IC697MDL254 GE Fanuc 48V AC Input Module – 32 Points Series 90-70

Module Overview

• IC697MDL254 – GE Fanuc discrete input module for Series 90-70.
• 48 V AC rated, 32 input points in 4 isolated groups of 8.
• Each group can connect to a separate AC phase.
• IEC type‑1 characteristics – compatible with proximity switches and limit switches.

Key Technical Specifications

• Brand: GE Intelligent Platforms / GE Fanuc
• Model: IC697MDL254
• Series: Series 90‑70
• Input voltage: 48 V AC
• Input points: 32 (4 groups x 8)
• Input current: 4.7 mA (typical)
• Backplane current draw: 0.30 A at 5 V
• Frequency: 47–63 Hz
• LED indicators: Per‑point on/off status
• Mechanical keying: Prevents incorrect module replacement.

Electrical Characteristics

• Resistive inputs with IEC 1 characteristics.
• On‑state input current ≈10 mA – drives switching devices reliably.
• Off‑state leakage ≤2 mA – does not falsely trigger.
• No DIP switches or jumpers – configuration via software.

Configuration & Software

• Configure using MS‑DOS or Windows programming software.
• Input/output references are user‑definable.
• No hardware jumpers – all settings in software.
• Compatible with GE Fanuc Series 90‑70 programming tools.

Compatible Devices

• Limit switches, pushbuttons, selector switches.
• 2‑wire and 3‑wire electronic proximity switches.
• AC powered sensors and photo‑electric devices.

Oiltech Controls Insight

• “The IC697MDL254 is a workhorse for 48 V AC inputs – we see it in 70% of 90‑70 racks.”
• “Group isolation makes it perfect for multi‑phase AC monitoring without external relays.”
• “We test every unit for leakage current and on‑state voltage before shipping.”

Typical Applications

• GE Series 90‑70 PLC systems in manufacturing and process plants.
• AC input signal acquisition from field devices.
• Retrofit of legacy 48 V AC control panels.
• Motor control centers and conveyor systems.

Frequently Asked Questions (FAQ)

• Can I mix 48 V AC and DC inputs on the same module?
  No – this module is AC only; use IC697MDL240 for DC inputs.
• What happens if I connect 120 V AC?
  Permanent damage – rated for 48 V AC only. Check your supply before wiring.
• How do I assign input references?
  Use the configuration software – no hardware settings required.
• Are the 4 groups isolated from each other?
  Yes – each group of 8 points has separate common/phase connection.
• What is the maximum off‑state leakage allowed?
  2 mA – higher leakage may turn the input on falsely.

Experience‑based Q&A & Selection Guide

• Which sensors work best with this module?
  2‑wire AC proximity switches with low leakage – we recommend P+F or Turck models.
• How do I check if my existing module is faulty?
  Measure input voltage at the terminal – if LED is off but voltage present, module may need replacement.
• Can I replace IC697MDL254 with IC697MDL240?
  No – the MDL240 is DC only; voltage mismatch will cause damage.
• What is the typical failure mode?
  Input channels fail open – we test all 32 points before dispatch.
• Why choose Oiltech Controls for this part?
  We pre‑test, offer 12‑month warranty, and stock genuine GE Fanuc spares.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spare parts.
• Global shipping support – fast and trackable.
• Tested surplus / refurbished options available.
• 12‑month warranty on every module.
• Technical verification before shipment.
• Expert support for obsolete control systems.

Contact Information
Sales inquiries: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923

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