NORAC UC4.5-BC-GN2 Part 1 - Manual (Page 18)

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7.2 Valve Gain Test
1. Ensure the UC4.5 control panel is in MANUAL mode, at the Normal Operating Screen.
2. Navigate to the "More ?" menu prompt in the menu. Press to confirm.
3. Navigate to the roll section. Press to confirm.
4. Press twice to access the roll CW GAIN (" KP ") menu prompt.
Before continuing make sure the boom has room to move at full speed for
one second. Ensure the main lift is up to allow room for the boom to move.
5. Press and hold .
6. The valve will turn on at 100 percent speed for exactly one-second. The LCD screen will
show the actual change in height.
7. The change in height reading is live as long as is held. Wait until the height reading has
settled to a stable value and record this reading. This is the boom speed in mm per second
(mm/s) or inches per second (in/s) if inches is the selected units.
8. Repeat the Manual Gain Test three times, repositioning the boom as necessary.
9. Average the three readings
10. Set the Gain value using the buttons. Use the following table as a guideline.
Table 5: Roll Section Parameters
Boom Speed
(mm/s) Gain Setting
(KP)
> 2200 1
2200 - 1000 1 - 5
1000 - 400 5 - 9
400 - 100 9 - 11
< 100 11 - 12
11. When satisfied with the Gain roll clockwise test (" KP "), repeat this test for the roll
counter clockwise (" KP ").
It is recommended to repeat the Control System Test in the Automatic
System Setup after the slant valve has been calibrated.