New Leader L5034 G4 Assembly/Operators/Parts Manual page 67

Controller Operations
Response Threshold setting� Represents slow speed of servo valve� Decreasing value causes servo
valve to run slower� Default setting is 8%�
• Response Threshold - Determines where control channel switches between using Valve Response
1 and Valve Response 2 speed setting� Leaving all other valve control settings at default value
and making small adjustments to this setting is usually all that is required to fine-tune system
performance� Default setting is 4�
Decreasing Response Threshold value will have overall effect of speeding up servo valve response�
NOTE:
Increasing Response Threshold value will have overall effect of slowing servo valve response�
• Allowable Error - Determines the percent of error that is allowed prior to product control system
making any flow rate changes. 2% - 3% is normal dead band setting range.
PWM
• PWM Frequency
• Frequency that the PWM control valve is pulsed�
• Settings can be found from valve manufacture
• Do not adjust
• Zero Offset
• Represents the maximum duty cycle sent to the control valve
with out producing any hydraulic flow.
• Increase this number to hit target rate sooner
• Note: Setting this value too high will result in constant
overshooting of the target rate�
• PWM Gain
• Gain determine show aggressively the control valve responds
when making rate changes� Higher the value means more
aggressive system response�
• Note: Setting this value too high will result in erratic operation�
• Allowable Error
• Is the percent of error that is allowed before the product control
system makes any flow rate changes.
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