Givi Misure GVS 206 S User manual
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Installation Manual
Self-aligned Scale
www.givimisure.it
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
. 2/16
1
1
PRELIMINARY REMARKS AND WARNINGS
GVS 206 S
.
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(. ).
,
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( ).
GVS 206 S scales are generally used on synchronized press
brakes and mounted in vertical position. If the scales are used in
other applications and mounted horizontally (longitudinal or
transversal), please follow the indications provided in this
manual.
The scale should be mounted to be as accessible and protected
and as close to the machine’s slide guides as practically
possible.
Mount the scale with the sealing lips facing down or away from
the machining area (see recommended mounting positions).
The use of a sheet metal cover, especially for particularly
exposed axes, is recommended to prevent any damage from
falling tools or material and from infiltration of oils or fluids.
Avoid supporting surface painting and check their planarity.
To avoid and prevent contact of cable with any protrusion, the
reader head should remain stationary and the scale body should
be moved.
Spacer blocks or supporting arms should be adequately sized
and made rigid to exclude any flexion or vibration that could
compromise the scale’s accuracy.
Make connections when power supply is switched off and
batteries (when present) are excluded as well.
/ WARNING!
.
Do not touch the contacts of the cable’s connector in order to avoid electrostatic discharges (ESD) on the device.
A.
.
, ,
.
B.
.
(. « »)
,
.
A. Recommended mounting position. The use of a sheet metal
cover protects the scale from infiltration of liquids, dust,
shavings and from the accidental fall of tools or material.
B. Alternative mounting position. In the presence of liquids or
other polluting agents, it is necessary to pressurize the scale
(see paragraph “Pressurization”) and to add a sheet metal
cover to protect all the scale, as shown in the picture.
/ RECOMMENDED MOUNTING POSITIONS
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
. 3/16
- .
.
Any kind of lever arm must be avoided. A proper joint orientation
will prevent any scale damaging, even in case of anomalous
descent of the punch-holder.
2
2
INSTALLATION
TCEI M6x20 (DIN 912).
TCEI
M8x20 TCEI M8x10.
,
( ).
,
, ,
.
Fix the two scale ends with screws TCEI M6x20 (DIN 912).
Fix the transducer to the double-effect joint with screws M8x20,
or to the steel wire with screws TCEI M8x10.
Make sure the carriage does not hit the end caps during the
complete movement (safety margin).
Place the cable and manually cover the entire measuring length
to make sure that both the scale and the cable are able to move
without interferences.
GVS 206 S GV-PB
PBS-HR
.
GV-PB adapter is provided with each scale GVS 206 S, to
guarantee the mechanical compatibility with PBS-HR scale.
RECOMMENDED JOINT ORIENTATION
ML = /
ML = MEASURING LENGTH
/
DIMENSIONS IN mm
/
SAFETY MARGIN
/ POSITIVE COUNTING DIRECTION
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
.4/16
3
3
FINAL OPERATIONS AND PRECAUTIONS
() ,
.
,
(< 1 W).
Use a dial gauge to check the correct alignment of the scale
housing and correct any misalignment.
Check the correct connection and the continuity of the shield
which has to be connected to a grounding node with very low
impedance (< 1
Ω
).
.
, (.
),
.
The output of the cable from the transducer can be easily
modified. To this purpose, loosen the screws that block the cover
(see the picture below), modify the cable orientation and tighten
again the screws.
±0,1
ALIGNED SCALE HOUSING
±
0.1 mm
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
.5/16
4
4
PRESSURIZATION
GVS 206 S ,
.
,
, .., ,
.
GVS 206 S.
.
:
GVS 206 S - . IP 54 IP 64
GVS 206 S scales offer a very good protection class, generally
sufficient for press brakes applications.
If the scales are used in particularly aggressive environments,
characterized by dusts, fluids, etc., it is possible to further
improve their protection class, through their pressurization.
All GVS 206 S scales, in fact, are predisposed to pressurization,
through the air inlet holes positioned on both end caps, and on
both sides of the transducer.
The protection classes that can be obtained are the following
ones:
STANDARD PRESSURIZED
GVS 206 S - OPTICAL IP 54 IP 64
.
, 30
, .
6
9 / (.) .
.
, ,
ISO 8573-1.
: 1,
£0,1
:
4 £+3 °C
: 1 £0,01 /
3
,
( ..).
.
.
.
Pressurization needs to be always active. If this is not possible,
wait at least 30 minutes from the last machining, before
interrupting the air flow.
The necessary compressed air flow varies between 6and 9
normal l/min per each scale.
Depending on the length of the measuring system, the
recommended pressures are described in the table below.
The compressed air introduced in the measuring system must be
cleaned and comply with the following quality classes as per ISO
8573-1.
- Solid contaminants: Class 1 solid particles size ≤0.1 μm
- Pressure dew point: Class 4
≤
+3 °C
- Oil content: Class 1
≤
0.01 mg/m
3
Moreover, the pneumatic circuit has to be endowed with a drying
system and controlling devices (sense pneumatic pressure, etc.).
The use of a sensor for the air flow control at the scale inlet is
recommended.
Replace the filter cartridges when necessary; interrupt
pressurization before proceeding with the replacement.
