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CMP375 Series
CMP375 Series – Rev. 1.1, Issue 11/07 Page 5 of 12
User's Manual
OPERATION MODE
The charger is controlled by an external Battery Management System
(BMS) or Vehicle Management Unit (VMU) over CAN V2.0B (see
MT3594 and specific CAN manual ).
CAN Messages
A fully customized V2.0B interface (STD/EXT frame, messages, baud
rate, SAE J1939) is available on request.
Overview – std CAN messages:
Messages contents
Control
Iout & Vout reference value, control bits
Status
Status of charger
Values
Actual Iout & Vout values of the charger
Temperatures
Internal temperature
Errors
Errors & Warning
See MT3594 for details
SAE J1772
When set, allows the charger to fully couple with SAE J1772 Power
Station (EVSE SAE J1772 compliant, level 1 and 2). The charger
automatically turn on and off when SAE J1772 signal is present and
valid. A charger SLEEP mode (Imax = 15 mA drawn from KL30) is
activated when the Proximity signal is lost for more that 1 minute. The
unit wakes up when Proximity or Ignition Run is present.
POWER LIMITER
The charger, in order to ensure safe operation, controls: output
current, output voltage, power and temperatures. The charging output
power is limited or stopped if some critical parameters limits is
reached.
In particular, in order to prevent the charger overheating, the output
current is reduced by the heatsink's (+60°C...+85°C), magnetic and
internal temperatures according to the chart.
Higher heatsink's temperature produce the unit to switch off.
EDN GROUP S.r.l.
Via Mazzini, 10/12 – 20032 – CORMANO (MI) ITALY – TEL. +39 02 66305120 FAX +39 02 61540938
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