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Renishaw linear magnetic encoder/Renishaw magnetic scale

Product Description

SKU: _P003469803
Category: RLS encoder, RLS magnetic scale

Renishaw was founded in 1973, primarily providing core technology products for measurement, motion control, medical, spectroscopy, and manufacturing.

Renishaw linear magnetic encoder/Renishaw magnetic scale LM13 is a non-contact, high-speed linear magnetic encoder system suitable for harsh environments.

This linear magnetic encoder system includes a compact readhead and a self-adhesive magnetic scale.

The linear magnetic encoder LM13 is simple to install, featuring a built-in LED installation indicator on the readhead, wide installation tolerances, and provides installation tools for mounting the self-adhesive magnetic scale. The bidirectional reference zero can be set to a preset zero embedded in the magnetic scale, or to a reference zero applied onto the magnetic scale using an auto-aligning installation tool.

This linear magnetic encoder features digital output signals and offers a range of user-selectable resolutions: 1 µm, 2 µm, 4 µm, 5 µm, 10 µm, 20 µm, 25 µm, 50 µm, 125 µm, and 250 µm. LM13 speed up to 25 m/s; even at a resolution of 1 µm, the speed can reach 4 m/s.

Due to its compact and lightweight size and internal construction, LM13 is also suitable for arc applications. The self-adhesive magnetic scale can be installed on surfaces with a minimum radius of 60 mm.

The LM13 linear magnetic encoder is designed for extremely harsh environments, with an operating temperature range of -10°C to +80°C, a waterproof sealing rating of IP68, and strong resistance to shock, vibration, and pressure. The robust magnetic scale also resists contamination from various common industrial chemicals. The non-contact design eliminates wear and reduces hysteresis, ensuring high-precision measurement at high speeds and accelerations.

Renishaw linear magnetic encoder/Renishaw magnetic scale LM13 application environments: Suitable for use in extremely harsh application environments, including woodworking, stone cutting, sawing, metal cutting, textiles, packaging, plastics processing, automation and assembly systems, laser/flame/water jet cutting, and electronic assembly equipment.

Renishaw linear magnetic encoder/Renishaw magnetic scale parameters are as follows:

Maximum measuring distance of MS magnetic scale				50 m (special orders available for 100 m)
Pole pitch				2 mm
Available resolutions				Analog voltage output: 20m/s (for special options, 20 speed is 80m/s) Digital output signal:

Order number	Resolution	Pulses/	Maximum speed (special options 20 and above)
Order number	(µm)	2 mm	(m/s)
13B	≈ 0.244	8,192	1.82	0.91	0.23	0.11	0.06	0.03	0.02	0.01	0.01
12B	≈ 0.488	4,096	3.65	1.82	0.46	0.23	0.12	0.06	0.05	0.02	0.01
11B	≈ 0.976	2,048	7.3	3.65	0.91	0.46	0.24	0.12	0.1	0.05	0.02
2D0	1	2,000	7.47	3.73	0.93	0.47	0.24	0.12	0.1	0.05	0.02
1D6	1.25	1,600	9.33	4.67	1.17	0.58	0.3	0.16	0.12	0.06	0.03
10B	≈ 1.953	1,024	14.58	7.3	1.82	0.91	0.48	0.24	0.19	0.1	0.05
1D0	2	1,000	14.93	7.47	1.87	0.93	0.49	0.25	0.2	0.1	0.05
D80	2.5	800	18.67	9.33	2.34	1.17	0.61	0.31	0.25	0.12	0.06
09B	≈ 3.906	512	20 / 29.17	14.58	3.65	1.82	0.95	0.49	0.38	0.19	0.1
D50	4	500	20 / 29.87	14.93	3.73	1.87	0.97	0.5	0.39	0.2	0.1
D40	5	400	20 / 37.33	18.67	4.67	2.34	1.22	0.62	0.49	0.25	0.12
D32	6.25	320	20 / 46.67	20 / 23.33	5.84	2.91	1.52	0.78	0.61	0.31	0.16
08B	≈ 7.812	256	20 / 58.34	20 / 29.17	7.3	3.65	1.9	0.97	0.77	0.39	0.19
D20	10	200	20 / 74.67	20 / 37.33	9.33	4.67	2.43	1.24	0.98	0.5	0.25
D16	12.5	160	20 / 46.67	20 / 23.33	5.84	2.91	1.52	0.78	0.61	0.31	0.16
07B	15.625	128	20 / 80	20 / 58.34	14.58	7.3	3.81	1.94	1.53	0.77	0.39
D10	20	100	20 / 74.67	20 / 37.33	9.33	4.67	2.43	1.24	0.98	0.5	0.25
D08	25	80	20 / 46.67	20 / 23.33	5.84	2.91	1.52	0.78	0.61	0.31	0.16
06B	31.25	64	20 / 80	20 / 80	20 / 29.17	14.58	7.62	3.89	3.07	1.55	0.78
D04	50	40	20 / 46.67	20 / 23.33	5.84	2.91	1.52	0.78	0.61	0.31	0.16
05B	62.5	32	20 / 80	20 / 80	20 / 58.34	20 / 29.17	15.22	7.78	6.14	3.1	1.56
04B	125	16	n/a	20 / 80	20 / 80	20 / 58.34	20 / 30.43	15.56	12.28	6.19	3.11
03B	250	8	n/a	n/a	20 / 80	20 / 80	20 / 60.86	20 / 31.11	20 / 24.56	12.39	6.23
Minimum edge separation (μs)			0.07	0.13	0.5	1	2	4	5	10	20
Maximum count frequency (MHz)			15	8	2	1	0.5	0.25	0.2	0.1	0.05
Order number			K	A	B	C	D	E	F	G	H
Accuracy grade				±20 µm/m and ±40 µm/m
Linear expansion coefficient of the MS magnetic scale				~ 17 × 10-6/K
Repeatability				Better than one unit of resolution
Hysteresis				*Maximum air gap < 4 µm at 0.5 mm
LM13IC – Digital output signal
Output signal				3 square wave signals A, B, Z and their inverted signals A-, B-, Z-
Reference signal				1 or more square wave pulses Z and its inverted pulse Z-
Signal level				Differential line driver compliant with EIA standard RS422:
				At -IH = 20 mA, UH ≥ 2.5 V
				At IL = 20 mA, UL ≤ 0.5 V
Permissible load				Between related outputs Z0 ≥ 100 Ω
				Maximum load per output IL ≤ 20 mA
				Capacitive load ≤ 1000pF
				Output short-circuit protection 0 V to +5 V
Alarm				Output lines A, B, A-, B- high impedance
				Special option 02: No alarm in high-impedance state
				Special option 07: Alarm signal output in parallel as line driver signal
Switching time (10 to 90%)				t+, t- < 30 ns (1 m cable and recommended input circuit)
Cable length				Max. 100 m (please consider voltage drop on the cable)
LM13AV – incremental analog output signal (1 Vpp)
Output signal				V1, V2, V0
Sine/cosine signals				Amplitude (with 120 Ω termination resistor)				0.6 Vpp to 1.2 Vpp
				Phase shift				90° ± 0.5°
Reference signal				Amplitude (with 120 Ω termination resistor)				0.8 Vpp to 1.2 Vpp
				Position				45°
				Width				AV output: 22.5°
								AS output: 360° ± 180°
Termination resistor				Between associated outputs Z0 = 120 Ω
Cable length				Max. 50 m (please consider voltage drop on the cable)

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