Linear encoders for numerically controlled machine tools

Linear encoders from HEIDENHAIN for numerically controlled machine tools can be used nearly everywhere. They are ideal for machines and other equipment whose feed axes are in a servo loop, such as milling machines, machining centers, boring machines, lathes and grinding machines. The beneficial dynamic behavior of the linear encoders, their high permissible traversing speed, and their acceleration in the direction of measurement predestine them for use on highly-dynamic conventional axes as well as on direct drives.

Linear encoders with slimline scale housing

The linear encoders with slimline scale housing are designed for limited installation space. Larger measuring lengths and higher acceleration loads are made possible by using mounting spars or clamping elements.

	Accuracy grade	Incremental signals; Signal period	Absolute position values	Model
Absolute Linear Encoders for Safety-Related Applications	±5 μm ±3 μm	-	EnDat 2.2/22 DQ 01	LC 415 LC 495 S
Absolute position measurement • Glass scale	±5 μm ±3 μm	- 1 Vpp; 20 μm	EnDat 2.2/22 EnDat 2.2/02 DQ 01 Fanuc 05 Mit 03-04	LC 415 LC 485 LC 495 S LC 495 F LC 495 M
Incremental linear measurement with very high repeatability • Steel scale • Small signal period	±5 μm ±3 μm	1 V_pp; 4 μm	-	LF 485
Incremental linear measurement • Glass scale	±5 μm ±3 μm	1 V_pp; 20 μm TTL; to 1 μm	- -	LS 487 LS 477

Linear encoders with full-size scale housing

The linear encoders with full-size scale housing are characterized by their sturdy construction, high resistance to vibration and large measuring lengths. The scanning carriage is connected with the mounting block over an oblique blade that permits mounting both in upright and reclining positions with the same protection rating.

	Accuracy grade	Incremental signals; Signal period	Absolute position values	Model
Absolute Linear Encoders for Safety-Related Applications	±5 μm ±3 μm	-	EnDat 2.2/22 DQ 01	LC 115 LC 195 S
Absolute position measurement • Glass scale	±5 μm ±3 μm	- 1 Vpp; 20μm	EnDat 2.2/22 EnDat 2.2/02 DQ 01 Fanuc 05 Mit 03-04	LC 115 LC 185 LC 195 S LC 195 F LC 195 M
Absolute position measurement for large measuring lengths • Steel scale tape	±5 μm	- 1 V_pp; 40 μm	EnDat 2.2/22 EnDat 2.2/02	LC 201 - single-section LC 201 parts kit LC 201 scanning unit
Incremental linear measurement with very high repeatability • Steel scale • Small signal period	±3 μm ±2 μm	1 V_pp; 4 μm	-	LF 185
Incremental linear measurement • Glass scale	±5 μm ±3 μm	1 V_pp; 20 μm TTL; to 1 μm	- -	LS 187 LS 177
Incremental linear measurement for large measuring lengths • Steel scale tape	±5 μm	1 V_pp; 40 μm	-	LB 382 - single-section LB 382 parts kit LB 382 scanning unit