HEIDENHAIN ND 220 Bedienungsanleitung

HEIDENHAIN

Working with the position ~’

display.unit ‘, ND

220

,:’

- Confirm entry value

Actual value and input display * Select datum

Set display to value from

P79 lP80!)

~7-segment LED,

Page backward in

9 decades and sign1 parameter list

Nuryric keypad

Status display

* aear entry * Algebraic sign

Reset to zero ,P80!,

Decrease pa-

. CL pIus MOD: rameter value

* Go to parameter list after switch-on

* Page forward in parameter Iist parameter list

. CL plus 2-digit number:

select parameter

* Decimal point

Clear parameter entry * Increase pc

and show parameter iamete‘“al”e

number

Indicator

REF

Meaning

If decimal points are blinking:

Display is waiting for the reference mark to be crossed over.

If decimal points are not blinking:

Reference mark was crossed over-datum points are now

stored in nonvolatile memory

Blinking:

Waiting for operator to press ENT or CL.

in.

Position values displayed in inches.

Cl / c2 Datum 1 I Datum 2 currently active.

SET Blinking:

Waiting for operator to confirm entry values.

The ND 220 is designed primarily for use with HEIDENHAIN linear encoders, such as

the LS 303 or LS 603.

HEIDENHAIN linear encoders feature one or several reference marks, which may also

be distance-coded. When a reference mark is crossed over, it generates a signal

identifying that position as a reference point. After switch-on, simply crossing over

the reference mark re-establishes the relationship between axis positions and display

values as it was last defined by datum setting.

With distance-coded reference marks, a maximum traverse of only 20 mm after

switch-on suffices to re-establish the datum.

Switch-On

‘pi-j

Turn on power (switch located on rear panel)

Display shows -1.

REF blinks.

\ Ere...CL

Switch on reference mark evaluation

The display shows the value last assigned to the

reference mark position.

REF indicator glows.

\ 5,697

Decimal point blinks.

Cross over reference mark

Move the axis until the display becomes active and the decimal

0 point no longer blinks.

If you do

not

wish reference mark evaluation, press CL instead of ENT.

Setting the Da&n

The datum setting procedure assigns a display value to a specific axis position.

The ND 220 allows you to set two independent datum points.

Select datum 1 012.

- I

Immi

Enter a value, such as 40

40 - J

You can switch between datums at any time. Use datum 2 when you want to display

incremental dimensions.

Distance-To-Go Mode

The standard setting for the display unit is to show the encoder position value.

Particularly on machine tools and for tasks in automation, however, it can be very

helpful for the display to instead show the distance remaining to a manually entered

nominal position. You can then position the tool by simply moving the axis to the

display value zero. Code number 246 562 provides access to distance-to-go mode.

Disolav Meanino

“Traverse to zero” with distance-to-go display

l Select datum 2.

l Enter the nominal position.

N Move the axis to zero.

Operating parameters

The parameters are divided into “user parameters” and “protected operating param-

eters,” which can only be accessed by entering a code number.

User parameters

User parameters are operating parameters that you can change without entering the

code number: They are designated PO0 to P30, and P79

Calling u*er parameters

To call user parameters immediately after switch-on:

l Press the MOD key as long as m is visible in the display.

To call user parameters during operation:

l Press and hold the CL key, then press MOD.

To go directly to a specific user parameter:

W Press and hold the CL key, then press the first digit of the parameter number.

l Release both keys and press the second digit.

Protected operating parameters

Before you can change protected o crating parameters you must enter the code

;;;t.ez.e,~ l4U;;ugh tii : They remain accessible until you switch off

To page through the parameter list

l Forward paging: Press the MOD key.

k Backward paging: Press the 41 iA2 key.

By paging on, you automatically enter any change you’ve made in,a parameter.

To change operating parameters

l Increase the parameter value with the decimal point key, or

l Decrease the parameter value with the minus key, or

F Enter the numerical value for the operating parameter, e.g. for P41 ( w blinks).

To correct your entries and show the paramefer designation

F Press the CL key.

To exit the operating parameters

l Press ENT. All changes made become effective

Operating Parameter List

Parameter Meaning Function I Effect Setting

:-‘c:c: C!M Enter code number 95 148 to access the protected operating

pWSTK?tC?~S

;I,;:; ; XT% Unit of Display in millimeters

meae”rement Display in inches

,?I- d ::- Counting Normal (Posih4

Direction direction Inverse (Negahvei

p :;;, S;:b,:: Subdivision of the encoder signals

Subdivision 4, 2, 1, 0.8, 0.5, 0.4, 0.2, 0.1

j-8-f-j

I 3EP Counting 0~1~2-3-4-5-6-7-8-9-0

mode 0-2-4-6-8-O ZJ

O-5-0 ‘5

mm display only: 0 25 50 75 0 ,&

inch display only: 0 10 20 30 ,,-,

,,.,

,L’:;;~; ,-;;zr~,~ Decimal places 1 / 2 / 3 / 4 / 5 / 6 iup to 8 with inch display)

Decimalpoint

pc; ; ZT? Linear error compensation” - 99 999 < P41 < + 93 933 [pm/ml

Comoensation As of hardware version .l-: - 93 993.3 < P41 < + 93 933.3 lum/ml

marks

p-;

;-:,c Reference mark

evaluation

;I,“~, ,>: :;-,I: Encoder

Encoder monitoring

81 :yss:, Display after

,.,,.

