Baumer GI357 Original - Betriebs- Und Montageanleitung Seite 2

EN
Translation of the original operating
and mounting instructions
GI357
Incremental Encoder
9
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 wi-
ring have an impact on the encoder's EMC.
- 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 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 imperative.
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 over-
load by line reflections.
13
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-
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.
- 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.
10
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-speci-
fic length use only screened cable and connectors cor-
responding 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
8 9 1 without zero pulse
10
12 2 Pin 1 Track B inv.
7
Pin 2 –
3
6
11
Pin 3 Test Out
4
5
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 UB
14
- 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 fol-
lowing events in order to uncover dangerous errors and,
in case of error, actuate appropriate safety precautions:
- Non-equivalence Monitoring
The non-inverted and inverted signal lines of each sa-
fety track (A vs. A inv. and B vs. B inv.) 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
Make sure none of the signal cables (A, A inv, B, B inv.)
is high-impedant. The encoder will utilize the high-
impedant status of the safety tracks (A, A inv., B, B inv.)
to output an error message.
- Safe rotational speed
In the event of a predefined speed limit, the master
control will require identical speed frequencies on both
safety tracks. If not, it is a fatal error.
- Safe rotational direction
The phase shift of the safety relevant incremental si-
gnals (A vs. B and A inv. vs. B inv.) has to be monitored.
A dangerous error occurs when exceeding the given to-
lerances. 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 inv., B, B inv.), the customer has to ensure
shaft standstill by means of a second, independent
safety precaution within an acceptable amount of time
depending on the facility.
11
Terminal assignment - connector M12
Connector Assignment
6 4
5
Pin 1 Track A
3
7
Pin 2 Track B
8
1 2
Pin 3 Track A inv.
Pin 4 Track B inv.
Pin 5 –
Pin 6 Test Out
Pin 7 GNDB
Pin 8 UB
Dimensions
Clamping flange - Connector M23
48 ±0.1 57
M4x7
Assignment
with zero pulse
M3x7
Track B inv.
–
Test Out 16.6
Zero pulse
Track A
Track A inv.
Clamping flange - Connector M12
–
Track B
48 ±0.1 57
–
GNDB
GND Sense
UB
M4x7
M3x7
13
15
Fixing bore
Eccentric
fixing
69
12
10 20 46 10 20
15
15
3
3
3
3
10 20 46 10 20
15 15
3
3
3
3
16
- Zero pulse as well as the test output are not part of
the SIL2 approval and must not be used to fulfill safety
functions.
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.
Syncro flange
4 10
42 3 9
±0.1
M4x7
(3x120°)
3