7.5.7
Pump Thermal Protection
Code
Name
Setting range
Default
Min.
Attri.
F4.03 Pump function control word
0...31
Bit0: Pump power limit
Bit1: Pump thermal protection
Bit2: Switch master to slave
Bit3: Two points / double pump
Bit4: Pressure drop / overshoot compen‐
sation
0
-
Run
F4.36 Pump thermal protection speed
0…5,000 rpm
500
1
Stop
F4.37 Pump thermal protection time constant
0…6,000 s
0
1
Stop
Tab. 7-27:
Parameter list of pump thermal protection
The pump may overheat at a low speed due to the oil volume required for the
pump cooling may not be adequate. The pump thermal protection function
will detect if pump speed is lower than the speed limitation [F4.36], and trig‐
ger warning or error message according to [F4.37]. For details reference the
following table and figure.
This function can be activated by bit1 of F4.03.
Protection condition
F4.36 (protection speed) =
0rpm
F4.36 (protection speed) >
0rpm
F4.37 (protection time) =
0s
Inactive
Warning
F4.37 (protection time) >
0s
Inactive
Warning and error
Tab. 7-28:
Protection condition
Fig. 7-41:
Pump thermal protection
DOK-SYTROX-FCP5020****-IT01-EN-P
Bosch Rexroth AG
115/201
Frequency-controlled pump drive system Sytronix FcP 5020
Commissioning of Sytronix FcP 5020 System
