Rhino to RHINO2 Conversion Guide
Page 19
Drive
input or an
Actuator Wig-Wag
input depending on the controller being replaced. Do
not select "Actuator Control" as this is not the equivalent function. See
R
HINO
2 Installation
Manual
4.4.9
.
Status LED
If a Status LED is wired in series with the key switch, then program the
R
HINO
2
Key Switch
Status LED
(see
R
HINO
2 Installation Manual
4.4.10.4
) parameter to “
Yes
”. Note that wiring a
resistor in series with the status LED on the Key Switch input can cause the
R
HINO
2
to switch
off under low battery conditions and therefore should not be done. The
R
HINO
2
will limit the
current through the Status LED itself making an extra resistor unnecessary.
Speed Settings
The Rhino’s
Forward Speed
,
Reverse Speed
and
Reduce Speed
parameters range from 1 to 10.
These translate directly into percentages from 10% to 100% used by the
R
HINO
2
. See next section
regarding speed reduction.
The Rhino’s
Maximum Motor Speed
parameter is a percentage. This should be multiplied by 24 volts
to give the correct value for the
R
HINO
2
's equivalent parameter
Maximum Motor Voltage
(see
R
HINO
2 Installation Manual
4.4.5.13
).
Speed Reduction
The Rhino has a
Reduce Speed
input, also known as the Turn input, which is pin 6 of its Logic
connector. When asserted, this causes the speed demand to be limited to the value of
Reduce
Speed
unless the
Forward Speed
or
Reverse Speed
parameter (depending on the direction of travel)
already has a lower value. Some Rhino variants also support an analogue speed-limit potentiometer
on this pin - see above.
The
R
HINO
2
has several ways of achieving a similar function. One way is to program one of the multi-
function inputs to be a
Slow
(see
R
HINO
2 Installation Manual
4.4.9
) input, and to program the value
of the corresponding "Slows to" parameter to the Rhino's Reduce Speed setting (after multiplying by
10 to convert it into a percentage). Another way is to program one of the multi-function inputs to
be a "
Profile 2
" input and to program the Profile 2 Forward Speed (see
R
HINO
2 Installation Manual
4.4.9
) parameter to match the Rhino's Reduce Speed setting. If this method is used, then the Profile
2 Forward Acceleration and Reverse Acceleration settings may need to be reduced to give a similar
feel, but this method does give more flexibility. In either case, we recommend using pin 4 of the
R
HINO
2
's tiller head connector for this function.
Acceleration and Deceleration Settings
The Rhino Acceleration and Deceleration settings range from 1 to 10, displayed as 10% to 100% on
the Wizard. The
R
HINO
2
Acceleration and Deceleration settings (see
R
HINO
2
4.4.4
), including
Slam
Brake Deceleration
and
Emergency Deceleration
, have finer resolution and are displayed as 0% to
100%. However it is implemented as a non-linear (exponential) function, so 0% does not mean zero
deceleration, but gives a 10 second nominal stopping time. In addition, the
R
HINO
2
Acceleration and
Deceleration range has been widened to suit a range of applications, and so a 100% rate gives a
nominal stopping time of just 0.4 seconds. For high speed scooters (14km/h or more), stopping
times around 2.0 to 2.5 seconds are required, requiring deceleration rates around 50% - 45%. For
low speed scooters (6km/h or less), stopping times around 1.0-1.2 seconds are required, requiring