Baldor iMN1800 manual Lmbl Series, Brushless Linear Iron Core Servo Motor Installation

LMBL Series

Brushless Linear Iron Core Servo Motor

Installation Refer to Figure 2-1.

1.Install the magnet assembly onto the machine mounting base.

2.With the slide assembly removed from the rails, install the coil assembly onto the slide, tightening the mounting screws.

3.Place a non–magnetic shim over the magnets, sized to cover all the magnets.

(The shim thickness must be equivalent to the air gap specification. The normal air gap is 0.030″ ± 0.005″ unless otherwise specified).

4.Install and push the slide along the rails, positioning the coil assembly directly over the shim.

(An alternate method is to install the slide on a set of rails that is identical to the one being used. Butt the temporary rails to the system rails and transfer the slide onto the system rails.)

For either method, it is extremely important to uniformly tighten the mounting screws. Improper tightening will bend the primary or secondary and damage the motor.

If there is not enough space to install the coil assembly as described, use this alternate procedure.

Alternate Installation Refer to Figure 2-1.

1.Place the non–magnetic shim on the magnet track.

2.With a firm grip on the coil assembly, place one end of it on the shim and slide it into place, centered over the magnets. Be careful not to let the magnet and coil “Slam” together.

3.Align the fastening screw holes on the slide with the holes on the coil assembly.

4.Loosely install all the mounting screws.

5.Insert enough shims between the slide and the coil assembly to fill the gap.

6.Tighten all the mounting screws, alternating in a systematic manner while tightening such that the coil assembly is drawn–up evenly leaving a uniform air gap between the coil assembly and the magnets. This air gap must be maintained along the entire length of the magnet assembly i.e.; the coil assembly must never touch the magnets at any point when moving along the length of the magnet assembly and the air gap specification must be maintained at all times.

7.Remove the shim that sets the air gap prior to operation.

Figure 2-1 Air Gap Adjustment

Slide	Shim
Coil Assembly	(if necessary)
Rail	Air Gap (0.30 ±	0.005)

Magnet

Base

2-4 Installation & Operation MN1800