ATI Technologies 39-0050 Посібник з монтажу та експлуатації - Сторінка 4
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Installation
Power Supplies or Interfaces must be provided with a clean 230volt mains supply. Avoid
sharing an outlet with another load. Use a switched, fused outlet not a 13Amp plug and socket.
Position the Digital Feeder Controls as high as possible away from moisture and splashes
but within easy, convenient reach. Cable runs should be as short as possible.
The DC supply to the Controls and the Timing Pulse cable may occupy the same conduit,
but must be kept separate from the Feeder DC, Milk Pump and Vacuum Pulsation Unit supplies.
Cables should be at least 500mm from mains cabling and as far away from fluorescent lights as
possible; they can interfere with the Timing Pulse.
Always use the cable entries along the bottom edge of the Control casing. Although some
of the diagrams show entry to the side or top of the case, this is for clarity only and must be
avoided.
Do not position the Controls along a straight run of conduit- use 'T' connectors. Straight
runs create unimpeded air paths and moisture can be deposited inside the Controls.
Err on the generous side for cable sizes. Minimum recommendations are:
2.5mm csa for DC power supplies to Digital Feeder Control.
1.5mm csa for Digital Control to Feeder Motors.
0.5mm csa for Timing Pulse supply from power supply to Control.
A single run of 2.5mm csa cable from the power supply will provide sufficient power for up to 6
Controls. Additional Controls will require a further cable run back to the power supply. Two
outlets are provided for both (+) and (-) cables on ATL power supplies. Arrange the cable
neatly inside the Control casing. Never loop or coil spare cable- cut it to the correct length.
If new Controls are replacing the older mechanical type, check the existing connections
cutting away any 'blackened' cable before fitting the cables. The connector configurations are
different between old mechanical and new digital types (Data Sheet 8A).
Diodes must be fitted across low voltage (12 or 24volt) DC feeder motors or solenoid
terminals. ATL feeders already have these fitted as standard; most other makes do not.
Running a motor without a diode fitted will expose the Control circuitry to back emf, could cause
irreparable damage and will certainly void the warranty. Do not fit diodes to high voltage - 110
or 230volt motors or any motor operating with an AC supply.
Check for splits or holes to switch covers and the display membrane. If there is any
opportunity for water to enter the casing do not use the Control. Doing so could jeopardise the
warranty. Replace the damaged part as soon as possible.
DIGITAL CONTROL
INSTALLATION
& OPERATION: 2
Diode connection across motor terminals.
M
+
-
The Control can operate both electric and vacuum feeders; 12 volt DC electric motor feeders are
supplied directly from the control whereas vacuum feeders are operated via a solenoid valve.
Higher voltage feeders can be accommodated but require a Feeder Interface to switch the high
voltage- AC or DC- to the feeder motors.
Before the system is switched on for the first time, the output configuration must be
checked. The Configuration Jumper is located on the rear of the Control circuit board, bottom
right-hand corner (see page 3).
Vacuum Operated Feeders:
Vacuum feeders will need the Jumper to be fitted in one of the three positions shown in Figures
(2 to 4) on the following page. The actual position- 1, 2 or 4 pulse depends upon the feeder
type. As a general guide, the major makes should be set as follows:
Manufacturer
Pulse(s)
Fullwood Rationmaster
1 or 2
Alfa Laval
2 or 4
Orby
1
Somerset
4
Westfalia EP
1
Westfalia M Type
1 or 2
The Global Timing Pulse (see page3) provides a facility for varying the pulse duration and
therefore, the speed of repeated pulses.
The positive end of the diode is marked
with a band; connect to the (+) terminal.
Preferred arrangement with a resistor in
series with the diode
Resistor: 100 Ohms (100R) 2watt
Diode: 1N4002 100v PIV 1Amp or better
Do NOT fit diodes to AC motors.
Feed/Pulse(grms)
500
500
500
100
700
100