About the air option for ball screw linear stages – Rockwell Automation MPMA Integrated Multi-Axis Linear Stages User Manual
Page 40
40
Rockwell Automation Publication MPMA-UM001B-EN-P - November 2010
Chapter 4 Mounting and Connecting the MP-Series Integrated Multi-axis Linear Stage
c. Hand tighten the knurled collar five to six turns to fully seat each
connector.
About the Air Option for
Ball Screw Linear Stages
A ball screw linear stage may connect to an external air supply via the air port; see
. This can reduce the ingress of particulates
in a dusty environment.
• Air supplied to the ball screw stage should not exceed 10 kpa (1.45 psi).
• Plastic air tubing should be 6 mm (0.2362 in.) OD Teflon FEP tubing.
• If using only one port, plug other port.
• Maximum flow rate 15 SCFM based on 4mm ID tube and 0.5m max
length.
About the Brake Option for
Ball Screw Linear Stages
The brakes offered as options on the ball screw linear stages are holding brakes.
They are designed to hold the carriage in place up to the rated brake holding
force. The brakes release when voltage is applied to the brake coil. Voltage and
polarity supplied to the brake must be as specified to be sure of proper brake
performance.
The brakes are not designed to stop the movement of a linear stage. Servo drive
inputs should be used to stop motion. The recommended method of stopping
motion is to command the servo drive to decelerate to 0 mm/s (0 in/s), and
engage the brake after the servo drive has decelerated the linear stage to 0 mm/s
(0 in/s).
If system main power fails, the brakes can withstand use as stopping brakes.
However, use of the brakes as stopping brakes creates rotational mechanical
backlash that is potentially damaging to the system, increases brake pad wear, and
reduces brake life. The brakes are not designed nor are they intended to be used as
a safety device.
ATTENTION: Keyed connectors must be properly aligned and
hand-tightened the recommended number of turns.
Improper alignment is indicated by the need for excessive force,
such as the use of tools, to fully seat connectors.
Connectors must be fully tightened for connector seals to be
effective.
Failure to observe these safety procedures could result in damage
to the motor, cables, and connector components.