N. V. Nederlandsche Apparatenfabriek NEDAP SF2 Manual Do Utilizador
D300F
T/R Single Feeding VC4
- 2 -
4/2012 Version 0.6
2
Operation
Feeding
- Wait until a X-ponder of a cow is identified in the antenna.
- When a cow is identified send the X-ponder number to the process controller and
- When a cow is identified send the X-ponder number to the process controller and
wait for feed data.
- When feed data are received, start feeding
- First feed 1 will be dispensed, then feed 2 and 3 when connected en programmed
- Wait until interval time has passed.
- When there is no feed balance left, the feeding will stop
- First feed 1 will be dispensed, then feed 2 and 3 when connected en programmed
- Wait until interval time has passed.
- When there is no feed balance left, the feeding will stop
Interval time calculation
Definition of interval time
interval time =
time between last motor run (of any connected motor) and
the next motor run (of any connected motor)
The interval time is calculated per feed type out of the
following parameters (supplied by the process controller) :
the next motor run (of any connected motor)
The interval time is calculated per feed type out of the
following parameters (supplied by the process controller) :
•
feed portion size of 1 motor run
•
feed consumption / minute
Calculation of interval time
interval time =
(per feed type)
(per feed type)
feed portion-size x 60 (sec.)
feed consumption / minute
Example :
feed 1
•
feed portion-size
= 100 gr.
•
feed consumption / minute
= 1000 gr. / min.
feed 2
•
feed portion-size
= 150 gr.
•
feed consumption / minute
= 500 gr. / min.
interval time feed 1 =
100 x 60 = 6 sec.
1000
1000
interval time feed 2 =
150 x 60 = 18 sec.
500
500
Proportional feeding
The T/R SF feeds proportional, which means that the total feed-amount is fed
proportional in time : the ratio between the different feed types is constant.
proportional in time : the ratio between the different feed types is constant.
Example :
feed 1
•
feed portion-size
= 100 gr.
•
feed balance = 3.0 kg.
⇒
# portions = 30
•
interval time
= 6 sec.
feed 2
•
feed portion-size
= 150 gr.
•
feed balance = 0.9 kg.
⇒
# portions = 6
•
interval time
= 18 sec.
The portion-ratio feed 1 / feed 2 = 30 : 6 = 5 : 1, which implicates that on every
portion of feed 2, five portions of feed 1 are fed.
portion of feed 2, five portions of feed 1 are fed.
The following feeding-procedure is executed
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, supply 1 portion of feed 2, wait interval time feed 1, wait
interval time feed 2
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, supply 1 portion of feed 2, wait interval time feed 1, wait
interval time feed 2
supply 1 portion of feed 1, wait interval time feed 1
supply 1 portion of feed 1, wait interval time feed 1
, etc.