WARNING: It is not possible to configure electro brake wire off on slave nodes, where the brake
is released via a CANopen PDO.
To prevent vehicle roll away on inclines, the electro-mechanical brake normally does not release until
the traction motor(s) are producing torque. This feature can be disabled using 2903
h
,3.
External LED
This mirrors the operation of the controller’s on board diagnostic LED. The external LED can be
mapped to an analogue output to drive a lamp on a vehicle dashboard.
Alarm buzzer
The alarm buzzer can be mapped to an analogue output.
Configure the alarm buzzer output, if required, to be activated by one or more of these conditions at
2840
h
:
• forward motion or forward direction selected
• reverse motion or reverse direction selected
• faults other than information faults
• controlled roll-off
• BDI low.
A different cadence for each of the above conditions can be configured.
Brake Lights
A brake light output object is available and can be mapped to an analogue output. The brake lights will
illuminate whenever the footbrake is pressed (providing either an analogue or digital footbrake input is
available) or the system is in direction change braking.
Horn
Ensure a digital input switch is mapped to the horn switch, and an analogue output is mapped to the
horn output.
Vehicle Speed Calculation
The controller can be configured to calculate vehicle speed from motor speed by setting a configurable
ratio between these values in object 2915
h
.Calculated vehicle speed can then be transmitted to the
CANbus for use with compatible displays, or used to keep a log of total distance travelled by the vehicle.
The convention is to calculate vehicle speed as a signed number in 12.4 format in kph. This is required
for compatibility with ClearView displays and the odometer. In case a custom display is used whose units
are different, a user speed calculation is also provided whose units are independent from all other
features.
Two sets of ratios are provided for calculation of a vehicle and user speeds, located in object 0x2915.
While vehicle speed is a signed value, the option to have unsigned user speeds is also provided (an
absolute value will be calculated).
The ratio between motor speed and vehicle speed will be dependent on vehicle drive train parameters
such as gearbox ratio and wheel size. However, the ratio should be calculated such than when it is
multiplied by motor speed (which is in rpm), the result is vehicle speed in kph 12.4 format. To do this,
the following equation can be used:
To Next Page
Loading...
