Key Technical Specifications
- Product Model: HMV01.1R-W0018-A-07-NNNN
- Manufacturer: REXROTH
- System Platform: IndraMotion / IndraDrive Hydraulic Control
- Control Type: Proportional / Digital Electro-Hydraulic
- Rated Voltage: 24 VDC ±10%
- Max Current Consumption: 2.5 A
- Control Signal Input: 0–10 V / ±10 V analog input or fieldbus digital control
- Signal Resolution: 12-bit internal DAC for proportional control
- Communication Interface: CANopen, EtherCAT (optional configuration)
- Operating Temperature: -20°C to +70°C
- Storage Temperature: -40°C to +85°C
- Protection Class: IP20 / IP65 (with cover)
- Response Time: ≤ 2 ms for step change control
- Load Capacity: 10 W continuous output to proportional solenoids
- MTBF: 100,000 hours (at rated load, IEC 61508 compliant)
- Certifications: CE, UL, RoHS, ISO 13849-1 functional safety compatible
- Mounting Type: DIN rail or direct valve interface
- Environmental Resistance: Vibration 5–500 Hz, 2 g; Shock 15 g / 11 ms
Technical Architecture & Functional Positioning
This module serves as a high-precision interface between digital control logic and hydraulic actuators in industrial and mobile hydraulic systems. Its architecture is designed to ensure rapid and precise electro-hydraulic conversion with minimal overshoot and fast response.
The HMV01.1R module employs proportional control technology with integrated digital-to-analog conversion. Each channel features isolation amplification circuits to minimize interference between high-current solenoid outputs and sensitive analog feedback. The module supports redundant signal pathways to ensure continuous operation even under partial hardware failure, a key requirement for safety-critical hydraulic applications such as heavy machinery positioning and industrial presses.
From an engineering perspective, this design solves multiple critical problems:
- Improved System Reliability: Redundant signal paths and overcurrent protection prevent valve damage and unintended motion.
- High Accuracy Flow Control: 12-bit DAC resolution and fast response ensure precise actuator positioning.
- Simplified Field Commissioning: Standardized digital communication interfaces enable plug-and-play integration with IndraMotion and IndraDrive systems.
Typical Application Scenarios
- Applied in industrial CNC machining centers for high-speed hydraulic tool clamping and workpiece positioning.
- Used in mobile construction machinery for proportional hydraulic actuator control in excavators and loaders.
- Serves as an OEM-compatible replacement for legacy Rexroth hydraulic control modules.
- Supports hydraulic system retrofits to improve response time, accuracy, and safety.
- Utilized in offshore hydraulic handling equipment, rated for vibration and temperature extremes.
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