HEIDENHAIN ACU-RITE SENC 125 T Bedienungsanleitung

SENC 125 T/E

REFERENCE MANUAL

ACU-RITE

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Page

Introduction ............................................................................. 2

Mounting Preparation .............................................................. 3

Mounting Information .............................................................. 4

Encoder Dimensions - SENC 125 T (top mount) .................... 5

Encoder Dimensions - SENC 125 E (end mount) ................... 6

Encoder Center Support (for SENC 125 E only) ........................ 7

Mounting Requirements ......................................................... 8

Typical Mounting (s) ............................................................... 9

Page

Encoder Installation Procedure ............................................. 10

Checking the Installation ........................................................ 13

Electrical Shielding ............................................................... 14

Troubleshooting .................................................................... 15

Mechanical Specications .................................................... 16

Output Signals and Pin-Outs .............................................. 17

Electrical Specications ........................................................ 18

Warranty .............................................................................. 19

SENC 125 T/E Table of Contents

Brackets ...

• Installation brackets and kits are available.

• Your authorized distributor can assist you in selecting brackets

for your installation.

Leveling

Blocks

Reading head

mounting

brackets

6” Vertical side

bracket

4” Extension

bracket

8” Vertical side bracket

Available in right or left

(shown) hand

ACU-RITE

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Introduction / Supplied Items SENC 125 T/E

For future ordering information or warranty service, record the

linear encoder catalog number located on the scale assembly tag,

and the serial number from the reading head tag.

Catalog No. Serial No.

Axis # 1: _______________ __________________

Axis # 2: _______________ __________________

Axis # 3: _______________ __________________

Axis # 4: _______________ __________________

Date of purchase: ____________________________________

Distributor: ____________________________________

Address: ____________________________________

Telephone: ____________________________________

The SENC 125 T and E Precision Glass Scale Linear Encoders

provides the accuracy and reliability of an ACU-RITE

®measuring

system.

Features include:

• Resolutions of 5µm.

• Accuracy Grade of ± 10µm/1000mm.

• Reference signals on 50mm intervals.

• Braided cables: 42”< encoders - 13 ft. length.

42”> encoders - 19 ft. length.

• Two scale case forms:

-SENC 125 T: Top mount scale; 2” - 120” measuring length

-SENC 125 E: End mount scale; 2” - 60” measuring length

• Mounting fasteners provided with scale.

• Mounting brackets available.

A • SENC 125 T or E linear encoder

B • Reference Manual

C • Encoder and Cable mounting hardware

Shipping carton contents

ACU-RITE

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Please follow these preparation guide lines.

• Understand your mounting requirements.

• Mount with lip seals down and away from the work area.

• Brackets should be kept as short and rigid as possible.

• Surfaces must be in good condition, clean, and free of dirt.

Remove paint from machined surfaces used for mounting.

• Alignment brackets must not be removed until instructed.

• Machine travel can not exceed the encoder measuring length.

• Either limit machine travel or use correct length scale.

• Never mount with lip seals upward or towards work area.

SENC 125 T/E Mounting Preparation

“L” = Measuring length

+ 1.75” nominal

over travel

2.0

[50.8]

2.4

[61]

2.4

[61]

2.0

[50.8]

“L” = Measuring length

+ 1.75” nominal

over travel

SENC 125 T

SENC 125 E

Cable direction

• Determine the cable exit direction before installing the encoder.

• To change the cable exit direction; remove the cover plate and

rotate the cable 180°.

T-10 Torx screw (2)

Plug

Cover plate

ACU-RITE

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Mounting Information SENC 125 T/E

Use this information to plan your Linear Encoder

installation.

• Mount the linear encoders close to machine guide ways to

ensure system accuracy.

• If space between the reading head and the mounting surface

exceeds .18”, use a mounting bracket or spacer to reduce

space.

• ACU-RITE

® bracket kit instructions provide step by step

installation procedures.

• Tolerances of .010” TIR apply to all mounting dimensions.

• Top mounted form X= 2.37”.

• End mounted form X= 1.90”.

• Clearance requirements for alignment bracket removal.

