Product Introduction

Model Interpretation

• 57401‑2: Base part number; 2 = hardware revision 2

• 0‑57401‑2: Full AutoMax part number

• 57401: Family code = 115 V AC/DC output module

• ‑2: Revision 2 (component/layout updates, ECO fixes, drop‑in compatible with earlier revisions)

Technical Parameters

• Output type: 115 VAC or 115 VDC (solid‑state, non‑isolated per channel)

• Channels: 16 outputs (0–15)

• Load voltage: 70–132 VAC/VDC

• Load current: 0.5 A per channel, 8 A total max

• On‑state resistance: <15 Ω

• Off‑state leakage: <2 mA

• Response time: <10 ms

• Backplane power: +5 VDC, 500 mA typical

• Isolation: 1500 V AC (field to backplane)

• Temperature: 0 °C to +60 °C

• Humidity: 5%–95% non‑condensing

• Weight: ~0.91 kg (2.0 lbs)

• Manual: J‑3626

Interface & Indicators

• Field side: 16 screw terminals (0–15) for 115 V loads

• Backplane: Edge connector for power/data

• LEDs: 16 channel status; Power/Fault LEDs on front

Core Functions

• Switches 115 VAC/VDC discrete loads (relays, contactors, solenoids, indicators)

• Converts 5 V logic from CPU to 115 V field power

• Overcurrent protection per channel (auto‑reset)

• Status reporting to processor

• Hot‑swap capable (system‑dependent)

Application Scenarios

• Legacy AutoMax DCS/PLC output replacement in manufacturing, power, process

• Factories with 115 VAC/VDC actuators and devices

• Paper, steel, chemical, packaging lines

• Retrofit/maintenance where full system replacement is uneconomical

57401‑2 vs 57400‑B

• 57400‑B: 16‑pt input (115 V AC/DC)

• 57401‑2: 16‑pt output (115 V AC/DC)

• Both: Same form factor, backplane, rack compatibility

Operation & Maintenance

• Static‑sensitive: Use ESD protection

• Power off before insertion/removal/wiring

• Installation: Seat firmly in rack, secure screws

• Wiring: 115 V loads to terminals 0–15; common to neutral/ground

• Maintenance: Keep clean/dry; inspect terminals quarterly

• Troubleshooting: Check LEDs, load voltage, backplane +5 V; replace if faulty