Baumer GA240 Assembly Instructions - Page 2

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Assembly Instructions

GA240, GA241

GE244

Absolute Encoder - SSI

Terminal assignment

Connector

Core colour

Assignment

Pin 1

brown

Pin 2

black

GND

Pin 3

blue

Clock+

Pin 4

beige

Data+

Pin 5

green

Zero setting

Pin 6

yellow

Data-

Pin 7

violet

Clock-

Pin 8

brown/yellow

DATAVALID / UBminOK

Pin 9

pink

V/R

Pin 10

black/yellow

–

Pin 11-12

–

With incremental tracks

Connector

Core colour

Assignment

Pin 1

brown

Pin 2

white

GND

Pin 3

blue

Clock+

Pin 4

green

Data+

Pin 5

grey

Zero setting

Pin 6

yellow

Data-

Pin 7

red

Clock-

Pin 8

red/blue

Track B inv.

Pin 9

pink

UP/ DOWN

Pin 10

violet

Track A inv.

Pin 11

black

Track A

Pin 12

grey/pink

Track B

Please use cores twisted in pairs (for example clock+/

clock-) for extension cables of more than 10 m length.

Danger

Warnings of possible danger.

General instructions

Information on appropriate product handling.

General remarks

Additional information

The assembly instruction is supplementary to further

existing documentation (e.g. catalog, data sheet, manual).

It is imperative to read the manual carefully prior to star-

9-16

ting the device.

Appropriate use

- The encoder is a precision measuring device. It is expli-

citly designed for registration of angular positions and

revolutions as well as evaluation and supply of measu-

ring values as electric output signals for the subsequent-

ly connected device. The encoder must not be used for

any other purpose.

Start up

- Installation and assembly of the encoder only by electri-

cally skilled and qualified personnel.

- Consider also the operation manual of the machine

manufacturer.

Safety instructions

- All electrical connections are to be revised prior to star-

ting the system.

- Incorrect assembly and electrical connections or any

other inappropriate work at encoder and system may

lead to malfunction or failure of the encoder.

- Any risk of personal injury, damage of the system or

company equipment due to failure or malfunction of the

encoder has to be eliminated by corresponding safety

measures.

- Do not operate encoder beyond the limit values stated

in the data sheet.

Any disregard may lead to malfunctions, material damage

and personal injury.

Dimensions

Clamping flange

Synchro flange

±0.1

M4x7 (3x120°)

Disposal

Encoder components are to be disposed of according to

the regulations prevailing in the respective country.

Transport and storing

- In original packing only.

- Do not drop or expose encoder to major shocks.

Assembly

- Avoid punches or shocks on case and shaft.

- Avoid case distortion.

- Do not use any rigid links between encoder shaft and

drive shaft.

- Do not open or modify encoder in any mechanical way.

Shaft, bearing, glass disc or electronic componen-

ts might be damaged and a secure operation is no

longer guaranteed.

Mechanical assembly

Fixing bore

- Mount encoder using three screws using the three fixing

Eccentric

bores of the flange. Consider the depth and diameter of

fixing

the thread.

- Alternative mounting in any angular position is possible

by means of three eccentric fixings (accessories).

- Use appropriate coupling to link drive shaft and encoder

shaft. For appropriate links please refer to accessories.

The ends of the shafts must not touch each other.

Any displacements due to temperature or mecha-

nical tolerances have to be equalized by the cou-

pling. Mind the maximum permitted axial or radial

shaft load. Tighten fixing screws firmly.

Electrical installation

- Do not modify encoder in any electrical way and carry

out any wiring work under power supply.

- Any electrical connection and plugging-on whilst under

power supply is not permitted.

- A separate encoder supply has to be provided with con-

sumers with high interference emission.

- Encoder case and supply cable have to be completely

screened.

- Installation of the whole system has to be according to

EMC standards. Installation environment as well as wi-

ring have an impact on the encoder's EMC.

Connector dimensions

- Encoder and supplying lines are to be in separated lo-

cations or remote from lines with high interference emis-

sion (frequency transformers, protections, etc.).

- Ground (PE) encoder by using screened cables. The

braided shield has to be connected to cable gland or

plug. Grounding (PE) on both sides is recommended.

Ground the case by the mechanical assembly, if latter

is electrically isolated a second connection has to be

provided. Ground cable screen by the subsequently

connected devices. In case of ground loop problems at

least grounding on one side is imperative.

Any disregard may lead to malfunctions, material damage

and personal injury.

Electrical connection

Any outputs not used must not be connected. Unused

cable cores have to be isolated. Max. bending radius

of cables 90 mm. After the reset process the zero input

should be grounded (GND) externally for better protection

against interferences.

Connection – M23 connector

Whilst not connected, the connector is always to be

sealed by the plastic cover provided by the manufacturer

upon delivery. Appropriate mating connectors available

as spare part or with different cable length, please refer

to accessories. In case of customer-specific length use

only screened cable and connectors corresponding to

EMC standards. Consider the wiring instructions of the

respective supplier.

- Press mating connector softly onto the connector.

- Turn mating connector carefully until the code-mark is

interlocking the corresponding space provided by the

connector.

- Insert bushing completely and tighten the nut as far as

possible.

An optimized connection between encoder case and the

braided shield of the connection cable is only achieved by

the braided shield being placed generously onto the con-

nector and the nut being secured firmly