Reliance HR500 BLJC-08R Servo Drive Module | Replacement, Equivalent & Selection Guide
The Reliance HR500 BLJC-08R (P/N: 5RD1601) is a servo drive module from Reliance Electric’s HR500 series, designed for precision AC servo motion control in industrial automation systems. This guide covers technical specifications, compatible replacements, equivalent models, and selection criteria to help engineers and procurement teams make informed sourcing decisions — whether specifying the original part or evaluating alternatives.
Technical Specifications
- Manufacturer: Reliance Electric (now part of Rockwell Automation legacy)
- Series: HR500 Servo Drive
- Model Number: BLJC-08R
- Part Number: 5RD1601
- Module Type: AC Servo Drive / Servo Amplifier Module
- Drive Architecture: Closed-loop servo with encoder feedback
- Output Current Rating: 8A continuous (per BLJC-08R designation)
- Input Voltage: Compatible with HR500 chassis bus voltage (typically 460V AC 3-phase input)
- Control Interface: Analog ±10V reference / pulse-direction / HR500 system bus
- Feedback: Incremental encoder, resolver-compatible (model dependent)
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -25°C to 70°C
- Weight: Approx. 300 g
- Mounting: HR500 modular chassis slot-mount
- Protection Class: IP20 (panel-mount installation)
Compatible Replacement & Equivalent Models
When the original Reliance HR500 BLJC-08R is unavailable or end-of-life, the following options are commonly evaluated by engineers. Always verify electrical and mechanical compatibility before substitution:
- Reliance HR500 BLJC-08R / 5RD1601 — Direct OEM replacement (this item); preferred for plug-and-play compatibility.
- Reliance HR500 BLJC-08 (non-R variant) — Functionally similar; verify regenerative braking capability differences.
- Rockwell Automation / Allen-Bradley Ultra 3000 (2098-DSD-010) — Modern equivalent servo drive; requires re-engineering of feedback wiring and control interface.
- Rockwell Automation Kinetix 300 (2097-V33PR3) — Compact servo drive for retrofit applications; EtherNet/IP capable for modernized architectures.
- Yaskawa SGDV-R70A01A (Sigma-5 Series) — High-performance equivalent for new installations; superior dynamic response but requires full re-commissioning.
- Mitsubishi MR-J4-10A — Alternative servo amplifier for retrofit; compatible with standard AC servo motors but requires motor and encoder re-matching.
- Siemens SINAMICS S120 Booksize (6SL3120-1TE13-0AA3) — Enterprise-grade equivalent for large-scale motion system upgrades.
⚠ Substitution Note: Third-party equivalents require engineering validation of current rating, feedback type, bus interface, and tuning parameters. Contact Konmask.com for compatibility assessment before ordering a replacement.
Why Choose the Original Model
- Zero Re-Engineering: The original BLJC-08R drops directly into the existing HR500 chassis — no wiring changes, no parameter re-mapping, no re-commissioning downtime.
- Proven Field Reliability: HR500 series modules have decades of documented service life in demanding industrial environments.
- Exact Firmware Compatibility: OEM modules maintain full compatibility with existing HR500 system software and diagnostic tools.
- Minimized Downtime Risk: For running plants, using the original part eliminates integration risk during maintenance windows.
- Warranty & Traceability: Konmask.com supplies tested units with sourcing documentation — critical for regulated industries.
Typical Applications
- Machine Tool & CNC: Axis servo control for milling, turning, and grinding machines requiring precise positioning.
- Packaging Machinery: High-speed servo indexing, cut-to-length, and registration control on form-fill-seal lines.
- Printing & Converting: Web tension control, register servo, and nip roll drive applications.
- Robotics & Handling: Joint servo drives in Cartesian and SCARA robot arms for pick-and-place automation.
- Textile Machinery: Warp beam servo control, yarn tension regulation, and loom drive systems.
- Semiconductor & Electronics Assembly: High-precision motion stages requiring sub-millimeter repeatability.
- Material Handling: Servo-driven conveyor positioning, palletizer axis control, and AGV drive systems.
