Rockwell-automation MPAS Integrated Linear Stages User Manual download pdf (Page 37)

Rockwell Automation Publication MP-UM001D-EN-P - September 2013 37

Mounting and Connecting Chapter 4

c. Fully seat the feedback connector and the power/brake connector.

• Hand tighten the collar of a threaded DIN (M4) connector six turns.

• Hand tighten the collar of a SpeedTec (M7) connector one-quarter turn.

About the Air Option for Ball

Screw Linear Stages

A ball screw linear stage can connect to an external air supply via the air port,

item 21

on page 20. This can reduce the ingress of particulates in a dusty

environment.

• Air supplied to the ball screw stage must not exceed 270 kPa (40 psi).

• Plastic air tubing must be 6 mm (0.2362 in.) OD Teflon FEP tubing.

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. Use the servo

drive inputs 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.

Table 2 - Brake Specifications for Ball Screw Linear Stage Motors

ATTENTION: Keyed connectors must be properly aligned and hand-tightened.

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.

Motor Cat. No.

Backlash

(brake engaged) Holding Force

Coil Current

(at 24V DC)

Brake Response Time

Release

Engage -

Suppression via

MOV

Engage -

Suppression via

Diode

μm (in.) N (lb) A ms ms ms

MPAS-xxxxxx-V05xA 100 (0.004) 5187 (1166) 0.46…0.56 50 20 42

MPAS-xxxxxx-V20xA 1294 (291)

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 111 112

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Rockwell-automation MPAS Integrated Linear Stages User Manual Page 37

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