Electrically Connecting The Axial Piston Unit - Bosch rexroth HS5E Instruction Manual

56/104 A4... with HS5E(V)(L) control system Series 1x and 30 | Installation
Procedure
Bosch Rexroth AG, RE 92076-01-B/2021-04-22
To connect the axial piston unit to the hydraulic system:
1. Remove the protective plugs and/or threaded plugs from the ports where the
connections should be made according to the hydraulic circuit diagram.
2. Make sure the sealing surfaces of the hydraulic ports and functional surfaces are
not damaged.
3. Use only clean hydraulic lines or flush them before installation. (Observe chapter
7.5 "Performing flushing cycle" on page 57 when you flush the hydraulic
system.)
4. Connect the lines in accordance with the installation drawing and the machine
or system circuit diagram. Check that all ports are connected or plugged with
threaded plugs. With inside-reservoir installation, the housing of the axial piston
unit must be filled before fitting the lines and filling the reservoir with hydraulic
fluid.
5. Properly tighten the fittings (observe tightening torques!). Mark all properly
tightened fittings, e.g. with a permanent marker.
6. Check all pipes and hose lines and every combination of connecting pieces,
couplings or connecting points with hoses or pipes to ensure they are in safe
working condition.

7.4.9 Electrically connecting the axial piston unit

Short circuit due to penetrating hydraulic fluid!
Fluid can penetrate the product and cause a short circuit!
▶ Do not install axial piston units with electric components (e.g. electric controls,
sensors) in a reservoir below the fluid level (inside-reservoir installation).
The HS5M control is available for applications below the fluid level (see data
sheet 92076).
The machine/system manufacturer is responsible for electric control layout.
Electrically controlled axial piston units must be connected in accordance with the
electrical circuit diagram for the machine/system.
For axial piston units with electrical control and/or mounted sensors, observe the
parameters in data sheet 92076, e.g.:
• Permissible voltage range
• Permissible current
• Correct pin assignment
• An Ethernet M12 to RJ45 connection cable (ports X7E1 & X7E2), additional
information in type designation RKB0044/xxx.x (xxx.x: length in meters)
NOTICE