7.1.3
Main Functions
Load Pump Parameters
Before the speed adaptation of the "Sytronix-DRn" function can be used,
some settings have to be made to configure the EFC drive system. The de‐
fault values are a good base to start. Only "F1.05 Command value: Pressure"
must be configured for your mechanical DR/DRG pressure control set point.
Code
Name
Setting Range
Default
Attri.
F1.05
Command value: Pressure
5.0...1,000.0 bar
5.0
Run
F3.19
Speed adaptation: Minimum speed
0...10,000 rpm
300
Run
F3.20
Speed adaptation: Maximum speed
0...10,000 rpm
1,000
Run
F3.29
Start-up time
0...30,000 ms
2,000
Run
F4.29
Pump type
0...31
1
Stop
F4.30
Pump: Maximum displacement
1.0...5,000.0 ccm
18.0
Stop
F4.50
Pump: Maximum angular acceleration
0...60,000 rad / s
2
1,500
Stop
F4.51
Pump: Maximum speed
0...10,000 rpm
1,000
Stop
F4.52
Pump: Minimum speed
0...10,000 rpm
300
Stop
F4.53
Pump: Inertia mantissa
0...10,000 *
100
Stop
F4.54
Pump: Inertia exponent
0...10 *
5
Stop
Tab. 7-1:
Parameter list of system configuration
*: F4.53, F4.54 have no dimension on its own. The value calcula‐
ted by the mantissa and exponent has the dimension kgm
2
.
F3.19 Speed adaptation: Minimum speed
This parameter limits the minimum speed of the speed adaptation.
●
With low flow rates, the limitation of the minimum speed causes the ac‐
tual swivel angle value to stationarily fall below the command value from
F1.09.
●
When loads are switched on, a low minimum speed can reduce the dis‐
turbance rejection of pressure control (cf. boost function in
).
F3.20 Speed adaptation: Maximum speed
This parameter limits the maximum speed of the speed adaptation.
●
The maximum speed may not exceed the allowed limit values of the
A10 pump used.
●
The drive is accelerated to the parameterized speed, if a pressure drop
is detected or when the speed adaptation has been deactivated (cf.
chapter "Boost Function" on page 76
and
F3.29 Start-up time
Setting drive enable (X1 as default) and activating DRn enable (Digital input
X3 by default or ASF control word F0.20 from communication) starts the "Sy‐
tronix-DRn" function. At the beginning, the drive is accelerated in linear form
to the maximum speed parameterized in F3.20 within the defined start-up
time F3.29. The function can also be started from master communication, see
Bosch Rexroth AG
DOK-SYTROX-DRN5020****-IT05-EN-P
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Frequency-Controlled Pump Drive System Sytronix DRn 5020
Commissioning of Sytronix DRn 5020 System
