The operational procedures for the REXROTH VT-TSPD-1-1X/V0/0 Proportional Directional Valve (R900208591)
REXROTH VT-TSPD-1-1X/V0/0 Proportional Valve (R900208591)
Installation & Operational Protocol
1. Pre-Operation Safety
CRITICAL PRECAUTIONS:
- Depressurize hydraulic system & lock out power (ISO 4413/EN 982 compliance).
- Verify valve label matches R900208591 and SIL 2/PLd certification (ISO 13849-1).
- Ground valve body directly (resistance <0.1Ω) to prevent electrostatic discharge.
2. Hydraulic Integration
mermaidCopy Code
graph TB
A[Clean Ports ISO 4406 ≤17/15/12] --> B[Install Filter <10 µm]
B --> C[Connect Ports:<br/>• P: Pressure (max 315 bar)<br/>• T: Tank<br/>• A/B: Actuator Lines]
C --> D[Torque Mounting Bolts: 25 Nm ±5%]
D --> E[Leak Test at 1.5x Operating Pressure]
Validation: Cycle valve 5x at 10% command before full operation.
3. Electrical Wiring
| Terminal | Function | Specification |
|---|---|---|
| 1 (+) | +24VDC (L+) | ±10% ripple max. |
| 2 (–) | 0V Reference (M) | Isolated ground required |
| 3/4 | ±10V Command Signal | Impedance >100 kΩ |
| 5/6 | LVDT Position Feedback | SSI interface (13-bit) |
| 7/8 | Enable/Diagnostic (PNP) | 24VDC, 100mA max. |
🔌 Cable Requirements: Shielded CY cable (min. 0.75mm²) with IP67 connectors.
4. Commissioning Sequence
- Manual Override Test:
- Rotate manual override screw (hex 5mm) to verify spool movement.
- Signal Calibration:
- Apply 0V → Spool neutral (confirmed via LVDT feedback)
- Apply +10V → Full stroke A port (90% max. flow)
- Apply -10V → Full stroke B port
- Dynamic Response Tuning:
- Adjust ramp time (dipswitch S1):
- Position 1 ON: 50ms rise time
- Position 2 ON: 100ms (default)
- Adjust ramp time (dipswitch S1):
5. Status Diagnostics
| LED | Color | State | Meaning |
|---|---|---|---|
| PWR | Green | Stable | 24VDC OK |
| ACT | Yellow | Flashing (1Hz) | Command signal active |
| ERR | Red | Solid | Overcurrent/Coil fault |
► Fault Reset: Cycle enable signal (Terminal 7) OFF→ON.
6. Maintenance Schedule
| Task | Interval | Tool/Standard |
|---|---|---|
| Coil resistance check | 6 months | Ohm-meter (20°C: 19Ω±10%) |
| Spool contamination inspection | 2,000 hrs | ISO 4406 particle count |
| Full stroke test | 12 months | Bosch VT-MHA software |
7. Critical Notes
- Fluid Compatibility: Mineral oil (HFD-R compliant) only.
- Zero Offset Adjustment: Use calibration screw (sealed hex 3mm) if LVDT neutral drift >±0.5%.
- Never disassemble solenoid cartridges – return to REXROTH for service.
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