequency setpoint
source when in I/O B control. In the
following list of possible settings, the
main setpoint is selected:
1 = Preset Freq 0
2 = Keypad Reference
3 = Fieldbus
4 = AI1
5 = AI2
6 = AI1+AI2
7 = PID 1 Reference
8 = Motor Potentiometer
I/O B Ref Force (P3.5.1.6) is used to
determine when this reference is to
be followed.
P3.3.5
Keypad Ctrl Ref
PresetFreq0 Motor Pot Ref
Keypad Ref
121
Defines the location of Keyboard
Control Reference:
1 = Preset Freq 0
2 = Keypad Reference
3 = Fieldbus
4 = AI1
5 = AI2
6 = AI1+AI2
7 = PID 1 Reference
8 = Motor Potentiometer
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