Original Mebay DC42DR-ABF MK3 AMF ATS Genset Controller ABF Remote Monitor IP54 LCDDiesel Generator Controller Module

Wide Application Range

Commercial building backup power genset cabinet, factory critical load standby power distribution box, land three-phase auxiliary power unit, large silent diesel generator control panel, grid-connected off-grid industrial power station, hospital/data center emergency power supply, generator factory complete cabinet assembly, generator retrofit maintenance project, direct replacement for imported DSE4520 HGM420 ATS control panels, old genset cabinet renovation special model.

Product Specifications

• Brand: Mebay (Yokden)
• Model: DC42DR-ABF MK3
• Core Function: MK3 32-bit single-core AMF ATS genset controller, exclusive ABF anti-backfeed reverse power protection, non-isolated RS485 Modbus remote communication + USB debug, full 3-phase power & mechanical engine monitoring (No CAN J1939, mechanical pump engine only)
• Working Power Supply: DC8V ~ 36V universal 12V/24V genset battery wide voltage
• Sampling Standard: 1P2W/2P3W/3P4W auto-adaptive mains & generator AC sampling, 5A CT current transformer matching
• Communication Interfaces: Rear non-isolated RS485 A/B Modbus RTU port + onboard USB debug port (No CAN J1939 ECU bus)
• Display: 3.0-inch 128×64 multi-language high-resolution LCD screen
• Panel Cutout Size: 160 × 120 mm, overall dimension 189 × 134 × 50 mm
• Front Panel Protection Grade: IP54 industrial dustproof & waterproof with thin silicone sealing gasket
• Operating Temperature: -25℃ ~ +65℃
• Warranty: 12 months genuine factory warranty
• Certifications: CE, ISO9001, EMC EN55032, RoHS

Common Equipment Failures Solved

• LCD no screen after power on: Check DC battery positive/negative wiring looseness, confirm DC8-36V normal voltage range
• ATS fails auto start when mains lost: Verify AUTO mode activated, re-calibrate mains voltage detection threshold
• Reverse power fault alarm frequently triggered: Adjust ABF anti-backfeed threshold parameter via USB software or RS485 remote setting
• PC cannot connect via USB cable: Confirm USB driver installation, check cable wiring integrity
• Remote DT1000 unstable data transmission: Non-isolated RS485 susceptible to strong electromagnetic interference, upgrade to MK4 if needed
• Cannot read EFI engine ECU fault codes: DC42DR-ABF MK3 has no CAN bus, upgrade to DC42CR MK3 for electronic injection engines
• No demand for anti-reverse power protection: Replace with standard DC42DR MK3 model without ABF function
• Need independent power kWh display: Match GV59R 3-phase multi-function power meter for separate energy statistics
• Marine/high humidity cabinet frequent water mist: Replace with DC42DR-ABF MK4 IP65 waterproof version