Rev Z
Page 38
11/28/2011
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3.
Zero velocity: set to yes for Zero velocity spinner
4.
Minimum Trim: see below;
5.
Maximum Trim: see below;
6.
Pulses Per Revolution: enter the rated pulses per revolution of the sensor on the
Zero velocity spinner;
7.
Overdrive %: leave at default value.
8.
Impeller Diameter (inches): enter size of impeller in inches.
9.
Hotkey mode button: allows single key switching between auto/mph and manual
control of zero velocity spinner. Default is no.
Hotkey Mode
: allows the operator to switch from ground speed oriented operation of the ZV
spinner to manual mode (manual control of output based on % of total output) with a single
“hotkey.”
Enable the hotkey in the set up of the spinner (above):
Toggle between MPH (auto) and Manual (%) with “pass” enabled, with one click of spinner.
While “pass” is off, toggle between functions by holding spinner (-) till it reaches 0 and switches
to Manual mode. Hold spinner up to raise manual output, down to lower, 0 plus one click to
return to MPH mode.
Select Manual or Automatic Trim
a) Press the spinner control until the minimum trim setting is selected.
b) Press
“pass”
to enter trim calibration.
c) Choose either automatic (requires sensor) or manual (with or without sensor) calibration.
The unit can automatically calibrate the trim settings using the sensor as feedback.
Manual Zero velocity Trimming – Recommended
If you selected manual calibration, you must manually raise the hydraulic level using the spinner
button, and observe the pulse count returning from the sensor or visually observe the Zero
velocity motion. The auger button must also be raised until the auger is moving throughout the
trimming step.
1)
Raise the hydraulics (Spinner button) until the zero velocity spinner is barely moving.
2)
Press pass to accept this speed as the minimum trim level.
3)
Increase the hydraulic level until maximum zero velocity speed is achieved.
4)
Press “pass” again to accept the maximum trim levels.
5)
Once the maximum trim level is accepted, the user is asked to “accept calibration”.
Select “Y” using the spinner control, and then press pass.
6)
The zero velocity trim is now set, select blast to save and return to the main menu.
Automatic Zero velocity Trimming – Closed loop only
If you selected automatic trim calibration, the unit automatically selects the trim levels
using the sensor as feedback.
1)
Step through the on screen instructions using the pass button to begin trim calibration.
2)
Once initiating auto trimming, you have 10 seconds to raise the engine RPM.
