Poultry House Control
68
Digital Sensors
The digital sensor card has 8 inputs on
its two rows of connectors. The digital inputs
accept a dry contact input.
The digital inputs source +5 volts
through a 1K ohm resistor on the left terminal to
return through the right terminal of the pair. The
odd channels are on the bottom connector, and
the even on the upper connector. To monitor feed
quantity delivered and also feeder overtime, you
can parallel two inputs to the same sensor. Be
sure to observe the polarity (positive left,
negative right). The available uses are Feed
Count, Water Meter, Feeder Overtime, and
auxiliary alarm.
You can logically couple the auxiliary
digital alarm functions to related relays in
Management | Alarm Setting. If you do, the
digital input must follow the corresponding relay
output or an alarm results after the usual alarm
delay.
Curtain Setup
Enter the total opening and closing
times of your natural curtains, tunnel curtain and
side inlets in seconds. The Platinum Plus needs
this information to keep track of position, and to
calculate its first guesses for automatic static
pressure advance.
Help | Set Parameters
(standard mode only):
1. Stage step percentage
: in natural
ventilation, the curtains (including the tunnel
curtain) open and close in even steps of this
size. The size is in percentage of the full
time to open or close the curtain.
2. Number of stages for calibration
: After
moving the number of times specified in
stages for calibration, the curtains go to the
nearest limit (fully open or fully closed) one
at a time in order to calibrate their position
counters. Whenever any curtain reaches one
of the limits, its calibration counter
automatically resets.
3. Delay between stages
for natural curtains.
When waiting at least the length of time
specified in the delay between stages before
moving again.
4. Stop fans curtain moving (total %)
when
the total curtain opening is less than a
specified amount. For example, if you have
two conventional curtains and one tunnel
curtain, with all of them at 50% open, then
the total opening is 150%.
5. Hold Relay at Edges
chooses between
holding open and close relays active at the
0% and 100% open points, or turning them
off after a 50% overrun to ensure reaching
the limit switch. If you set this to yes, then
each curtain and the inlet close relays will
stay on when its position reaches 0%, and
the open relays will stay on when the
position reaches 100%. However, if static
pressure is within limits, and the last
movement was due to static pressure
adjustment, then the relays may be off if
pressure is correctly in its band.
Scale
You can assign platform scales or
hanging scales to weigh birds, or scales for the
Channel 1 uses the two lower left screws.
The left terminal is +5 Volts through 1000
ohms, the right 0 V. Odd channels are on
the bottom connector, even channels on the
top connector.
Digital Input Card, C-PP-RDIC-8
Scale card with optional key to enable
feed bin operation. The bottom connector
provides +5 Volt and -5 Volt power to
each scale; the upper connector accepts the
sense wires.
Scale Card, C-PP-RLCC—4
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