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FcP 5020
7.9.3 Two Points / Double Pump Control
Code
F2.40 Relay 1 output
F2.41 Extension relay output
F4.03 Pump function control word
Two points / double pump se-
F4.28
lection
F4.29 Pump logic selection
F4.30 Pump Vg1
F4.31 Pump Vg2
Upper
pressure
F4.32
switching threshold
Lower
pressure
F4.33
switching threshold
Speed switching threshold ad-
F4.34
justment
Tab. 7-16: Parameter list of two points / double pump control
Choose different control mode and logic according to the type of pump by
F4.28.
For two points pump F4.30 (Vg1) reference the smaller displacement, and F3.31
(Vg2) represents the maximal displacement. For double pump F4.30 (Vg1) refer-
ence the main pump, and F3.31 (Vg2) is equal to the displacement of additional
pump.
According to the pressure feedback, actual speed, F4.32, F4.33 and F4.34, the
pump switching logic will be calculated and carried out via the relay output,
once the output has been set, see F2.40, F2.41.
DOK-RCON03-FCP5020****-QU02-EN-P
Name
0: No function assigned from
ASF
1: Converter warning
2: Two points / double pump
control
0...31
Bit0: Pump power limit
Bit1: Pump thermal protection
Bit2: Switch master to slave
Bit3: Two points / double
pump
Bit4: Pressure drop / over-
shoot compensation
0: Two points pump
1: Double pump
0: Positive
1: Negative
0...1,000 ccm
0...1,000 ccm
difference
0.0...350.0 bar
difference
0.0...350.0 bar
0.1...1.0
Block Diagram of Main Functions
Setting range
Bosch Rexroth AG
De-
Min.
Attri.
fault
0
-
Run
0
-
Run
0
-
Run
0
-
Stop
0
-
Stop
0
1
Stop
0
1
Stop
15.0
0.1
Stop
10.0
0.1
Stop
0.9
0.1
Stop
35/75
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