Baldor iMN1800 manual Lmbr Series Brush DC Linear Servo Motor

LMBR Series Brush DC Linear Servo Motor

Mounting	The motor primary must be aligned (parallel) to the equipment guide ways within 0.005″
	(0.127mm) on each end. Use gauge blocks and shims as necessary. Precise parallel
	alignment of the motor to the equipment guideways is required. Align the stationary half
	of the motor to the guideways. Then align the moving half with the stationary half.
	When securing the primary to the equipment base do not allow the screws to penetrate
	the motor more than .25″ deep (to prevent damage to the motor windings).
	To mount the motor secondary, slide the table over the secondary and align the mounting
	holes. The secondary is to be secured to the moving table with screws after the proper
	amount of shims are added to maintain an air gap of .015″ min. to .020″ max. (unless
	otherwise specified) between the secondary and the primary. This is achieved by
	ensuring that the plastic shim provided does not bind anywhere over the length of the
	primary when moving the table top with secondary back and forth by hand.
	The plastic shim between the primary and the secondary can now be removed. Be sure
	that the secondary is centered and runs parallel to the commutator to within .005″ at each
	end.
Electrical Check:	With an ohmmeter across input terminals, verify that the resistance reading does not drop
	to zero when the secondary / commutator assembly is moved over the entire length of the
	stationary primary. If a zero reading is observed, inspect the connections between the
	commutator brushes and the power input wires. In addition, inspect the connections
	between the motor windings and the commutator bar.
Motor Removal:	Insert the plastic shim between the primary and secondary to maintain the air gap. First,
	disconnect the power input wires. Next, remove the screws between the secondary and
	the moving table as this allows the secondary to sit on the primary. Then remove the
	mounting screws between the primary and the base. Finally, the complete motor
	assembly can be removed and placed on a level, flat surface.
Secondary Removal:	If just the secondary must be removed,slide the table with the secondary attached, to one
	end of the primary. Insert a .015″ minimum plastic shim between the secondary and the
	primary to maintain the air gap. Remove the screws between the secondary and the
	sliding table. Move the table out of the way and slide the secondary out using extreme
	caution so as to not damage the brushes. If brushes are worn out, contact Northern
	Magnetics for replacement.

Secondary Reinstallation: Place .015″ minimum plastic shim on primary face. Next place .015″ min fiberglass shims on the brush assembly and completely depress the brushes into their holders. With the brushes toward the commutator bars, slide the secondary onto the primary face (with the shim in place). When the secondary is in place, gently remove the shim from between the brushes and commutator bars.

Note: Ensure that the shim between commutator and brushes has rounded ends and that they do not cut the leads to the commutator bars.

Refer to “Mounting” instructions to reinstall.

Brush Motor Connections: – Black / Red (+)

White (–)

MN1800 Installation & Operation 2-3