8.4
Zero Amps
Over time and with temperature fluctuations, it is possible for the zero
point to drift, such that even when no current is flowing through the
shunt a small number (like 0.03A) is displayed. This can be reset to
zero by holding down the button after the 'zero amps' screen until the
_OK flashes on the bottom right. Note though that the wire shunts
used in motor controllers are prone to generating small thermoelectric
voltages for a short while after being used. This produces the
appearance of a lingering current that slowly decays back to zero, and
it should not be confused for a current offset in the Cycle Analyst.
8.5
Volts Sense
Changing this value will change the scaling of the battery voltage
displayed on the screen. This value can be modified either for
calibration or to display a voltage that is proportionally higher or lower
than the voltage powering the Cycle Analyst. The calibrated value is
close to 31.0, while 350V modified boards will be closer to 70 V/V.
8.6
Set # Poles
For Direct Plug-in units, this should be set to the number of hall effect
transitions per rotation of the wheel. Crystalyte 400 series hubs have
8, the 5300 series hubs have 12, and the Nine Continent 205 series
motors have 23 poles. For units that use a speedometer sensor and
spoke magnet, #poles should be set to 1, unless you have multiple
magnets on the wheel. The #poles setting can range from 1-99.
8.7
PSGain
Default = 0.08
This is the Proportional Speed Gain for the over-ride output. It can
decrease the response time and reduce overshooting the set point
speed, but at the risk of causing rapid vibrations if it is too high. The
range can vary from 0 to 0.99 V/kph or V/mph.
8.8
IntSGain
Default = 200
This value determines how rapidly the over-ride output will ramp down
when the speed of the vehicle exceeds the limit speed. Increasing this
value will speed up the response time for the speed control, but at the
risk of causing oscillations. Too low of a value will allow considerable
overshoot of the speed limit. The gain value can range from 0 to 999,
and the scaling is currently arbitrary.
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