Process
f
(%)
t
t
t
[P:010]
[P:302]
[P:701]
[P:017] = 0
0
1
0
1
Fig. 12: Rotation speed switch point active
Setting rotation speed switchpoint
Signal output and status parameters are based on the set value for rotation speed switchpoint [P:701].
►
Set the parameter [P:701] to the required value as %.
7.7.5 Rotation speed setting mode
Rotation speed setting mode reduces the speed and hence the throughput of the turbopump. The
pumping speed of the turbopump changes proportional to speed. Stand-by mode is ineffective during
rotation speed setting mode. The set value in rotation speed setting mode [P:707] sets the set rotation
speed. The rotation speed switch point varies with the set rotation speed. Falling below or exceeding
the set value in rotation speed setting mode activates or deactivates the status signal respectively
[P:306] SetSpdAtt.
Setting rotation speed setting mode
1. Set the parameter [P:707] to the required value in %.
2. Set the parameter [P:026] to "1".
3. Check the set rotation speed (parameter [P:308]).
7.7.6 Confirming speed specification
The typical nominal rotation speed of a turbopump is preset ex factory in the electronic drive unit. If the
electronic drive unit is replaced or a different pump type is used, the set value settings of the nominal
rotation speed is cleared. The manual confirmation of the nominal rotation speed is part of a redundant
safety system as a measure for preventing excess rotation speed.
Pump type Confirmation of nominal rotation speed [P:777]
CompactTurbo 071 | 071 P 1500 Hz
CompactTurbo 261/262 P 1000 Hz
CompactTurbo 261 P C 833 Hz
CompactTurbo 521 P 833 Hz
CompactTurbo 521 P C 715 Hz
HiPace 60 P 1500 Hz
HiPace 80 1500 Hz
HiPace 350 | 450 1100 Hz
HiPace 300 1000 Hz
HiPace 400 | 700 | 800 820 Hz
Tbl. 26: Characteristic nominal rotation speeds of the turbopumps
Prerequisite
●
Knowledge of the configuration and setting of electronic drive unit operating parameters.
Operation
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