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VFD (Variable frequency drive)
Bosch Rexroth AB, Installation and maintenance manual, Hägglunds DOb, RE 15327-WA/05.2017
9.3.5 Group E: Function Control Parameters
9.3.5.1 1 E0: Set point and control parameters
Select the Frequency Setting Source
Different frequency setting sources can be selected by setting parameter E0.00 'First
frequency setting source' or E0.02 'Second frequency setting source'.
Code
Name
E0.00
First frequency setting source
E0.02
Second frequency setting source
• 0: Panel potentiometer
The speed frequency is set by the potentiometer on the operating panel.
• 1: Panel button setting
• The setting frequency is set by parameter E0.07 'Digital setting frequency'.
Pressing <▼> and <▲> buttons on the operating panel will decrease and increase
the output frequency respectively when the frequency converter is running.
• 2: AI1 analog input
The setting frequency is set by AI1 input.
3: AI2 analog input
The setting frequency is set by AI2 input.
• 11: Digital input Up / Down command
The setting frequency is set by command of Up / Down / Reset via digital inputs.
• 20: Communication
The setting frequency is set by engineering software, PLC or other external device
via Modbus protocol.
• 21: Multi-speed settings
The setting frequency is set by multi-speed settings.
• 99: Inactive
The frequency converter for controlling the main pump electric motor uses
potentiometer as first frequency setting source and AI2 input (PID control
reference) as second frequency setting source. The frequency converter for
controlling the cooler uses AI1 analog input (Frequency setting signal from
temperature sensor) as first frequency setting source.
Setting range
Default
Min
0...99
0
-
0...99
2
-
Attri.
Stop
Stop
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