ATI Technologies PULSE-8 User manual

PULSE-8:
MASTER PULSATION
CONTROL
© ATL Agricultural Technology Limited: February 2006
Version - February 2006
For Software Version V1.02
Part Number - 39-0020

GOOD PRACTICE: MainsSupply.
Aseparatemainssupplyand earthrunningdirectlyfromthe consumermeteris essential.
Avoid routing the mains cable to the power supply close to other supplies especially those providing intermittent
current-motorsthatare startingand stoppingcontinually or highpowerheaterswiththermostaticcontrol.
Terminate in a sealed, fused, double pole switched outlet fitted with a 13Amp (Type 1362) fuse or trip. A 3-pin ring
mainsocketis not suitablein parlourconditions. All mainscablingmust be containedinafirmlysecureddurableconduit.
PULSE-8
MASTER PULSATION
CONTROL: INDEX
© ATL Agricultural Technology Limited: February 2006
INDEX
GoodPractice: Index
Siting&Initial SwitchOn: 1
ParlourLayouts: 2
Pulse-8Features: 3
Pulse-8Operation : 4
n
n
n

PULSE-8
MASTER PULSATION
CONTROL: 1
Siting:
The PULSE-8 unit should be sited to allow easy access and minimal cable
runs to the solenoid valves. The common (+) supply should be taken
from either of the 2 connector block terminals and looped to all of the
solenoids.Use2.5csared cable.
The appropriate (-) switched supply is taken from the 8-way plug-
in (see below) to each solenoid valve depending upon the parlour
configuration.Use2.5csa black cable.
The PULSE-8 requires a 240 or 220volt 50Hz AC supply from a
switched,fusedoutlet,not a 13amp plugandsocket. Use a 5Ampfuse.
12, 15, 18 or 24volt solenoid valves either normally open or
normally closed may be used. The solenoid output voltage is selected by
connecting the 'flying' secondary tap (Black wire) to the appropriate
terminal on the connector block.See opposite. The control is shipped with
12voltsolenoidvalvesselected.
A negative supply wire (blue) and two control supply wires
(red+yellow) are pre-fitted to the plug-in connector. Ensure that the
plug-inis firmlylocatedin the socketonthecircuit board.
InitialSwitchON
With the MODE SELECT SWITCH in the up (Stand-by) position, power up
the unit. The four channel indicators should begin to flash; the digital
displays will remain unlit. Move the SELECT switch to the ON position and
the Frequency and Ratio displays together with the Reset indicator should
illuminate. The unit is now running with the default settings (see Page 4)
asshownon the displaysand the solenoidvalvesshould be operating.
Circuit Board Plug In Connector: Check orientation before fitting to Control Board
Solenoid (4) OUT Switched Negative
Solenoid (3) OUT Switched Negative
Solenoid (2) OUT Switched Negative
Solenoid (1) OUT Switched Negative
LED Supply: RED prewired
Control Supply: YELLOW prewired
Cable Securing Screws
Secondary Tap: Black: Fit to appropriate Select connector: 12, 15, 18 or 24volt
AC
Mains
IN AC IN:
White
0v DC
OUT:
BLUE to
Main
Board
Connector Block: Mains Input, Solenoid Valve Operating Voltage Select and (+) Common Output.
240volts IN
220volts IN
Neutral IN
Earth IN
Select 24volts
18volts
15volts
12volts
+volts to Solenoids (L)
+volts to Solenoids (R)
Transformer
Connections:
Brown
Grey
Blue
Yel/Green
BLACK (24v)
GREEN (18v)
RED (15v)
YELLOW (12v)
+V DC Out RED
Rectifier on Chassis
View from top of plug
To LEDs on PCB
Yellow 12v to PCB
}0voltsINSolenoidsupply:BLUEprewired
Common (+) 12volts
to all Solenoid Valves.
Diode 1N4002
across terminals.
Observe banding to
(+) terminal.
Negative Switched:
Channel 1, 2, 3 or 4
Solenoid Valve: Diode connections
© ATL Agricultural Technology Limited: February 2006

