1771-ID01 | Allen‑Bradley Isolated AC/DC Input Module for PLC‑5
1771‑ID01 is a 6‑channel isolated AC/DC input module for PLC‑5 systems. It accepts 184‑276 V AC or 18‑276 V DC inputs. Use it with limit switches, pushbuttons, or selector switches. Backplane current: 74 mA. Includes 1771‑WD wiring arm.
Oiltech Controls’s Insight
- This module fits universal I/O structures and PLC‑5 chassis.
- Directly connect to 220‑240 V AC output modules (use snubber or 3.3kΩ resistor).
- Same AC source for input and output ensures proper phasing and avoids damage.
Key Technical Data
- Brand: Allen‑Bradley (Rockwell Automation)
- Model: 1771‑ID01
- Type: Digital Isolated AC/DC Input
- Inputs: 6 channels
- AC voltage: 184‑276 V
- DC voltage: 18‑276 V
- Backplane current: 74 mA
- Off‑state current (AC): 0.7 mA max
- Off‑state current (DC): 1.0 mA max
- Signal delay (AC On): 20±10 ms
- Signal delay (DC On): 10±4 ms
- Dimensions: 89 x 165 x 51 mm (3.5 x 6.5 x 2.0 in)
Compatibility & Installation
- Works with PLC‑5 processors and 1771 I/O chassis.
- Use 1771‑WD field wiring arm (included).
- For output modules rated 220‑240 V AC, add an electrocube snubber or 3.3kΩ / 20W resistor.
- Connect input and output to the same AC source for correct phasing.
Typical Applications
- Float switches, limit switches, pushbuttons, selector switches.
- Isolated‑circuit multi‑phase systems.
- High‑power industrial control panels.
- Retrofit and upgrade of legacy PLC‑5 installations.
Professional FAQ (Experience & Selection Guide)
- Q: Can I use this module with 120 V AC sensors?
No. The AC range is 184‑276 V. For 120 V applications, choose 1771‑ID or 1771‑ID2 series. - Q: Why do I need a snubber or resistor when driving from an output module?
It suppresses inductive kickback and protects the input circuit. Use 3.3kΩ / 20W resistor between output and common. - Q: What happens if input and output use different AC phases?
Different phases may cause high voltage differential and damage the module. Always use the same source. - Q: Is this module compatible with 1771‑A4B or 1771‑A2B chassis?
Yes. All 1771 I/O chassis provide the necessary backplane power (74 mA). - Q: How do I select between AC and DC inputs on this module?
It accepts both automatically. Just apply the correct voltage within the specified range – no configuration needed.
Certifications & Quality
- CE marked for all applicable directives.
- UL listed and CSA certified.
- Rugged design for industrial environments.
Package & Warranty
- 1771‑ID01 module (6‑input isolated AC/DC).
- 1771‑WD field wiring arm included.
- 12‑month warranty against defects.
- Shipment within 24‑28 hours via FedEx, UPS, or DHL.
Why Buy From Oiltech Controls?
- 15+ years supplying industrial automation spares.
- Global logistics with express carriers.
- Tested surplus/refurbished stock with technical verification.
- 12‑month warranty on all products.
- Expert support for obsolete systems.
Contact: info@oiltechcontrols.com | +86 158 8020 0923 (WhatsApp)
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