Baumer GI357 Benutzerhandbuch

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Danger

Warnings of possible danger.

General instructions

Information on appropriate product handling.

General remarks

Additional information

The installation instruction is supplementary to already

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

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

ting the device.

Appropriate use

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

plicitly designed for registration of angular positions

and revolutions as well as evaluation and supply of

measuring values as electric output signals for the sub-

sequently 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.

- The encoder‘s behaviour in case of an error must be

considered and implemented by the system integrator.

- 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.

- SIL2 Certification (examined according to DIN EN61508)

- Do not operate encoder beyond the limit values stated

in the data sheet.

- In case of error

During power-on all encoder outputs are in high impe-

dance state for a period of approx. 150 ms. After that,

outputs switch according to specification.

- Replace encoder with same type of encoder only. Bin-

ding is the 12-digit part no. „GI357.xxxxxxx“ on the type

plate (xxxxxxx depends on encoder model).

The safety function in the master PLC must detect the

following events in order to uncover dangerous errors

and, in case of error, actuate appropriate safety precau-

tions.

- Non-equivalence Monitoring

The non-inverted and inverted signal lines of each safety

track (A vs. A and B vs. B) must have non-equivalent

signal levels at all times. In state transition, very short

periods of time (some microseconds) are permissible

in which both lines have same logical signal level. A

dangerous error occurs when this short period of time

is exceeded.

- Line break detection

None of the connected signal lines A, A, B, B may be

in high impedance state. The encoder reveals any self-

detected error state by a high impedance state of the

output lines A, A, B, B as well.

- Safe rotational speed

The master PLC expects at a given rotational speed on

both safety tracks a specific, on both tracks identical,

non-zero frequency. A dangerous error occurs if at least

one of these conditions is not true.

- Safe rotational direction

The phase shift of the safety relevant incremental

signals A vs. B and A vs. B has to be monitored. A

dangerous error occurs when exceeding the given tole-

rances. Compliance to the defined rotational direction

has to be monitored as well.

- Safe stop

In case of missing state changes in at least one of the

signals A, A, B, B, the customer has to ensure shaft

standstill by means of a second, independent safety

precaution within an acceptable amount of time depen-

ding on the facility.

Any disregard may lead to malfunctions, material damage

and personal injury.

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.

Service

The encoder contains no user servicable parts and must

not be opened under any circumstances.

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

- Mount encoder using three screws using the fixing

bores of the flange. Consider the depth and diameter of

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 flat-sided encoder shaft allows for clamping as well

as for rotation prevention by a form-fit connection.

The ends of the shafts must not touch each other. Any

displacements due to temperature or mechanical tole-

rances have to be equalized by the coupling. Mind the

maximum permitted axial or radial shaft load. Tighten fi-

xing 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.

- Installation of the whole system has to be according

to EMC standards. Installation environment as well as

wiring have an impact on the encoder’s EMC.

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

tions or remote from lines with high interference emis-

sion (frequency transformers, protections, etc.).

- Ground (PE) encoder only 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 and the flange by the mechanical

assembly, if latter is electrically isolated a second con-

nection 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 impe-

rative.

Any disregard may lead to malfunctions, material damage

and personal injury.

Electrical connection

Any outputs not used must not be connected.

Supply power by means of an external power supply unit,

providing a defined voltage and uninterruptible operation.

Output driver

If the operating voltage is off, do not pulse the outputs

(track) by voltage (danger of destruction).

Provide a terminator at the end of the output connecting

lines, otherwise the output driver might be subject to

overload by line reflections.

GI357
Incremental Encoder

9-16

Assembly Instructions

Connection – connector

Whilst not connected, the plug is always to be sealed by

the plastic cover provided by the manufacturer upon de-

livery.

Appropriate mating connectors available as spare part or

with different cable length. In case of customer-specific

length use only screened cable and connectors corre-

sponding to EMC standards. Follow also the wiring in-

structions of the respective supplier.

- Press mating connector softly into the plug.

- Turn mating connector carefully until the code-mark is

interlocking the corresponding space provided by the

plug.

- Insert bushing completely.

- 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.

Terminal assignment - connector M23
Connector Assignment
Pin 1

Track B inv.

Pin 2

–

Pin 3

Test Out

Pin 4

–

Pin 5

Track A

Pin 6

Track A inv.

Pin 7

–

Pin 8

Track B

Pin 9

–

Pin 10

GNDB

Pin 11

–

Pin 12

Dimensions

Clamping flange - Connector M23

Clamping flange - Connector M12

Eccentric

fixing

Fixing bore

Syncro flange

M4x7 (3x120°)

±0.1

ш5

ш6f8

ø50h7

ø5

Terminal assignment - connector M12
Connector Assignment
Pin 1