Sevcon Dragon8 User Manual

10
Safety and protective functions
General
Electric vehicles can be dangerous. All testing, fault-finding and adjustment should be carried out
by competent personnel. The vehicle manufacturer's manual should be consulted before any
operation is attempted.
The battery or generator must be disconnected before replacing the controller. After the battery
has been disconnected, wait for the internal capacitors to discharge to less than 60V before
handling the controller or working near exposed terminals.
Hazardous voltages may remain on the controller internally and on exposed power terminals after
the main battery power connections and keyswitch power supplies have been removed if the
controller is connected to a rotating permanent magnet motor.
Controller discharge profile on page 39 for controller discharge times.
Never connect the controller to a battery with vent caps removed or a generator with an open
fuel tank as an arc may occur due to the controller internal capacitance when first connected.
Do not attempt to open the controller as there are no serviceable components. Opening the controller
will invalidate the warranty.
Use cables of the appropriate rating and fuse them according to the applicable national vehicle and
electrical codes.
Where appropriate, use of a suitable line contactor should be considered.
Electric vehicles are subject to national and international standards of construction and operation which
must be observed. It is the responsibility of the vehicle manufacturer to identify the correct standards
and ensure that their vehicle meets these standards. As a major electrical control component the role of
the Dragon8 motor controller should be carefully considered and relevant safety precautions taken. The
Dragon8 has several features which can be configured to help the system integrator to meet vehicle
safety standards. Sevcon accepts no responsibility for incorrect application of their products.
On-Highway Vehicles
General
This applies to all on-highway vehicles, such as cars, motorcycles, buses and trucks
The installer must ensure an appropriate controller configuration is set to ensure that the vehicle
remains in a safe condition, even in the event of a fault.

Sevcon Dragon8 Specifications

General

Brand	Sevcon
Model	Dragon8
Category	Controller
Language	English