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 Setting range Default Min. Attri.
F2.16
...
F2.25
X1...EX5 input
0...19, 22: See tab. 8-2 "Parame-
ter list of group F2" on page 66
20: Pressure drop compensation
trigger
21: Pressure overshoot compensa-
tion trigger
0 - Stop
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
F4.45
Pressure boost for drop
compensation
0.0…1,000.0 bar 0.0 0.1 Run
F4.46
Pressure reduce for over-
shoot compensation
-1,000.0…0.0 bar 0.0 0.1 Run
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.
Bosch Rexroth AG
Block Diagram of Main Functions
FcP 5020
40/83
DOK-RCON03-FCP5020****-QU04-EN-P
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