Items Supplied. HEIDENHAIN ND 522 - 2-2011, ND 523

II - 1 Installation, and Electrical

Connection

Items Supplied



ND 522/523 Display Unit



Power connector



Quick Reference Guide



Tilt / Swivel Assembly

Accessories



Mounting base



Assorted Mounting Arm assembilies

ND 522/523 Display Unit

Mounting Location

Locate the unit in a well ventilated area such that it may be easily accessed during normal operation.

Installation

A locking handle is used to secure the ND 522/523 from below on to a mounting arm. The DRO mounting assembly comes complete with

swivel / tilt Kit: See "ND 522/523 Handle ID 618025-01" on page 89.

Electrical connection

There are no serviceable items within this unit. Therefore, the ND 522/523 must never be opened.

The length of the power cord is not to exceed 3 meters.

Connect a protective ground to the protective conductor terminal on the rear of the unit. This connection must never be interrupted.

Do not engage, or disengage any connections while the unit is under power. Damage to internal components may result.

Use only original replacement fuses.

70

II Technical Information

Electrical requirements

Voltage AC 100 V ... 240 V (-15 % ... +10 %)

Power Max. 54 W

Frequency 47 Hz ... 63 Hz (±3 Hz)

FuseT 500 mA/250 V, 5 mm x 20 mm, Slo-Blo (line, and neutral fused)

Environmental

Protection (EN 60529) IP 40 back panel

IP 54 front panel

Operating temperature 0° to 45°C (32° to 113°F)

Storage temperature -20° to 70°C (-4° to 158°F)

Mechanical weight 2.6 kg (5.8 lb.)

Wiring the power connector

Hot leads: L, and N

Ground:

Minimum diameter of power connection cable: 0.75 mm

2

.

Protective earthing (grounding)

It is necessary to connect the protective ground terminal on the rear panel to the star point of machine ground.

Minimum cross-section of the connecting wire: 6 mm

2

.

Preventative maintenance

No special preventative maintenance is necessary. For cleaning, wipe lightly with a dry lint-free cloth.

ND 522/523

71

Connecting the Encoders

ND 522/523 can be used with HEIDENHAIN linear, and rotary encoders that provide digital TTL level signals.

The connecting cable must not exceed 30 m (100 ft.) in length.

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

6

7

4

5

Pin layout for encoder inputs.

D-sub connector

9-pin

1

2

3

8

9

/

Signal

U a1



U a2



0 V

U

P

U a0



The operator can setup any encoder input to go to any axis.

Default configuration:

Encoder input

X1

Mill

X

Turn

X

X2

X3

Y

Z

Z

0

Z

1

6

9

5

72

II Technical Information