• Alignment brackets must not be removed until instructed. • Use reading head leveling set screws.

• Reading head bracket required for a space >.18”.

Offset

mounting

Move bracket past

the cable strain relief

Alignment bracket removal clearance

1.0

[25mm]

1.38

[35mm]

Alignment

bracket

Alignment

bracket

(SENC 125 E end mounting scale case shown for reference) SENC 125 T SENC 125 E

.005 - .180”

Max. Gap

.005 - .180”

Max. Gap

Underside of end

caps to be ush

with the parting line

Axis parting

line

Axis parting

line

// .010 A

-A- = Axis travel

Tolerances ...

ACU-RITE

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SENC 125 T/E Encoder Dimensions

Measuring length + 5.75 [146]

1.72 [43.7]

Mounting holes

for 10-32 SHCS

SENC 125 T

(top mounted scale case)

.07 [1.7]

.95 [24.1]

.28 [7.1]

2.0

[50.8]

Ø For 8-32

(or M4) SHCS

mounting

screw

1.25 [32]

Min. bend rad.

2.37

[60.2]

.71

[18]

.57 [14.5]

1.12 [28.6]

.56 [14.2]

.12 [3]

.37 [9.4]

2.0 [50.8]

.31 [7.9]

15.75

[400] Typ.

2.25

[57.1]

15.75

[400] Typ.

ACU-RITE

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SENC 125 E

(end mounted scale case)

.07 [1.7]

Measuring length + 6.55 [166.4]

Measuring length + 5.44 [138.1]

.56

[14.2]

.94 [24]

.37 [9.4]

Mounting hole Ø .453 C’bore Ø .313 Thru

2.25

[57.1]

.56 [14.2]

Ø For 8-32

(or M4) SHCS

mounting

screw

1.25 [32]

Min. bend rad.

.59 [14.9]

1.90

[48.3]

Mounting hole

.95

[24.1]

.57 [14.5]

.71 [18]

.12

[3] .31 [7.9]

1.12

[28.6]

.70

[17.8]

2.65

[67.3]

Encoder Dimensions SENC 125 T/E

Center Support

.96

[24.4]

.75

[19.0]

ACU-RITE

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SENC 125 T/E Encoder Center Support

ENC 125 E > 24” MUST USE CENTER SUPPORT(S) OR SPAR

Center Linear Encoder Distance

Support (s) Measuring Length Apart

Center Linear Encoder Distance

Support Measuring Length Apart

1 34 19.72

1 32 18.72

1 30 17.72

1 28 16.72

1 26 15.72

1 24 14.72

1 36 20.72 2 60 21.81

2 52 19.14

2 48 17.81

2 42 15.81

1 40 22.72

1 38 21.72

2 54 19.81

26.0”

[660 mm]

Max.

26.0”

[660 mm]

Max.

26.0”

[660 mm]

Max.

ACU-RITE

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Mounting options can be adapted to machine mounting surfaces

using spacers, standoffs, leveling set screws. A spar can be used

for the SENC 125 E encoder.

• Measuring length and mechanical conguration of your

machine determine your options.

• Fastener lengths described on this page are included with the

encoder or the backup spar.

• Mounting can be direct to the machine surface or with the aid of

leveling blocks or spacers. • For use with SENC 125 E scale case only (see page 7).

Mounting Requirements SENC 125 T/E

SENC 125 T

1/4-20 x 1/2” BHCS

& M6 Flat washer

Backup spar or center support mounting for SENC 125 E

encoders only

• Mounting can be direct to the machine surface or with the aid of

leveling blocks, spacers or back up spar.

M4 x 8mm SHSS

SENC 125 E

M5 Flat washer

10-32 x 1-1/4” SHCS

M3 x 8mm SHSS (3) 8-32 x 1” SHCS (2)

1/4-20 x 1/2” BHCS (2)

8-32 x 1” SHCS (2)

M3 x 8mm SHSS (3)

M6 Flat washer x .017” thk. (2)

Mounting hole cover (2)

Center Support

1/4-20 x 3/4” BHCS

1/4 Flat

washer

ACU-RITE

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