- Controls directly operated 4WRP 10 series 1X proportional directional valves
- Accepts two 0 to ±10 V command inputs from the machine control system
- Provides a 3.7 A / 50 VA solenoid output with two ramp-time functions
VT-VRPA2-537-10/V0/RTP is the Bosch Rexroth type code for material number 0811405120.
The Eurocard-format master amplifier processes analog command signals and drives the proportional-valve solenoid for the documented 4WRP 10 series 1X application.
Replacement approval must compare the full type code, material number, valve, output current, connector wiring, ramp functions and command-signal polarity.
Availability, condition, price, and shipping time for VT-VRPA2-537-10/V0/RTP / 0811405120 are confirmed during quotation.
Rexroth VT-VRPA2-537-10/V0/RTP / 0811405120 Manuals, Datasheets, Links
- Verify the 24 VDC supply, common reference and both ±10 V command channels
- Match the 3.7 A output to the exact 4WRP 10 series 1X valve solenoid
- Document ramp, deadband and machine-command settings before removing the old card
- De-energize the rack and valve circuit before inserting or removing the Eurocard
- Inspect DIN 41612 F32 connector alignment, keying and backplane contacts
- Seat and secure the card while maintaining the rack's specified cooling clearance
- Monitor connector condition, output-current behavior and valve response during service
- Keep the unit within the documented 0 to +70 °C ambient range
- Do not interchange predecessor or similar VT-VRPA cards without full circuit verification
- 4WRP 10 proportional directional-valve control
- Hydraulic axis command and ramp conditioning
- Legacy analog hydraulic-control retrofit and maintenance