L-9517-9563-06-A_Data_sheet_ATOM_en.pdf - 第4页

4 A TOM miniature encoder system A T OM interface options A T OM readheads are av ailable in three versions all giving industry standard analogue output: • High e x cable ter minated with a 15-wa y D-type connector for …

3 ATOM miniature encoder system

• 20µm and 40µm readheads with high-ex cable:

For general purpose applications. Superior quality cable tested to 20million ex cycles.

• 20µm and 40µm readheads with FPC cable:

Side exit FPC cable allows the smallest overall package size.

• Stainless steel tape scale (RKLF):

Linear scale that can be wrapped around drums, arcsorshafts with radii down to26mm.

• Stainless steel tape scale (RTLF):

High-accuracy linear scale with graduations directly marked onto the steel tape surface. Available on reels for cut-to-suitexibility.

• Glass linear spars (RCLC):

Conventional glass spars, available in lengths up to 130mm.

• Glass discs (RCDM):

High-accuracy rotary scales with outer diameters down to17mm.

Product range

Stainless steel tape scale (RKLF)

Glass discs (RCDM)Stainless steel tape scale (RTLF)

20µm and 40µm readheads with FPC cable

4 ATOM miniature encoder system

ATOM interface options

ATOM readheads are available in three versions all giving industry standard analogue output:

• High ex cable terminated with a 15-way D-type connector for high-volume users requiring analogue outputs.

NOTE: A CAL button is not included on this option. Refer to the installation guide for details on how to calibrate.

• High-ex cable terminated with a T-type interboard connector for use with ACi / Ri / Ti interfaces.

• FPC connector for use with ACi interface or direct connection to user electronics.

Ti interfaces are designed for applications that require higher

speed, lower SDE, digital interpolation down to1nm resolution

and include a CAL button. Clocked outputs have been optimised

for speed and performance at all resolutions for industry-standard

controllers. Analogue variants are also available.

Ri interfaces are contained within an industry standard

15-wayD-type connector shell, including CAL button. Theyoffer

digital interpolation down to 50nm (clocked) and 0.5µm

(non-clocked). Analogue variants are also available.

ACi interfaces are a range of high performance, miniature,

open interpolator subsystems. They bring unparalleled

price-performance benets to today’s motion systems that need

ne resolution coupled to high speed performance in anultra

compact, open format, small footprint solution and have provision

for calibrating the system. Digital interpolation down to 10nm

at up to 40MHz clocked output is available. FPC or cable input

versions available.

5 ATOM miniature encoder system

ATOM readhead dimensions

Dimensions and tolerances in mm

No hole here on

FPC variant

6.45 (Cabled version)

5.4 (FPC version)

1.4 (40 µm version)

1.9 (20 µm version)

20.5

8.5

16.5

10.25

12.7

8.7

4.15

4.85

3 off mounting holes

Ø2.5 min through

Ø9 max

FPC cable

Set-up LED

Mounting face

Readhead

datum faces

5 min

Ø3.5 max

R > 20 Dynamic bend radius

R > 10 Static bend radius

4.4

Readhead / scale

orientation

Identication marks for readhead manufacture only.

Notches will vary depending on readhead type.

On FPC variants the set-up LED cut-out is circular.

Not optical centreline.