A 16/16 parlour with PULSE-8 2/2 configuration is illustrated below.
Every stallhas two solenoid valvesfitted,one for each pair of teat cups on
thecluster.
The teat cup pairs may be arranged either diagonally or front-to-
back and because they are connected to different PULSE-8 channels, will
pulsealternately.
Thenumbers in circlesrepresent thePULSE-8channels.
PULSE-8
MASTER PULSATION
CONTROL: 2
ParlourLayouts
The illustration right shows a 16/16 parlour with the PULSE-8 in 4/1
configuration.
The parlour is divided into 4 quadrants each of four stalls with one
PULSE-8 channel driving each quadrant. There is only one solenoid valve
toeachstall, so allfourteat cups on a clusterarepulsed together.
11 11 11 11 22 22
44 4433 33
Stall 1 Stall 2 Stall 3 Stall 4 Stall 5 Stall 6 Stall 7 Stall 8
Stall 1 Stall 2 Stall 3 Stall 4 Stall 5 Stall 6 Stall 7 Stall 8
Right Hand Side
Left Hand Side
Vacuum Line
Pulse: 60% Release: 40%
Pulse: 60% Release: 40%
Pulse: 60% Release: 40%
Pulse: 60% Release: 40%
Diagram showing the timing relationship between the 4 channels during
acyclestart and finish.
One complete cycle using the 60% Pulse/40% Release setting
1
2
3
4
Stall 1 Stall 2 Stall 3 Stall 4 Stall 5 Stall 6 Stall 7 Stall 8
Right Hand Side
Stall 1 Stall 2 Stall 3 Stall 4 Stall 5 Stall 6 Stall 7 Stall 8
Left Hand Side
Vacuum Line
1 3 2 4 2 4
1 3 1 3 2 4 2 4 1 3
2 4 1 3 1 3
2 4 2 4 1 3 1 3 2 4
© ATL Agricultural Technology Limited: February 2006

PULSE-8
MASTER PULSATION
CONTROL: 3
Channel Indicators:
Illuminate when
channel is on
Ratio Select Buttons:
Used in conjunction with
the Up/Down buttons,
Ratio 1 selects channels 1
and 3, whilst Ratio 2 selects
channels 2 and 4.
Hold both buttons down and
switch from up (STAND-BY) to ON
to enter the Access mode.
Mode Select Switch:
In the up (STAND-BY) position, the
displays extinguish and pulsation reverts
to 50/50 ratio setting. Switched to ON,
the displays illuminate and pulsation
starts using the data setup.
Use the switch in combination with other
buttons to select different program-ming
modes are available.
ResetIndicator:
Illuminatesduring a
manual reset or if
programmeddata is
lost.
Up and Down Buttons: Used to increase or
decrease the frequency and ratio settings.
Held down together whilst switching the Mode
Select Switch from up (STAND-BY) to ON, the
duty cycle is inverted.
Frequency Display:
Displays the frequency setting in the range 30 to 120
pulses per minute (ppm). The default setting is 40ppm.
Frequency Button:
Press and hold whilstusing the Up/Down buttons to
increase or decrease the frequency in Access mode. Select
STAND-BY, hold the Frequency button down and select ON
to revert to default settings.
AccessMode
Indicator:
Illuminatesduring
ACCESSmode whilst
the machine parameters
are being entered.
SplitIndicator:
Illuminates when different ratioshave
been selected for channel pairs 1+3 and
2+4.
InvertIndicator:
Illuminates when the On and OFF periods
within a cycle have beenswapped.
Used for normally ON solenoid valves.
RatioDisplay:
Displays the ON
period of a cycle as
a percentage of the
complete cycle.
For example, if the
display shows 60,
the appropriate
channel will be ON
for 60% of the cycle
and OFF for 40%.
Access for Solenoid
Valve cables
Use 2.5csa.
Mains cable
entry gland
Emergency Battery
Connectors 12v or 24v
_
+
Power Source
Switch
Emergency
Battery UP
Mains
DOWN
Ratio 1
Freq
s
s
Ratio 2
Pulse-8 Master Pulsation System
1 2 3 4 ON
FREQUENCY RATIO
ACCESS INVERT
RESET SPLIT
© ATL Agricultural Technology Limited: February 2006

