Allen-Bradley 1771-IBN 32-Channel DC Input Module

Allen-Bradley 1771-IBN 32‑Point DC Input Module – Precision & Reliability

Technical Specifications (Detailed)

• Brand: Allen‑Bradley
• Catalog Number: 1771‑IBN (Series C)
• Module Type: Digital DC input, 32 points (4 sets of 8)
• DC Operating Voltage: 10‑30 VDC (nominal 24 VDC); voltage category 10‑60 VDC sink (source load)
• On‑state voltage (min): 10 VDC / Off‑state voltage (max): 5 VDC
• Input Current: 4.7 mA @10 VDC up to 15.6 mA @30 VDC
• Off‑state Current (max): 1.7 mA @5 VDC
• Signal Delay (DC On/Off): 6 ms ±2 ms (digital filter)
• Backplane Current (5 VDC): 280 mA
• Power Dissipation: 16.4 W max / 5.1 W min (53.3 BTU/hr max)
• Physical Dimensions: 3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
• Wiring Arm: 1771‑WN (included); accepts 22…14 AWG copper wire, insulation ≤ 1.2 mm, torque 1.0 N‑

Frequently Asked Questions (FAQ)

• What is the difference between ON‑state and OFF‑state voltage on the 1771‑IBN?
  The module recognises a minimum of 10 VDC as logic ON; it stays OFF when voltage drops below 5 VDC (max off‑state).
• Can I use this module with 24V AC signals?
  No, the 1771‑IBN is strictly DC‑coupled; it requires 10‑30 VDC. For AC signals consider a dedicated AC input module.
• Does the module include built‑in noise filtering?
  Yes, the 6 ms (±2 ms) delay comes from a digital filter that attenuates electrical noise.
• How many inputs share a common return?
  Inputs are arranged in four groups of eight; each group has its own common terminal.
• What is the typical lead time?
  We ship within 5 days after order confirmation – stock is readily available.
• Which shipping carriers do you use?
  We dispatch via DHL, FedEx, or UPS – whichever suits your location best. Tracking will be provided.
• What is the return policy?
  We accept returns within 30 days if the item is unopened and in original packaging.
• Can I get the wiring diagram for the 1771‑WN arm?
  Absolutely – the user manual (PDF) contains detailed wiring diagrams; request it via email and we will send it immediately.

Contact Information – Inquiries:
Email: sales@nex-auto.com
WhatsApp: +86 153 9242 9628
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