DynaJet® IC7140
98-05347-EN-R1_A4LT-DynaJetIC7140-UM.docx
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A
Flow Pulses Tests
The following tests will confirm that pulse of flow through the solenoids
will not affect rate controller stability even when duty cycle is below
50%.
1.
Set DynaJet IC7140 operating mode to Manual Mode.
2.
Using the PWM INCREASE KEY, PWM DECREASE KEY or
100% DUTY CYCLE KEY, set PWM duty cycle as noted in each
test.
PWM Increase – Press to increase the PWM Duty Cycle
Percentage.
PWM Decrease – Press to decrease the PWM Duty Cycle
Percentage
100% Duty Cycle – Press to jump the PWM duty cycle
percentage to 100% (or the preset maximum Duty Cycle)
3.
Preform tests as specified in the following sections, taking note of
the pressure levels during each test.
4.
Set rate controller valve gain to the highest value that will work
with all three of the following tests. This will be the lowest gain
value found in the 3 tests. Once established, this value should not
need to be changed again.
Controller Gain Value
Minimum
Maximum
Test 1 – Duty Cycle 100%
3
5
Test 2 – Duty Cycle 50%
2
3
Test 3 – Minimum Duty Cycle
3
4
If the system does not control acceptably with this gain value at all
manual duty cycle settings, then something is wrong with the system
that needs to be resolved before trying to calibrate the
DynaJet IC7140 System. Contact TeeJet Technologies Customer
Support or an authorised TeeJet Technologies dealer if additional
support is required.
Selected Nozzle Minimum and Maximum
Notate the following about the current nozzle.
1.
Current nozzle:
2.
Minimum Pressure:
3.
Maximum Pressure:
Pressure Range
Series
psi
bar
XR TeeJet 110
15-60
1-4
XRC TeeJet 110
15-60
1-4
Turbo TeeJet
15-90
1-6.25
Turbo TeeJet Induction
15-100
1-7
TTI TwinJet
20-100
1.25-7
TwinJet 110
30-60
2-4
Turbo TwinJet
20-90
1.25-6.25
AI Turbo TwinJet
20-90
1.25-6.25
TX ConeJet
30-300
2-20
TXA ConeJet
30-300
2-20
TXR ConeJet
30-360
2-25
Test 1 – Duty Cycle 100%
1.
Start by setting DynaJet IC7140 duty cycle to
100%
.
Test 1A – Minimum Operating Pressure
Determine rate controller gain value with operating pressure at
MINIMUM.
2.
Reduce target rate or machine speed until system reaches
the minimum operating pressure.
3.
Adjust the rate controller gain value until stable.
Controller gain value at minimum pressure:
Test 1B – Maximum Operating Pressure
Determine controller gains values with operating pressure at
MAXIMUM.
4.
Increase target rate or machine speed until system reaches
the maximum operating pressure.
5.
Adjust the rate controller gain value until stable.
Controller gain value at maximum pressure:
Содержание DYNAJET IC7 140
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