Control Reference Settings (M3.3) - Siemens bt300 Operator's Manual

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).
Structure Parameter
P3.3.1 Min Frequency
P3.3.2 Max Frequency
P3.3.3 I/O A Ctrl Ref
P3.3.4 I/O B Ctrl Ref
P3.3.5 Keypad Ctrl Ref
Siemens Industry, Inc.
Building Technologies
Table 26: Control Reference Settings.
Unit Min
Hz 0 Parameter P3.3.2
Hz Parameter 320
P3.3.1
PresetFreq0 Motor Pot Ref
PresetFreq0 Motor Pot Ref
PresetFreq0 Motor Pot Ref
Siemens BT300 HVAC Drive
Chapter 4 - Parameters and Menu Structure
Max Default
0 101
60 102
AI1 + AI2 117
AI1 131
Keypad Ref 121
Parameters (M3)
ID Description
Minimum allowed frequency
reference
Maximum allowed frequency
reference
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.
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.
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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DPD01809
2016-06-07