Hired-Hand Farm Hand Series: Stage Master - Manual (Page 11)

Part No. 4801-0151 Rev 4-06 Farm Hand Stage Master 11 of 40
P20 -- Cycle Time
The controller looks at all parameters and decides whether or not to move the
curtains occasionally. This parameter determines how often this occurs. Valid
settings are 1 to 10 minutes.
P21 -- Run Time
When the controller determines that curtains need to run open or close, this
setting determines how long they run. Valid settings are 1 to 240 seconds.
P22 -- Initial Run Time
When the controller determines that the curtains should run open and senses that
they are closed, it uses this parameter for the ‘first’ run. This setting is used to
allow the curtains to open enough on the first run to guarantee adequate
ventilation. Valid settings are 1 to 240 seconds.
P23 -- Degrees above target for Unit 1
Generally a grower would like to give his variable speed and/or first stage fans
an opportunity to ventilate the building before starting curtains open. Thus,
when the curtains do come down, they will most likely stay down for a fair
period of time. This setting allows the user to do that. Valid settings are: 0 - 25.
P24 – Degrees above target for Unit 2
Occasionally, a grower may want one curtain sidewall to drop before the other
to try to avoid large temperature swings. This setting allows for this to happen.
Note: If you would like both curtain units to always react together, you
must set P23 = P24.
P25 – Tunnel OnPoint
This is the sensor 4 temperature at which the controller will enter tunnel mode.
Only applicable when tunneling on outside temperature.
P26 -- Tunnel OffPoint
This is the sensor 4 temperature at which the controller will exit tunnel mode.
Only applicable when tunneling on outside temperature.
P27 -- Close Override (Degrees Below Target)
This setting provides the grower a temperature at which to override the curtains
closed. The setting represents degrees below target at which time the curtains
will begin closing regardless of the cycle. The setting allows the user to
anticipate quick temperature drops to help maintain a stable inside temperature.
Valid settings are 1-25.
6.4 Cool Timer Settings (ON/OFF Stages Only)
The following two settings allow the user to set the Runtime range for their cool timer stages.
These settings apply to the cool timers on the On/Off stages only.
P70 = Cool Timer Maximum Percentage
This sets the maximum Runtime percentage that a cool timer stage can operate.
P71 = Cool Timer Minimum Percentage
This sets the minimum Runtime percentage that a cool timer stage can operate.
6.5 PC Compatible Network Parameters
This option requires Hired-Hand’s Farm Manager Software. The controller has 3 functions which
are used to set it up on the Hired-Hand PC compatible inter-controller network (HH.Net). These
are:
P40 – HH.Net Address
HH.Net allows you to connect up to 32 controllers on a single communications
port of your personal computer (PC). In order for the computer to recognize the
communications from the controllers, each controller must have a unique address.
For example: If you have two Stage Master, and two Power Vents you would