Rockwell Automation 1756-HYD02 ControlLogix Hydraulic Servo Module - Manual (Page 64)

64 Publication 1756-UM525A-EN-P - June 2003
Chapter 4 Using the 1756-HYD02 Module Features
Dynamics Tab
The parameters on this tab can be edited in two ways:
• Type parameter changes in the fields available on this tab and use the
OK or Apply buttons to save your edits.
• Edit in the Manual Adjust dialog. To do so:
a. Click on the Manual Tune button.
b. Use the spin controls to edit parameter settings.
Your changes are saved the moment a spin control changes any
parameter value.
The parameters on this tab become read-only when the controller is online if
the controller is set to Hard Run mode, or if a Feedback On condition exists.
When RSLogix 5000 is offline, the parameters described in Table can be
edited and the program saved to disk using either the Save command or by
clicking on the Apply button. You must re-download the edited program to
the controller before it can be run.
The table below lists the configurable features on the Dynamics tab.
Feature: Definition:
Maximum Velocity The steady-state speed of the axis, it is initially set to Tuning Speed by the tuning process. This value is
typically set to about 90% of the maximum speed rating of the motor. We recommend this value be set to
70% of the maximum speed where the maximum pressure is twice the valve-rated pressure and 57% of the
maximum speed where the maximum pressure is three times the valve-rated pressure. This provides
sufficient “head-room” for the axis to operate at all times within the speed limitations of the motor. Any
change in value, caused by manually changing the spin control, is instantly sent to the controller.
Maximum Acceleration The maximum acceleration rate of the axis, in Position Units/second, it is initially set to approximately 85%
of the measured tuning acceleration rate by the tuning process. This provides sufficient “head-room” for the
axis to operate at all times within the acceleration limits of the cylinder (or axis). Any change in value,
caused by manually changing the spin control, is instantly sent to the controller.
Maximum Deceleration The maximum deceleration rate of the axis, in Position Units/second, it is initially set to approximately 85%
of the measured tuning deceleration rate by the tuning process. This provides sufficient “head-room” for the
axis to operate at all times within the deceleration limits of the cylinder (or axis). Any change in value,
caused by manually changing the spin control, is instantly sent to the controller.