System Description; Components Description And Functions - Stiga e-PARK 220 Workshop Manual

WORKSHOP MANUAL
e-PARK 220

9.2.1 Components description and functions

The block diagram shows the interaction of the main devices that make up the machine control
system, the management of the power circuit, the CAN BUS communication system and electrical
circuits that ensure total safety in the control of the electric motors.
The management of the system is controlled by 5 control units that interact with each other with a
continuous exchange of incoming and/or outgoing information.
• BMS (Battery Management System). Control unit that monitors the temperature, current and
voltage of the cells that make up the battery pack, during the charging and draining phases of
the battery pack.
In the event of anomalies, both during charging and draining, the BMS completely isolates the
power line of the battery pack, opening the main contactor KS.
• CHARGER The battery charger commence working only when the machine is being charged.
It is a device that transforms the voltage of the 230V AC home network into direct current, and
supplies the battery pack with the current/voltage profile required by the BMS.
If there is no communication with the BMS, or overheating, the charger interrupts the power sup-
ply.
• AC-0 TRACTION CONTROLLER The traction motor controller is a control unit that controls the
motor and the traction brake, depending on the input signals it receives: status of the switches ,
9 - ELECTRONIC MANAGEMENT - BATTERY

9.2 SYSTEM DESCRIPTION

CHAPTER EDITION PAGE
2018 63 /
84