Hired-Hand Farm Hand Series: Data Shuttle Launch Pad - Manual (Page 14)

Part No. 4801-0165 Rev 7-02 Data Shuttle Launch Pad 12
Motor Curve Options
Sensors Options
Timer Options
Mode Options
11.3 VARIABLE SPEED Window
This window applies to: Î Swine Finisher 1 Variable Speed Stage
Î Swine Finisher 2 Variable Speed Stage
Î Stage Master 8 Variable Speed
Î Stage Master 12 Variable Speed
This window adjusts the Variable Speed Fan Mode, Full
On, and Minimum On temperatures, plus the Timer
Minimum Speed and Minimum Time Percent, plus the
selection of the Sensors and the type of Motor Curve.
While the user is adjusting the data, the speed versus
temperature data is automatically plotted in the graph.
The following
parameters are set using
this window:
Mode - See Section 11.2 .
Full On -The temperature
corresponding to the full
on (100%) speed.
Minimum On - The
temperature at which the
fan runs at its minimum
speed.
Minimum Speed - The
speed at which the fan
runs at the
Minimun
On
temperature.
Minimum
Timer
Percent - If temperature is below
the Minimum on-point, the percent of the system timer that the fan will run at it’s
minimum speed.
Timer and Sensors options - See Section 11.2 .
Motor Curve
Conditions
1 For use with Hired Hand’s line of Funnel Flow Fans that are 24” or less. Also,
line voltage must be Single Phase.
2 For operation of 36” fans. The power distributed at each percentage is somewhat
greater than that of curve 0. Therefore, the speed will be a little greater than that
of curve 0.
3 For 3-Phase systems. Its purpose is to shift the voltage curve to give a much
higher power from the varied phase. Conditions that would warrant the use of
this curve is a variable speed fan that varies a great deal from 100% speed to 95%
speed.
4 For 3-Phase systems. Its purpose is to shift the voltage curve to give much less
power from the varied phase. Conditions that would warrant the use of this curve
is a variable speed fan that varies very little from 100% speed to 5% speed.