Product Introduction

The Reliance Electric DASR-6 MD-B7005D emerges as a sophisticated digital AC servo drive controller, meticulously designed by Reliance Electric for high-performance motion applications in the robust DASR series. This advanced module harnesses a 32-bit DSP core to deliver precise 6 kVA power management, supporting versatile velocity, torque, and position control modes that synchronize with brushless AC servo motors via high-resolution encoder feedback. Positioned as a mid-tier powerhouse in industrial automation, the Reliance Electric DASR-6 MD-B7005D integrates seamlessly into legacy and modern systems, processing real-time commands from PLCs or motion coordinators to execute complex trajectories with sub-millisecond response times. Its core functions encompass adaptive tuning algorithms and regenerative braking, ensuring energy-efficient operation while safeguarding against overloads in dynamic environments.

Within the DASR platform, the Reliance Electric DASR-6 MD-B7005D excels in fault-tolerant architectures, where its modular firmware allows for field-upgradable enhancements like advanced PID loops and vibration suppression filters. Certified to UL and CE standards, it occupies a technical sweet spot for applications demanding 12 A continuous output without compromising on compactness or scalability. In expansive automation ecosystems, this controller plays a pivotal role by bridging field devices and upper-level networks, enabling predictive maintenance through embedded diagnostics that log operational metrics for trend analysis.

By incorporating the Reliance Electric DASR-6 MD-B7005D, industries gain a reliable conduit for enhanced productivity, where its intuitive parameter setup via serial interfaces minimizes commissioning hurdles. This drive not only upholds rigorous performance benchmarks but also contributes to system-wide resilience, fostering longer mean time between failures and streamlined upgrades that align with evolving manufacturing paradigms.

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Description

Parameter name	Parameter value
Product model	DASR-6 MD-B7005D
Manufacturer	Reliance Electric
Product category	Digital AC Servo Drive Controller
Power Rating	6 kVA
Control Modes	Velocity, Torque, Position
Input Voltage	380-480 VAC, 3-phase, 50/60 Hz
Output Current	12 A (continuous), 24 A (peak)
Processor Type	32-bit Digital Signal Processor
Dimensions	320 x 200 x 150 mm (H x W x D)
Weight	8.5 kg
Operating Temperature	0°C to 50°C
Communication Protocol	RS-232/RS-485, Analog I/O
Installation Method	Panel Mount with DIN Rail Option
Protection Rating	IP20

Core Advantages and Technical Highlights

Advanced Control Precision: The Reliance Electric DASR-6 MD-B7005D deploys a 32-bit DSP at 40 MHz to orchestrate servo loops with bandwidths up to 2 kHz, delivering velocity regulation within 0.01% across 0-6000 RPM ranges and torque accuracy of ±1% under 200% overload conditions for 3 seconds. Its position mode supports incremental or absolute encoders up to 20-bit resolution, facilitating point-to-point moves with 0.005° repeatability—ideal for contouring tasks where traditional analog drives falter.

Efficient Power Architecture: Drawing from 380-480 VAC inputs, the Reliance Electric DASR-6 MD-B7005D generates sinusoidal PWM outputs at 10 kHz switching frequencies, minimizing harmonic distortion below 3% THD while incorporating a dynamic braking chopper for 50% energy recovery during deceleration. This design sustains 12 A RMS continuous duty, with thermal derating curves ensuring stability up to 50°C, as demonstrated in endurance tests yielding 20% lower cooling requirements compared to predecessor models.

Unwavering Reliability Measures: Fortified with conformal-coated PCBs and over-temperature sensors triggering at 85°C, the Reliance Electric DASR-6 MD-B7005D achieves MTBF ratings over 200,000 hours, bolstered by real-time fault monitoring for short circuits, ground faults, and encoder loss—isolating issues in under 50 µs to prevent cascade failures. Integrated EMC filters comply with EN 61800-3 Category C2, reducing installation costs by eliminating external chokes in most setups.

Broad Compatibility Framework: Native support for analog ±10 V commands and pulse/direction inputs up to 1 Mpps ensures the Reliance Electric DASR-6 MD-B7005D interfaces effortlessly with Allen-Bradley PLCs and legacy Reliance Flex drives, while RS-485 ports enable multi-axis daisy-chaining for up to 16 units. Firmware revision MD-B7005D introduces expanded I/O with 8 opto-isolated inputs for limit switches, enhancing integration in safety-rated zones per ISO 13849-1.

Simplified Operation and Diagnostics: A detachable keypad with 4-line LCD provides on-the-fly parameter access, including auto-tuning wizards that converge gains in 30 seconds for inertias up to 100 kg·m². The Reliance Electric DASR-6 MD-B7005D logs up to 1000 events in non-volatile memory, exportable via RS-232 for PC-based analysis, slashing troubleshooting time by 50% through graphical waveform captures of current and speed profiles.

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