Fig. 7-7:
Motor Parameters and Auto-Tuning
Fig. 7-8:
Motor type plate
Now depending if your drive system is uncoupled or coupled with the hydraul‐
ic system you have to choose "Static" or "Rotational" auto-tuning.
Uncoupled (system can rotate without building pressure)
- > Rotational tuning
Coupled with load and valve open (system can rotate without building pres‐
sure higher then 5 bar because of coupled hydraulic system behavior)
- > Rotational tuning
Coupled with load and valve closed (system cannot rotate without building
pressure valve on the high pressure side is closed and or leakage is not high
enough, cylinders are in hard stops or have high friction)
- > Static auto-tuning
However rotational auto-tuning is suggested when using SVC, which is nee‐
ded in DRn5020, but the hydraulic application must be made sure, that no
pressure can build up while tuning e.g. load valve open, cylinder systems.
Even dynamic pressure should not reach more than 5 bar, which is decided
by fluid speed. If the user is unsure, pressure feedback should be monitored
while the tuning is done.
Bosch Rexroth AG
DOK-SYTROX-DRN5020****-IT05-EN-P
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Frequency-Controlled Pump Drive System Sytronix DRn 5020
Commissioning of Sytronix DRn 5020 System
