Honeywell MC-PDOY22

Product Name: Digital Output Module / Processor
Product Introduction: Part of Honeywell TPS Process Manager I/O series, designed to convert controller logic into discrete digital output signals for field devices in DCS architectures like Experion PKS.

Category: Honeywell

Description

Technical Specifications:
- Output Channels: 32 channels (some references note 22, but 32 is standard for MU/MC-PDOY22).
- Output Type: Open-collector (current sinking) NPN transistors or Form C dry contact depending on FTA.
- Load Voltage: 15 – 30 VDC (nominal 24 VDC).
- Current Rating: Max 0.5 A per point, 5 A max per 32 points.
- Isolation: Galvanic isolation via photo coupler (30 Vac, ±42.4 Vdc max).
- On/Off Time: < 200 ms (relay FTA < 10 ms).
Functional Features: Supports hot-swappable replacement in redundant configurations, built-in diagnostics for open circuit/short circuit/overcurrent, LED channel status indication, surge suppression (ANSI/IEEE C37.90.1).
Application Scenarios: Driving solenoid valves, motor starters, alarm annunciators, and indicator lights in oil & gas, chemical processing, and power plants.
Performance Parameters: Off-state leakage < 0.5 µA, On-state voltage drop < 0.5 V @ 0.5A, operating temperature -40°C to +70°C.
Material/Structure: PCB with conformal coating, stainless steel or reinforced polymer housing, compression or screw terminals, DIN rail compatible.
Working Principle: Receives digital logic from controller via backplane bus, switches output transistors/relays to sink current to field load, isolates field voltage via optocouplers.
Installation Requirements: Mount on standard DIN rail or panel; ensure 24 VDC supply within tolerance; connect FTA (Field Termination Assembly) via ribbon or bridge cable.
Usage Notes: Do not exceed 30 VDC load rating; ensure fusing matches load (e.g., 1.6 A per 2 points); verify grounding to prevent noise-induced false triggering; replace online only in redundant pairs to maintain process continuity.

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