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FcP 5020
7.9.4 Pressure Drop / Overshoot Compensation
Pressure drop / overshoot compensation function helps to compensate the in-
coming pressure drop or overshoot by previously changing pressure command
with digital from customer PLC.
Code
Name
F2.16
...
X1...EX4 input
F2.24
F4.03 Pump function control word
Pressure boost for drop
F4.45
compensation
Pressure reduce for over-
F4.46
shoot compensation
Tab. 7-17: Parameter list of pressure drop / overshoot compensation
Set control bit: bit4 of F4.03 to active this function, and configure the corre-
sponding digital input Xn to 15 or 16 for compensation command (from custom-
er PLC). For a high input (=1), the pressure command will be modified with the
value from F4.45 / F4.46. If the digital input is 0, the effective pressure com-
mand value will be reset to original.
The switch time of digital input should be optimized according to application.
DOK-RCON03-FCP5020****-QU02-EN-P
Block Diagram of Main Functions
Setting range
0...19
20: Pressure drop compensation
trigger
21: Pressure overshoot compensa-
tion trigger
0...31
Bit0: Pump power limit
Bit1: Pump thermal protection
Bit2: Switch master to slave
Bit3: Two points / double pump
Bit4: Pressure drop / overshoot
compensation
0.0...1,000.0 bar
-1,000.0...0.0 bar
Bosch Rexroth AG
Default
Min.
Attri.
0
-
Stop
0
-
Run
0.0
0.1
Run
0.0
0.1
Run
37/75
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