Zero Motorcycles MX 2012, Owner'S Manual

Page: 120 / 142

6-11
The Charger Disable Interlock
When the charger is attached and plugged in to AC
power, the BMS communicates with the charger. The
BMS can send a signal to the charger requesting that
charging terminate immediately. When the charger is
disabled, the indicator lights on the charger will show
that charging has stopped.
There are two conditions that will cause the BMS to
disable charging. One of these conditions is also
reported by a self-test result beep pattern; the other is
not.
Too Hot
If the BMS detects high internal power pack
temperatures, it will both disable the throttle and
prevent charging. This condition is also reported by a
flash code pattern after BMS self-test when the
motorcycle is turned ON. See Understanding BMS
Flash Code Patterns on page 6-4 for a description of
the Too Hot error beep and the solutions.
Power Pack Full (High Pack Voltage)
If the BMS detects that the power pack is already full,
it will disable further charging to prevent damage to
the power pack.
This is not an error-condition; it is the result of a
successful charging cycle. There is no self-test error
beep which reports this condition.
During an ordinary charging cycle, when the cells
are balanced, the charger (not the BMS) will sense
that the power pack is full and terminate the charging
cycle with a “green light.” The BMS does have a
redundant back-up mechanism to prevent
overcharging of the power pack. If the charger fails
to terminate a charging cycle when the power
pack is full, the BMS will terminate charging itself to
prevent damage.
Instrument Panel
System Warning Indicator
If a fault has been detected, count the number of
times the red LED flashes. See the tables on pages
6-12 and 6-13 for possible causes and solutions to
the issue.