DVS 400 Fast Charging System Operation and Maintenance Manual
09190-W-03-01
Page 13 of 27
Webasto Charging Systems, Inc.
5.2
Charging
(Note: The numbers shown as part of the screen display in this section of the manual are for illustration purposes
only. The actual numerical combination of voltage, current, and temperature will vary with the type of battery pack
being charged.)
Step 1: Connect battery to charger
To start charging, simply connect the battery to either charge port of the charger. The charger will establish
communication with the BMID, calculate the current state of charge, identify the correct charging profile, and
start charging. At each step, the charger will display the corresponding Status screen (see Figure 5.2). During
“Preparing for Charge”, the DVS 400 counts down while preparing to charge. Charging preparation includes
measuring the Open Circuit Voltage (OCV) of the battery pack and calculating the State of Charge (SOC) to
determine what the initial current should be to charge the pack properly. Once the charge starts, and the
“Charging” screen is displayed, the current is ramped up from zero to the target initial current while the charger
monitors the pack voltage.
Figure 5.2. Connecting Status Screens
Note that the screen examples shown above have a left-facing arrow at the left of line 1. This indicates that the
display applies to charge port A. A right-facing arrow at the right of line 1 indicates that the display applies to
charge port B. The display screen will periodically update the charging data as the charge progresses. In
addition, the front panel has several status LEDs that indicate the current status of the vehicle under charge and
whether it is scheduled for an equalization charge (see Figure 5.3 and Table 5.1).
< C h a r g e r R e a d y
C o n n e c t V e h i c l e
< V e h i c l e C o n n e c t e d
G e t t i n g C o n f i g I n f o
< S t a r t i n g F a s t C h a r g e
P l e a s e W a i t X X S e c
< C h a r g i n g 5 3 %
5 0 . 1 V 5 0 0 A 4 0 C
Vehicle Connected
Communication Established