Table of Contents
Advertisement
Self-contained axis
40 / 60
Modes of operation
- = 2/2 directional seat valve not energized
1)
- = 2/2 directional seat valve energized
2)
Basic position
● The motor is off / de-energized and all valves are without current.
● The pressure medium is blocked by the 2/2 directional seat valves.
Extend force traverse
● Motor direction of rotation clockwise, the motor speed according to the
● The 2/2 directional seat valves VA and VB are switched/energized.
● The pressure medium is conveyed from the rod side of the cylinder B via the
● The additional differential volume is "sucked" out of the compensator via a
● The cylinder extends.
Extending reduced-force rapid traverse (regenerative mode)
Only possible with version "R".
● Motor direction of rotation clockwise, the motor speed according to the
● The 2/2 directional seat valves VA and VR are switched/energized.
● The pressure medium is conveyed by the pump via the 2/2 directional seat
● The displacement additionally conveys the pressure medium from the rod
● The additional differential volume is "sucked" out of the compensator via a
● This enables the travel velocity to be nearly doubled compared to the "exten-
● As a result of the area ratios of the differential cylinder, the force generated
● The cylinder extends in a reduced-force rapid traverse.
Retraction
● Motor direction of rotation counterclockwise, the motor speed according to
● The 2/2 directional seat valves VA, VB and VE are switched/energized.
● The pressure medium is conveyed from the piston side of the cylinder A via
● The differential volume from the piston side A is conveyed via the valve VE
● The cylinder retracts.
Hold force generated by pressure
● The motor is off / de-energized.
● The 2/2 directional seat valve VB is switched/energized.
● Thus, the pressure in the rod side of the cylinder B is maintained by the
Hold traction force
● The motor is off / de-energized.
● The 2/2 directional seat valve VA is switched.
● Thus, the pressure in the piston side of the cylinder A is maintained by the
Bosch Rexroth AG
speed requirement on the cylinder.
2/2 directional seat valves VB and VA into the piston sides of the cylinder A.
check valve.
speed requirement on the cylinder.
valve VA into the piston side A of the cylinder.
side B via the 2/2 directional seat valve VR into the piston side A.
check valve.
sion of the force traverse".
by pressure is reduced by about half. (For gear ratio, see the
the self-contained axis).
the speed requirement on the cylinder.
the 2/2 directional seat valves VA and VB into the rod sides of the cylinder B.
into the compensator.
pump via the 2/2 directional seat valve VB.
pump via the 2/2 directional seat valve VA.
⮫ data sheet
of
RE62290-B, 05.22
Advertisement
Table of Contents
