LOFA MC536 Operation and Troubleshooting
Revision - A - 22-May-2006
1
Introduction
This document provides general information on LOFA Industries MC536 control systems operation and
troubleshooting. MC536 control systems are a very flexible platform for diesel engine control, monitoring,
and protection, featuring LOFA’s powerful First Fault Diagnostics (FFD). After pinpointing the initial failure,
FFD stores it in memory and alerts the end user via a single bright LED. FFD monitors battery charge, low oil
pressure, high temperature, overspeed and up to two additional contact closure inputs. The field
configurable microprocessor-based solid-state design uses high-power semiconductors instead of outdated
electromechanical relays to ensure reliable high-current switching.
The MC536 is field configurable with an inexpensive programmer. Some of the MC536 configurable
features include:
•
Automatic preheat duration
•
Failure indication with shutdown or indication only
•
Starter motor protection
•
Over-speed shutdown
•
Normally open or normally closed shutdown switches
The standard system includes a 12 inch wiring harness terminating into a sealed weatherproof plug. This
durable connection performs well in harsh environments and provides efficient installation of custom plug-
and-play engine harnesses as well as standard harness extensions.
Warning
When replacement parts are required, LOFA Industries recommends using replacement parts
supplied by LOFA or parts with equivalent specifications.
Failure to heed this warning can lead to premature failure,
product damage, personal injury or death.