System Compatibility
- Chassis: Reliance HR500 modular servo chassis (verify slot count and power supply rating)
- Motors: Reliance HR500-compatible AC servo motors (verify encoder type: incremental vs. resolver)
- Controllers: Compatible with Reliance AutoMax, GE Fanuc Series 90, and analog ±10V command sources
- Software: Reliance HR500 configuration and diagnostic software (contact Konmask.com for software sourcing)
- Power Supply: HR500 chassis-integrated DC bus power supply module required
- Regenerative Option: BLJC-08R suffix denotes regenerative braking capability — confirm requirement before substituting with non-R variant
Selection Guide
Use the following criteria to select the correct servo module for your application:
- Step 1 — Current Rating: Match the module’s continuous output current (8A for BLJC-08R) to your servo motor’s rated current. Undersizing causes thermal trips; oversizing increases cost unnecessarily.
- Step 2 — Regenerative Requirement: If your application involves rapid deceleration or vertical loads, the R (regenerative) variant is mandatory to safely dissipate braking energy.
- Step 3 — Feedback Type: Confirm whether your servo motor uses an incremental encoder or resolver. Mismatched feedback types require a different module variant or interface card.
- Step 4 — Chassis Slot Availability: Verify available slots in your HR500 chassis. Each BLJC module occupies one slot; power budget must be confirmed with the chassis power supply rating.
- Step 5 — Control Interface: Confirm command source — analog ±10V, pulse-direction, or HR500 system bus — and ensure the module variant supports it.
- Step 6 — Retrofit vs. Repair: For legacy systems mid-lifecycle, OEM replacement is recommended. For end-of-life systems, evaluate modern equivalents with full re-engineering budget.
Quality Assurance & Sourcing
Konmask.com specializes in sourcing genuine, tested legacy and current-production servo drive modules for global industrial projects. Every Reliance HR500 BLJC-08R unit we supply undergoes:
- Visual Inspection: Component-level inspection for physical damage, burnt traces, capacitor bulge, and counterfeit indicators.
- Power-On Functional Test: Drive initialization and communication handshake verification where test fixtures are available.
- Traceability Documentation: Serial number logging and sourcing chain records available on request.
- ESD-Safe Packaging: Anti-static bags with moisture barrier and foam cushioning for safe international transit.
- 90-Day Warranty: Replacement warranty against defects in materials and workmanship from date of delivery.
We source from decommissioned plant inventories, verified surplus channels, and authorized distributors — never from unverified grey-market brokers.
How to Order
- Add to Cart directly on this page for standard lead times.
- Request a Quote for volume orders (3+ units) or urgent project timelines — email [email protected].
- Submit Your BOM — send your full project bill of materials and we will cross-reference availability, compatibility, and pricing across all line items.
- Expedited Sourcing: For shutdown/turnaround (TAR) emergencies, call +0086 19859288691 for same-day response.
- Export Documentation: Commercial invoices, packing lists, and certificates of origin provided for international customs clearance.
Replacement & Compatibility FAQ
Q: Is the Reliance HR500 BLJC-08R still in production?
A: The HR500 series is a legacy product line. Reliance Electric was acquired by Rockwell Automation, and new production of HR500 modules has been discontinued. Konmask.com sources tested surplus and refurbished units to support ongoing plant maintenance.
Q: What does the “R” suffix in BLJC-08R mean?
A: The “R” designates a Regenerative braking variant. This module can return braking energy to the DC bus rather than dissipating it as heat — essential for high-inertia or vertical-axis applications.
Q: Can I replace the BLJC-08R with a BLJC-08 (non-R)?
A: Only if your application does not require regenerative braking. For vertical loads, rapid deceleration cycles, or high-inertia loads, the non-R variant may cause DC bus overvoltage faults. Consult your drive system engineer before substituting.
Q: Will a modern Allen-Bradley or Yaskawa servo drive replace this module directly?
A: Not as a drop-in replacement. Modern servo drives require re-engineering of the feedback wiring, control interface, and parameter configuration. Budget for engineering time and commissioning when pursuing a modern retrofit.
Q: Do you supply the HR500 chassis and power supply as well?
A: Yes. Konmask.com can source complete HR500 system components including chassis, power supplies, and additional axis modules. Submit your full BOM for a comprehensive quote.
Q: What is the lead time for this part?
A: In-stock units ship within 1–3 business days. For out-of-stock situations, typical sourcing lead time is 2–6 weeks depending on market availability. Contact us for real-time stock status.
Q: Can you provide a test report for the unit?
A: Yes. Functional test reports and inspection records are available on request for units that have undergone our verification process. Please specify this requirement when placing your order.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
