GE Fanuc|IC695ALG508|8-Channel Isolated RTD Input Module

GE Fanuc IC695ALG508 8-Channel Isolated RTD Input Module

Description
GE Fanuc IC695ALG508 is an 8-channel isolated RTD input module for RX3i PLC systems, supporting 2-, 3-, and 4-wire RTD sensors with per-channel configuration.

Features
Supports multiple RTD types including Platinum, Nickel, Copper, and Nickel-Iron.
Provides channel-to-channel and field-to-backplane isolation.
Software-configurable filters and measurement ranges.
Full diagnostics: open wire, over/under range, rate-of-change, and high/low alarms.
Hot-swap capable; requires RX3i CPU firmware 5.5 or later.

Technical Specifications

• Number of Channels: 8 (differential, isolated)
• RTD Types Supported:
  • Platinum 385/391.6 (50–1000 Ω)
  • Nickel 618/672 (100–1000 Ω)
  • Copper 426 (10–100 Ω)
  • Nickel-Iron 518 (604 Ω)
• Resistance Input Ranges: 0–260, 0–525, 0–1050, 0–2100, 0–3150, 0–4200 Ω
• Excitation Current: 0.238 mA to 1.654 mA (range-dependent)
• Max Lead Resistance: 50 Ω total (25 Ω per wire)
• Temperature Accuracy (at +25°C):
  • 100 Ω Platinum 385: ±0.7°C
  • 100 Ω Platinum 391.6: ±0.6°C
  • Nickel 672: ±0.3°C
• Resolution: 32-bit floating point or 16-bit integer
• Update Times: 15 ms to 130 ms (filter-dependent)
• Filter Frequencies: 2.3 Hz, 4 Hz, 4.7 Hz, 24 Hz, 28 Hz
• Common Mode Rejection: Up to 100 dB (50/60 Hz)
• Normal Mode Rejection: Up to 80 dB (50/60 Hz)
• Isolation:
  • 250 VAC continuous, 1500 VAC for 1 minute
  • 2550 VDC for 1 second
• Backplane Power: 400 mA @ 3.3 VDC, 200 mA @ 5 VDC
• Power Dissipation: 2.5 W max