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1. INTRODUCTION
This User Manual provides general installation and use information regarding the Marelli Motori regulator whose code is
reported on the cover and inside the document, mounted on Marelli Motori generator types indicated in Chap. 3.
Before starting the generator and performing any type of regulation operation, carefully and completely read all of the
instructions contained in this manual.
IMPORTANT NOTE: This User Manual not intended to cover all of the possible application or installation variations nor to
provide data or information to support every possible contingency. The connection diagrams provided with the generator, its
Use and Maintenance Manual and any additional information provided by qualified Marelli Motori technical personnel
supplements and completes this manual.
In particular, the diagrams reported in this document provide only an example of the connection and operation mode for the
device; these do not cover all possible application cases and are not a substitute for the connection diagrams normally provided
with the generator.
If further application information becomes necessary, please contact Marelli Service, whose contact data is shown below.
Marelli Motori
Via Sabbionara 1
36071 Arzignano (VI)
Italy
T +39 0444 479 711
F +39 0444 479 888
[email protected]
[email protected]
2. SAFETY PRECAUTIONS
ATTENTION: DO NOT TOUCH THE CONTROL MODULE WHEN IT IS UNDER POWER.
When the control module is under power (or the machine is in rotation) the upper part of the device
(connection side) and all parts electrically connected to it contain lethal voltage.
There could be also
components with high temperatures that are dangerous in the event of direct contact during normal operation
on the component module.
Any operation on the cabling and/or mechanical installation of the regulator must be performed by
qualified and informed personnel, with the generator halted and making sure that a sufficient amount
of time has passed for the regulator components to have cooled down to a temperature that is not
dangerous to personal safety.
Each calibration operation must be performed with the machine running without a load by qualified
and informed personnel using the proper tools to guarantee electrical safety (for example, insulated
screwdrivers) and wearing all of the necessary personal safety devices (especially safety glasses and
protective gloves).
Marelli Motori denies any responsibility for damage to the regulator, system or people, for loss of profit or money, or for system
shutdowns caused by the failure to observe the safety and/or installation/use instructions reported in this User Manual.
3. APPLICATION
The voltage regulator type M40FA644A - MARK X is suitable for Synchronous Generators of MARELLI MOTORI make, MJB
series, for PMG (Permanent Magnet Generators) applications. The regulator is proper both for single and 3-phase generators.
NOTE: For information on compatibility with different sizes or series of synchronous generators other than those indicated
above, contact Marelli Service.
