Bosch Rexroth CytroMotion, Operating Instructions Manual

Page: 20 / 60

20 / 60
Self-contained axis
Product description
Bosch Rexroth AG RE62290-B, 05.22
Fig. 1: Self-contained axis (without hood)
1 Cylinder unit / actuator
2 Motor-pump group
3 Control block
4 Position measurement system (optional)
5 Compensator (low-pressure accumulator)
Cylinder unit / actuator
The cylinder unit of the compact axis converts flow and pressure into a linear
movement with force.
Motor-pump group
The motor-pump group provides hydraulic power as required.
Valve block
Switching the 2/2 directional seat valves (VA, VB, VE and VR) used allows
for the implementation of various functions such as retraction and extension
of the cylinder and holding the cylinder in place; it also provides the option
of switching on the rapid traverse, see
⮫
Chapter 9.1 Modes of operation
on page 39 ). The pressure transducers SA, SB and SK used monitor the
working pressures and the compensator pressure. In addition, the pressures
are limited by the pressure relief valves used.
Position measurement system (optional, cylinder version “S”)
The piston position is detected by an installed absolute position measurement
system.