1771-HRA Allen-Bradley Resolver Excitation Module | PLC 5

1771-HRA Allen-Bradley Resolver Excitation Module – Technical Overview

Technical Specifications – Allen-Bradley 1771-HRA

• Manufacturer: Allen-Bradley
• Model: 1771-HRA
• Series: PLC 5
• Type: Resolver Excitation Module
• Input frequency: 250 KHz differential input (max)
• Analog output: ±10V DC command signal
• Backplane current: 1.7 Amperes
• Module update period: 2 ms per axis
• Fuse voltage: 120 Volts
• Wiring arm: 1771-WA (required)
• Pulse capture time: 50 to 9,999 microseconds
• Output inductive load: 80 Ohms at 800 (max)
• Output current limit: 0.81A (min) – 0.35A (max)
• Signal delay: 2 seconds from power-up to output
• Power supply: Uses 1771-PS7 via 1771-CAS cable
• LED indicator: Green light for power statu

Frequently Asked Questions (FAQ)

• Q: Is the 1771-HRA compatible with the IMC 120 System?
  A: Yes, this module is specifically designed to provide sine/cosine excitation for the IMC 120 resolver feedback system.
• Q: What power supply does the 1771-HRA require?
  A: It uses the Allen-Bradley 1771-PS7 power supply which provides 5V, 15V, and 24V DC.
• Q: What is the output frequency of this module?
  A: The output frequency is fixed at 2.5 KHz with very low distortion (0.1% THD).
• Q: Do you have stock available?
  A: Yes, we maintain real stock of the 1771-HRA for immediate shipment.
• Q: What is your return policy?
  A: We offer a 30-day return window for unused items in original condition.
• Q: How long does delivery take?
  A: Delivery typically takes 3-5 business days via FedEx, UPS, or DHL.

Contact Information:
Email: sales@nex-auto.com
WhatsApp: +86 153 9242 9628
Partner: NexAuto Technology Limited