7.9 Extension Functions
7.9.1 Master / Slave Function
Master / slave pump function is designed for multi-pump working as a group to
achieve a larger flow. In this application, a master converter is needed to control
the speed / flow of slave pumps.
Code
Name
Setting range
Default
Min.
Attri.
F1.11 Flow command source
0: Depend on the value of F1.14
1: Analog input (positive/nega-
tive)
2: Communication
3: Select by digital input (F1.14
shows status)
0
-
Stop
F2.08 Flow command correspond-
ing to 5V, 10V or 20mA
1...5,000 rpm
400
1
Stop
F2.09 Flow command null offset in V
or mA
0.0...5.0 V, mA
0.0
0.1
Stop
F2.31 AO1 output
0: No function assigned from ASF
1: Pressure command (scaled by
F2.04)
2: Pressure feedback (scaled by
F2.06)
3: Setting speed (include direc-
tion) (scaled by F2.08)
4: Output speed (include direc-
tion) (scaled by F2.08)
0
-
Run
F2.32 EAO output
0
-
Run
F3.03 Filter time for flow command 0...999 ms
4
1
Run
F4.03 Pump function configuration
word
0...63
Bit0: Pump power limit
Bit1: Pump thermal protection
Bit2: Switch master to slave
Bit3: Two points / double pump
Bit4: Pressure drop / overshoot
compensation
Bit5: Activating myCro
0
-
Stop
F4.20 p/Q command soft start delay 0.0...1,000.0 s
0.0
0.1
Stop
F4.24 Maximum flow command limit [F4.23]...5,000 rpm
3,000
1
Stop
Bosch Rexroth AG
Block Diagram of Main Functions
FcP 5020
34/83
DOK-RCON03-FCP5020****-QU04-EN-P