APPENDIX
DynaJet
®
Flex 7140
OPER
ATION
MENU OPTIONS
INTR
ODUC
TION
9
98-05345-EN R2
INITIAL ST
AR
TUP
Test 1 – Duty Cycle 100%
1. Start by setting DynaJet Flex duty cycle to
100%
.
Test 1A – Minimum Operating Pressure
2. Determine rate controller gain value with operating pressure
at MINIMUM.
3. Reduce target rate or machine speed until system reaches
the minimum operating pressure.
4. Adjust the gain value until stable.
Controller gain value at minimum pressure:_____________
Test 1B
– Maximum Operating Pressure
5. Set rate controller gains values with operating pressure at
MAXIMUM.
6. Increase target rate or machine speed until system reaches
the maximum operating pressure.
7. Adjust the gain value until stable.
Controller gain value at maximum pressure:____________
Test 2 – Duty Cycle 50%
1. Start by setting DynaJet Flex duty cycle to
50%
.
Test 2A – Minimum Operating Pressure
2. Set rate controller gains/values with operating pressure at
MINIMUM.
3. Reduce target rate or machine speed until system reaches
the minimum operating pressure.
4. Adjust the gain value until stable.
Controller gain value at minimum pressure:_____________
Test 2B – Maximum Operating Pressure
5. Set rate controller gains/values with operating pressure at
MAXIMUM.
6. Increase target rate or machine speed until system reaches
the maximum operating pressure.
7. Adjust the gain value until stable.
Controller gain value at maximum pressure:____________
Test 3– Duty Cycle “Minimum Duty Cycle”
1. Start by setting DynaJet Flex duty cycle set to “Minimum Duty
Cycle” value (default is 30%)
Test 3A
2. Set rate controller gains/values with operating pressure at
MINIMUM.
3. Reduce target rate or machine speed until system reaches
the minimum operating pressure.
4. Adjust the gain value until stable.
Controller gain value at minimum pressure:_____________
Test 3B
5. Set rate controller gains/values with operating pressure at
MAXIMUM.
6. Increase target rate or machine speed until system reaches
the maximum operating pressure.
7. Adjust the gain value until stable.
Controller gain value at maximum pressure:____________
NO. 7 CALIBRATE THE DYNAJET FLEX SYSTEM
Coarse gain will be increased until the system is oscillating across
the target pressure. Once that is occurring, then fine gain will be
increased to smooth/eliminate the oscillation.
• A coarse gain too low will cause the system to be stable but
slow to get on target.
• A coarse gain too high will cause the system to overshoot the
target range when a speed change happens.
•
A fine gain too low will allow the system to continue to
oscillate.
•
A fine gain too high will cause the system to oscillate too
rapidly and cause a thumping in the system.
•
The lower the target pressure, the higher the fine gain can
be set, so calibrating needs to be done at highest pressure/
smallest droplet size that the machine will typically be
operating.
• Speed changes will be required for the best calibrating
possible.
• Simulated speed changes are preferred, but driving the
machine is acceptable.
• Steady speeds are required.
1. From the Work screen, access the
Menu Options
.
2. Press the SETUP button .
3. Use the PREVIOUS/NEXT PAGE buttons to go to the
next setting option.
4. Use the ADJUSTMENT buttons to change setting.
5. Press the HOME button to return to the Work screen.