PULSE-8
MASTER PULSATION
CONTROL: 4
OperatingthePULSE-8:ChangingtheFrequency:
The frequency is measured in pulses per minute (ppm) and can be set in the range 30 to
120ppm in single steps. Before the frequency can be changed, the unit must be in Access
mode. With the power on, move the MODE SELECT switch up (STAND-BY). The displays will
extinguish, but the channel indicators will continue to flash. Press and hold both the RATIO 1
and RATIO 2 buttons and, at the same time move the MODE SELECT switchto ON. The displays
will re-illuminate together with the RESET and ACCESS indicators. The unit is now in Access
mode.
Release the RATIO buttons and press the FREQ button together with either the UP or
DOWN button depending upon whether an increase or decrease in frequency is required. The
FREQUENCY display shows the frequency selected. To store the new setting, put the MODE
SELECT up (STAND-BY) position and then back to the ON position. The unit will resume pulsing
atthenew frequency.
Changingthe Ratios:
The ratio represents the percentage of the pulse length that the solenoid valve is energised. So,
for example, a ratio of 60 displayed means that the solenoid valve will be on for 60% of the
pulseduration and 40%off.Again,the unit must be in theAccess mode to makechangesto the
ratio. To change the setting for channels 1 and 3, press and hold the RATIO 1 button and, at the
same time press either the UP or DOWN button for an increase or decrease in the value.
Channels 2 and 4 are altered in the same way but by pressing the RATIO 2 button instead. The
new setting is displayed in the RATIO window. Store the new settings by switching MODE
SELECT up (STAND-BY) and then back to ON. Ratios may be changed in single steps from 50%
to75%.
TheSplit Function:
It is often desirable to have different ratios for channels 1+3 and 2+4 since the variable
pulsing spreads the load on the vacuum line.If the ratios are different, the SPLIT indicator will
illuminate as a warning. However, if it is necessary to set all channels to the sameratio, put the
unit into Access mode and examine the settings by pressing first the RATIO 1 button and then
the RATIO 2 button. Choose whichever ratio is suitable by pressing the RATIO button for the
setting NOT required together with either the UP or DOWN button until the SPLIT indicator is
extinguished.Allchannelswill nowhavethe same ratiosetting.
TheInvert Function:
To save power, some solenoid valves are designed to be normally ON, which means that they
are open and will pass a vacuum when unenergised; when power is applied to them they block
the vacuum line. The PULSE-8 can accommodate these new valves by swapping the ratio
values. So, for a conventional setting of say 60% on and 40% off, for normally on valves these
areswappedto become 60% off and 40% on but for the duration of the 60% off time the valve
SPECIFICATIONS:
InputVoltage: 220or240volts AC50Hz
OutputVoltage: 12,15, 18or 24volts selectable.
OutputCurrent: 24amps at12volts to 12amps at 24volts.
Solenoids: 48at 12voltsDC 0.5amp to 24 at24volts DC0.5amp.
Fuses: 5ampx20mm Quickblowto each channel.
Outputs: 4grouped aschannels 1+3 and 2+4.
Frequencies: 30ppmto120ppm in 90 singlesteps.
Ratios: 25selectable
50:50to 75:25normal or
50:50to 25:75inverted.
SplitPulsation: Available.
Stand-by: Operatesin 50:50ratio and frequency set by:
PriorFebruary1999: byrotary control.
Post February1999: by selectors 4 fixedfrequencies.
Memory: Functionalfor atleast 48 hours.
Defaults: Frequency:40ppm/ Ratios:60:40/ Split:OFF/ Invert:OFF
EmergencyBattery: 12 or24volt with PowerSourceSelect Switch.
willstill be passingthevacuum becauseitisnormally openoron.
To invert the ratios, move MODE SELECT up (STAND-BY), pressand hold both the UP and
DOWN buttons and switch MODE SELECT back to ON. The INVERT indicator will now illuminate.
To storethesetting, movetheMODESELECT switchup(STAND-BY)and thenbackto ON.
Reset:
If the mains power is turned off or interrupted, the data battery backup inside the unit will
retain the settings for about 48 hours. Beyond that time the data may be lost and when the
power is restored the settings may have reverted to the defaults. This situation will be shown by
the RESET indicator and the preferred settings will have to be reentered. Generally, a manual
resetis not necessary,but can be achievedbyswitchingMODE SELECTup(STAND-BY),pressing
andholding the FREQ buttonandthenswitching MODESELECTback to ON. The default settings
willbe displayedinthewindows.
EmergencyBatterySupply
If the mains supply fails, connect either a 12 or 24volt battery across the Emergency Battery
Terminals taking care that the polarities are correct. Push up (OFF) the Power Source switch on
the right hand end of the casing and the Pulse-8 will continue to operate. When mains is
restoreddisconnectthe battery andswitchthe PowerSourceto the ON position
© ATL Agricultural Technology Limited: February 2006