Product Details
The ABB AGPS-21C, also cataloged as the AGPS-21C Power Supply, oABB LD GRB-01 Gray Encoder Board
The ABB LD GRB-01 4HZR300001, also cataloged as the LD GRB-01 Gray Encoder Board, operates as a dedicated hardware component for position feedback acquisition and absolute Gray code processing within ABB drive and controller networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | LD GRB-01 (4HZR300001) |
| Brand | ABB |
| Origin | Sweden |
| Weight | 1.00 kg |
| Operating Temp | Standard Cabinet Ambient (-10 to 60 deg C) |
| Power Consumption | 24 VDC Control Bus Power |
| Signal Interface | Gray Code Optical Encoder Input |
| Module Category | Encoder Evaluation Boards |
| System Platform | ABB Drive & Automation Control Platforms |
Deterministic Network Integration and I/O Density Scaling
The LD GRB-01 interface board conditions optical encoder pulses into digital multi-bit position vectors, routing raw sensor data across Profinet and EtherNet/IP deterministic networks. High-speed backplane bus communication velocity allows synchronous position updates during high-velocity motion execution. Compact PCB trace architecture supports maximum I/O density scaling inside control racks, while onboard EEPROM registers ensure full firmware flash compatibility during controller startup and system parameter synchronization.
Frequently Asked Questions
Q: Does the LD GRB-01 support hot-swapping while the host control rack remains powered?
A: No, primary control supply power must be isolated before removing or inserting the encoder module to avoid voltage transients on the digital sensor lines.
Q: How is signal shielding terminated on the LD GRB-01 board interface?
A: Encoder cable shields must be grounded at the designated terminal clip on the chassis frame to ensure noise suppression across high-frequency Gray code channels.
Q: What power source energizes the LD GRB-01 digital evaluation logic?
A: The board receives its internal operating voltage directly from the 24 VDC rack power bus via backplane pin connectors.
Field Installation Guidelines
- Disconnect all main drive power circuits and auxiliary 24 VDC supplies before inserting or extracting the encoder board from the rack slot.
- Wear a grounded anti-static wrist strap during module handling to prevent electrostatic discharge damage to high-density CMOS components.
- Verify that optical encoder wiring shield conductors are connected to functional earth using a low-impedance grounding clamp.
- Align board edge guides carefully with card cage tracks before pushing firm engagement into the rear backplane socket.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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