NORAC UC4.5-BC Operator Manual - Manual (Page 30)

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• The change in height reading is live as long as the button is held. Wait until the height
reading has settled to a stable value and record this reading. This is the boom speed in
inches per second (in/s) or mm per second (mm/s).
• Repeat the Manual Gain Test three times, repositioning the boom as necessary.
• Average the three readings. Typical values are between 15 and 50 inches/sec.
• Set the Gain value using the buttons using the tables below as a guideline. Right and
left gain settings are polarized for direction as shown in Table 2.
Note: Gain values depend on many more factors than just speed, and therefore are best set
automatically or by an experienced operator.
Note: Test the system in automatic mode at a sensitivity setting of five. The sensitivity setting will scale
the gain settings. If the booms are not reacting quickly enough, a higher gain setting will make the
boom respond faster. If the booms are too jerky or unstable, use a lower the gain setting or improve the
boom’s mechanical damping.
Table 2: Gain Settings
Function
Boom Speed (inch /
sec)
Up Gain Down Gain
Left / Right 1 - 5 Too Slow Too Slow
Left / Right 5 - 15 225 - 175 100 - 70
Left / Right 15 - 25 175 - 150 70 - 50
Left / Right 25 - 40 150 - 100 50 - 30
Left / Right 40 - 70 100 - 50 30 - 15
Left / Right 70 + 50 - 1 15 - 1
Main (on / off) 1 - 5 100 - 75 100 - 75
Main (on / off) 5 - 10 75 - 50 75 - 50
Main (on / off) 10 - 15 50 - 30 50 - 30
Main (on / off) 15 - 20 30 - 15 30 - 15
Main (proportional) 1 - 5 85 - 75 85 - 75
Main (proportional) 5 - 10 75 - 66 75 - 66
Main (proportional) 10 - 15 66 - 60 66 - 60
Main (proportional) 15 - 20 60 - 53 60 - 53
Roll 1 - 10 254 - 225 254 - 225
Roll 10 - 15 225 - 175 225 - 175
Roll 15 - 20 175 - 150 175 - 150
Roll 20 + 150 - 100 150 - 100