1.3.3
Symbols
The following symbols indicate notices which are not safety-relevant but in‐
crease the comprehensibility of the documentation.
Symbol
Meaning
If this information is not observed, the product cannot be used
and/or operated optimally.
•
Single, independent action.
1.
2.
3.
Numbered instruction: The numbers indicate that the actions must
be carried out one after the other.
Tab. 1-2:
Meaning of the symbols
1.3.4
Abbreviations
The following abbreviations are used in this documentation:
Abbreviation
Meaning
DRn system
Frequency controlled pump system
p
Pressure
Q
Flow
n
Speed
DR
Pump integrated mechanical pressure controller
DRG
Pump integrated mechanical pressure controller for remote control
α
Swivel angle of the axial piston pump
RE
Rexroth document in English language
RX
Rexroth document in another language
ESD/EMC
Electrostatic discharge/electro-magnetic compatibility
CPU
Central processing unit, processor
EFC
Frequency converter
Vg
Displacement of the pump
ASF
Application Specific Firmware, application control software for EFC
frequency converter
X1, X2, ..
Digital input
EX1, EX2, ...
Digital input on extension card
AI1, AI2
Analog input
EAI
Analog input on extension card
DO1
Digital output
EDO
Digital output on extension card
AO1
Analog output
EAO
Analog output on extension card
Tab. 1-3:
Abbreviations
Bosch Rexroth AG
DOK-SYTROX-DRN5020****-IT05-EN-P
10/143
Frequency-Controlled Pump Drive System Sytronix DRn 5020
About this Documentation
