Catalogs >
GURLEY Precision Instruments >
LR18 Enclosed Linear Incremental Encoder

LR18 Enclosed Linear Incremental Encoder
1 / 5Pages

Catalog excerpts

LR18 Enclosed Linear Incremental Encoder - 1

Gurley Model LR18 Incremental Linear Encoder Motion Type: Linear Usage Grade: Industrial Output: Incremental Max Resolution: High Resolution - Industrial Ruggedness The Model LR18 Incremental Linear Encoder offers measuring lengths up to 2040mm and is accurate to ±3 µm/m. Gurley Precision Instruments 514 Fulton Street Troy, NY 12180 U.S.A. (800) 759-1844, (518) 272-6300, fax (518) 274-0336, Online at www.gurley.com, e-mail: info@gurley.com

Open the catalog to page 1

LR18 Enclosed Linear Incremental Encoder - 2

LR18 Cross-section Measuring length ML Overall length, mm Weight Operating temperature Sealing Grating Period Resolution, µm Accuracy (at 20°C) Input power Max speed Max acceleration Driving force Humidity (non-condensing) 18mm x 54mm 70mm - 2040mm ML + 105mm 0.4kg + 0.8kg/m 0° to 50°C IP64 with optional compressed air IP53 without compressed air 20µm 0.1µm, 0.2µm, 0.5µm, 1.0µm, 2.5µm, or 5.0µm Grade A: ±3 µm/m; Grade B: ±5 µm/m Grade C: ±10 µm/m 5V ± 5% @ 120 mA max (without load) 1 m/s 30 m/s2 ≤3.0 N 80% max As part of our continuing product improvement program, all specifications are...

Open the catalog to page 2

LR18 Enclosed Linear Incremental Encoder - 3

Specifications & Wiring INPUT POWER +5 VDC ±0.3 V @60mA max. SQUARE WAVE OUTPUT - OUTPUT CODE L On all channels: EIA/RS-422 balanced differential line driver, with short circuit protection, may be used single-ended for TTL-compatible inputs. Index is ¼-cycle wide, gated with the high states of channels A and B. CHANNEL A CHANNEL / A CHANNEL B CHANNEL / B 1/4-cycle gated INDEX / INDEX SQUARE WAVE OUTPUT WIRING Square waves OUT = L A /A B /B IND / IND +V COMMON CASE Wire Colors Conn. Code P Green Yellow Pink Red Brown Gray Black White Bare (shield) Gurley Precision Instruments 514 Fulton...

Open the catalog to page 3

LR18 Enclosed Linear Incremental Encoder - 4

Outline Dimensions & Cable Information DISTANCE-CODED REFERENCE MARKS The LR18 encoders include an index signal, which can be located anywhere along the measuring length; its position is specified at the time of order. Once the encoder is installed, the index becomes fixed with respect to the user's machine. This feature allows the user to return to a known starting point. Since the index signal occurs only once, it may take a while to find. One way to decrease the homing time is with DISTANCECODED REFERENCE MARKS (DCRM). Instead of being at a single location, many index marks are placed...

Open the catalog to page 4

LR18 Enclosed Linear Incremental Encoder - 5

Ordering Information MODEL TYPE CABLE CONN 1 Meter 2 Meters 3 Meters CONN OUT - Output format RS 422 ML - Measuring Length* xxxx CABLE - xxx Cable length, inches Cable exits to the right IND - Index location xxxx Distance from left end of scale housing to left side of read head, mm 0000 None required 9999 Distance-coded reference marks SPEC - Special Code # Issued at the time of order to cover special customer requirements N No special features ACCESSORIES (order separately) M06 Mating connector for DE-9P *Available measuring lengths (mm): 70; 120; 170; 220; 270; 320; 370; 420; 470; 520;...

Open the catalog to page 5