Message switch-on

One reference mark

Distance-coded with 500 * GP

(GP = grating period)

Distance-coded with 1000 * GP lC,ULl

(e.g. for LS 303 C / LS 603 Ci

Distance-coded with 2000 * GP c ,.,,.,,.,

Evaluation ;-;z,c ;I;;-;

No evaluation ;-,y fmj,L-

No monitoring (Alarm Offi ;I;;-;I;;: ;:;;I;I

Contamination ;:;; ;q;y ,-

Frequency / ,,.,-,, k

0, n,- -

Contamination and Frequency ;I;;-‘1;;; ;I;:

Enter a numerical value for the datum -

Confirm your entn/ with ENT

No preset with ENT

Zero reset with CL and

preset with ENT to value in P73

* Determine entry value for P41

Example: Displayed measuring length La = 620.000 mm

Actual length (determined with, for example, the VM 101

comparator system from HEIDENHAIN) it = 619.876 mm

Length difference AL = it- La = -124 pm

Paramater Settings for HEIDENH&N Linear Encoders

The following settings

acinlv for mm:

Model

~,~,~, ~~~

Display step Sub- Count. Decimal

Illnit: POW division mode places

P43 ,mnl inches P32 P33 p38

LS 303 20 one single 0.005 0.0002 4 5 3

LS 603 dist.c. 1 000 0.01 0.000 5 2 1 2

LB 3xx 100 one single 0.025 0.001 4 25

Example: Linear encoder with signal period s = 20 pm

Desired display step a = 0.005 mm

Subdivision P32 = 0.001 * s I a = 4; Counting mode P33 = 5

Places after decimal point of a: P38 = 3

Error Messages

To clear an error message m :

When you have removed the cause of the error,

press CL.

Message Cause and effect

c ,- ,-i-s,-

i / / L” :;: Incorrect input value

c ,- ,-i-,7 ,Ii-, Encoder signal too weak (encoder may be contaminated)

c ,- /-i-f,- ,!, J Input frequency ten high for encoder input (will occur for example

when the scale is moved too quickly)

Internal counter overflow

i I fL// -/ -/

Error while crossing over reference marks

:-: (I ;x;‘:;’

t-s/ To clear the error message: Switch off the display unit.

i I tL// L/2 Should any of these error codes recur, contact your HEIDENHAIN

Selvlce agency.

- /-;-;;‘;r ;3;

- ,- ,-,-,,-

;I, tL,/ ,:::; Check the operating parameters. Should this error code continue

to appear, contact your HEIDENHAIN service agency.

If all decimal points light up, the measured value is too large or too small.

In this case, set a new datum or retract.

Rear Panel

Power switch

Ground terminal Input for HEIDENHAIN linear encoder with

sinusoidal output signals i7pApp to 16 pAppI,

connecting cable mm 3’0 m (98.5 ftl, maxi-

mum permIssIbIe input frequency 50 ktiz

InterfaceXl complies with the recommendations VDE 0160, 5.88 for

separation from line power.

Installation

You can fix the display unit to a flat surface with M4 bolts

(see illustration at right).

The units can also be stacked. Adhesive inserts (included

in delivery) prevent them from sliding.

Power Supply and Connection

Dengar~of electrical shock!

Unplug the powwcord before opaning the housing.

Connect a protective ground. This connection must never be interrupted.

A Danger to internal componentsl

Do not engage or disengage any connections while the unit is under power.

Use only original replacement fuses.

Primary-clocked power supply, tolerates overvoltage in accordance with VDE 0160,

5.88. Overvoltage tolerance class 2.

Voltage range: 100 V to 240 V (- 15% to + 10%) Frequency: 48 Hz IO 62 Hz

Power consumption typ. 8 W Line fuse: F 1 A (in unit).

Minimum cross section of power line: 0.75 mm2

To increase noise immunity, connect the ground terminal on the rear panel to

the central ground point of the machine. (Minimum cross section 6 rnrn2)

Ambient Conditions

Temperature range Operation: 0” C to + 45” C 132” F to 113” Fl

Storage: -30” C to + 70” C (-22” F to 158” Fi

Rel. humidity Annual average: < 75%; maximum: < 90%

Weight 1.5 ka

DR. JOHANNES HEIDENHAIN GmbH

Dr.Johannes-Heidenhain-StraRe 5

D-83301 Traunreut, Deutschland

‘ST (086691 31-O

Ed(O86691 5061

5B Service (08669,31-,272

?B TNC-Service WE6691 31-1446

WC086691 9899

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