SR74/75Magnescale

Features
Specifications
Dimensions
Manual
Catalog

Features

This slim type magnetic scale system that outputs position signals for machine tools and other equipment that require high-precision positioning.

Maximum resolution : 0.01 μm(SR75:Mitsubishi Electric)、0.05μm(SR74)
Accuracy(at 20°C) : (3+3L/1,000)μｍp-p or (5+5L/1,000)μｍp-p
Measuring Length(ML) : 70-2,040mm
Maximum response speed : 200m/min(SR75), 50m/ min (SR74: Resolution: 0.1 μm, Minimum phase difference : at 50 ns)
Protocol (SR75) : Mitsubishi Electric, Panasonic, Yaskawa Electric
Output signal (SR74) : A/B/Reference point line driver signal, compliant with EIA-422
- 　　　　　　(SR75) : Incremental serial bidirectional signal, compliant with EIA-485

Specifications

Specifications
Magnescale reserves the right to change product specifications without prior notice.
Model	SR74	SR75
Measuring length(L)	70～2040mm(26types) 70, 120, 170, 220, 270, 320, 370, 420, 470, 520, 570, 620, 720, 770, 820, 920, 1020, 1140, 1240, 1340, 1440, 1540, 1640, 1740, 1840, 2040mm
Thermal expansion coefficient	12±1 × 10^-6/ ℃
Output signal	A/B/Reference point line driver signal, compliant with EIA-422	Incremental serial bidirectional signal, compliant with EIA-485
Accuracy(20℃)	(3+3L/1,000)μm p-p or (5+5L/1,000)μm p-p L:Measuring length(mm)
Resolution	Selectable from 0.05, 0.1, 0.5 and 1 μm(Set at factory shipping)	0.01/Selectable from 0.05, 0.1, 0.5 and 1 μm(Set at factory shipping)
Reference point position	None, Center point, Multi-point (40 mm pitch), Reference mark (standard pitch: 20 mm), User-selected point (1 mm pitch)	None, Center point, User-selected point (1 mm pitch)
Power supply voltage	DC4.75-5.25V(At cable connection end)
Consumption current	200mA(at 120 Ω terminal)or less
Inrush current	2A or less(When the power supply rise time is 10 ms:10ms)
Maximum response speed	50m/min(Resolution: 0.1 um, Minimum phase difference: at 50 ns)	200m/min(User-selected resolution setting)
Vibration resistance	150m/s²(50Hz～3kHz)
Impact resistance	350m/s²(11ms)
Protective design grade	IP54 (Air purge not included), IP65 (Air purge included)
Other protections	Oil lubricant can also be used under severe environmental conditions.
Power supply protection	In the case of errors such as a reverse-connected power supply or over-voltage, the internal fuse is cut to protect the power being supplied and wiring.
Safety standards	FCC Part15 Subpart B Class A. ICES-003 Class A Digital Device. EN55011 Gp1 Class A, EN61000-6-2. Safety standards not applicable (60 V DC or less).
Operating temperature	0 ～+50℃
Storage temperature	-20 ～+55℃
Mass	Approx. 0.27kg + 1.36kg/m or less
Slider sliding resistance	1N or less

Dimensions

Product name		2D		3D
SR74/75	007	007L	007R	007L	007R
SR74/75	012	012L	012R	012L	012R
SR74/75	017	017L	017R	017L	017R
SR74/75	022	022L	022R	022L	022R
SR74/75	027	027L	027R	027L	027R
SR74/75	032	032L	032R	032L	032R
SR74/75	037	037L	037R	037L	037R
SR74/75	042	042L	042R	042L	042R
SR74/75	047	047L	047R	047L	047R
SR74/75	052	052L	052R	052L	052R
SR74/75	057	057L	057R	057L	057R
SR74/75	062	062L	062R	062L	062R
SR74/75	072	072L	072R	072L	072R
SR74/75	077	077L	077R	077L	077R
SR74/75	082	082L	082R	082L	082R
SR74/75	092	092L	092R	092L	092R
SR74/75	102	102L	102R	102L	102R
SR74/75	114	114L	114R	114L	114R
SR74/75	124	124L	124R	124L	124R
SR74/75	134	134L	134R	134L	134R
SR74/75	144	144L	144R	144L	144R
SR74/75	154	154L	154R	154L	154R
SR74/75	164	164L	164R	164L	164R
SR74/75	174	174L	174R	174L	174R
SR74/75	184	184L	184R	184L	184R
SR74/75	204	204L	204R	204L	204R