Rockwell Automation MPAR Electric Cylinders - Manual (Page 25)

MP-Series Electric Cylinders 25
Rockwell Automation Publication MPAR-IN001D-EN-P - September 2012
7. Set overtravel limits according to the maximum speed of the servo drive system and the
payload of the application.
You can determine the deceleration distance before the piston rod contacts the end of
travel based on the deceleration rate of the load, and the available peak force from the
motor/ballscrew combination. Use the
Motion Analyzer software to calculate the
minimum deceleration distance at the maximum speed of your application.
IMPORTANT Set travel limits and direction of tuning moves in reference to piston-rod starting
position. Leave adequate travel for the piston rod to complete its moves while
tuning.
ATTENTION: Software overtravel must be set prior to initiating the tuning process.
Check the starting position of the piston rod and allow for adequate travel.
Insufficient travel while auto tuning will trigger the software overtravel or cause an
end-stop impact.
ATTENTION: Care should be taken to not exceed the physical travel limits of the electric
cylinder. Doing so will cause the electric cylinder to reach the mechanical end of stroke.
An impact at the end of stroke can physically damage the screw and internal
components of the electric cylinder.
IMPORTANT Do not exceed the maximum energy specified for end-of-travel impacts.
Cat. No. Impact Energy, max
MPAR-x1xxxx-xxx 0.0001 J
MPAR-x2xxxx-xxx 0.0002 J
MPAR-x3xxxx-xxx 0.0004 J
Maximum Velocity for End-stop Impact with No Load
Cat. No.
Extended Mass
g (oz)
Impact Velocity, max
mm/s (in/s)
MPAR-x1100B-xxx 239 (8.4) 28.9 (1.14)
MPAR-x1200B-xxx 308 (10.8) 25.5 (1.00)
MPAR-x1300B-xxx 377 (13.9) 23.0 (0.91)
MPAR-x1400B-xxx 446 (15.7) 21.2 (0.83)
MPAR-x1100E-xxx 269 (9.5) 27.3 (1.07)
MPAR-x1200E-xxx 338 (11.9) 24.3 (0.96)
MPAR-x1300E-xxx 407 (14.36) 22.2 (0.87)