RECOMMENDED PRESSURES ACCORDING TO SCALE LENGTH
0 ÷1000
1000 ÷2000 > 2000
0.5 ÷0.6
0.6 ÷0.7 0.8 ÷0.9
COMPRESSED AIR INLET
COMPRESSED AIR INLET
COMPRESSED AIR INLET
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
. 6/16
,
:
-
, .
- -
, .
- , ,
(
,
).
How to prevent condensate, when pressurization is not active: -
Clean frequently the machine guides close to the scale,
avoiding the use of compressed air.
-Protect the scale against coolants as much as possible, avoiding
the stagnation of liquids in the machine’s collecting tank.
-Protect, if possible, the scale from the direct contact with vapours
developed during the working cycle (with upper covers closed
on the side or lower screens to prevent the vapour from laying
on the sealing lips).
:
- .
.
- .
, .
- .
.
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.
- .
.
- .
30 ,
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,
.
.
Possible causes of an ineffective pressurization and remedies: -
Inadequate filtering and air quality. Respect the instructions
provided.
-Insufficient air pressure. Respect the pressure values
suggested by the Manufacturer.
-Filters blocked by liquids or dust. Use self-draining filters or
regularly empty the glasses and replace the filter cartridges.
-Broken, obstructed or blocked air pipes. Verify their integrity.
-Damaged sealing lips. Replace them and verify the respect of
the scale’s alignment tolerances.
-Deactivation of pressurization during machining. Wait at least
30 minutes from the last machining, before disconnecting
pressurization. Make sure that, without pressurization, the scale
is not immersed in stagnating liquids.
-Presence of liquid jets that hit the scale directly or indirectly,
with a higher pressure if compared to the pressurization one.
Use covers to adequately protect the scale from such jets.
5
5
ELECTRICAL CONNECTIONS
+ Digital Output + Serial Output
GVS 206 S 10-
, Æ= 7,1 ,
.
.
(SSI - BiSS).
:
- : 0,35
2
- :0,10
2
GVS 206 S absolute scale is supplied with a 10-wire shielded
cable,
∅
= 7.1 mm, PUR external sheath, with low friction
coefficient, oil-resistant and suitable for continuous movements.
Inside the cable, a further shield for the twisted pair of the digital
signals (SSI - BiSS) is present.
Conductors section:
- supply: 0.35 mm
2
- signals: 0.10 mm
2
GIVI MISURE ,
.
GIVI MISURE can supply compressed air units that respect the required air quality
classes, allowing the connection of up to three optical scales.
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
. 7/16
.
80 .
:
NOTE.
The cable’s bending radius should not be lower than 80 mm.
The following output signals are available:
SIGNALS CONDUCTOR
COLOR
+ V
+ V Red
0 V
0 V Blue
A
A Green
A
A Orange
B B White
B
B Light-blue
CK
CK Brown
CK
CK Yellow
D
D Pink
D
D Grey
SCH
SCH Shield
Serial Output
GVS 206 S 6-
, Æ= 7 ,
.
.
:
- : 0,25
2
- : 0,25
2
.
70 .
:
GVS 206 S absolute scale is supplied with a 6-wire shielded
cable,
∅
= 7 mm, PUR external sheath, with low friction
coefficient, oil-resistant and suitable for continuous movements.
Conductors section:
- supply: 0.25 mm
2
- signals: 0.25 mm
2
NOTE.
The cable’s bending radius should not be lower than 70 mm.
The following output signals are available:
SIGNALS CONDUCTOR
COLOR
+ V
+ V Brown
0 V
0 V White
CK
CK Green
CK
CK Yellow
D
D Pink
D
D Grey
SCH
SCH Shield
DIN 47100.
Complying to DIN 47100.
GVS 206 S
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
. 8/16
,
(, ,
, ).
Avoid locating the cable next to any device that may cause
electromagnetic interferences (motors, solenoid valves, inverters).
.
0,5
2
0,25
2
.
: C £90 – 100 /
.
SSI
≤10 ≤20 ≤50
1,2 0,4 0,2
BiSS
≤2 ≤10 ≤20 ≤50
8 4 1 0,4
If interferences are detected, act directly on the source of disturb
using EMC filters.
If cable extensions are needed, it is necessary to use shielded
cables with a section of at least 0.5 mm
2
for power supply and
0.25 mm
2
for signals.
The cable capacity should be: C
≤
90 – 100 pF/m.
SSI
Cable length ≤10 m ≤20 m ≤50 m
Clock frequency 1.2 MHz 0.4 MHz 0.2 MHz
BiSS
Cable length ≤2 m ≤10 m ≤20 m ≤50 m
Clock frequency 8 MHz 4 MHz 1 MHz 0.4 MHz
0,5- ,
.
.
50 .
The scale is supplied with a standard 0.5-m long cable, suitable for
continuous movements, but longer lengths can be required.
Ensuring the required power supply voltage to the transducer, the
maximum cable length can be extended to 50 m.
-
;
-
In case of cable extension, it is necessary to guarantee:
- the electrical connection between the body of the
connectors and the cables shield;
- the required power supply to the transducer.
GVS 206 S
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
. 9/16
6
6
TECHNICAL FEATURES
GVS 206 S – OPTICAL SCALE GVS 206 S
Cod. GVS 206 S
204,8
10,6 x 10
-6
°C
-1
() TTL Line Drive
Line Driver 5 - 1
SSI - BiSS C ()
, . 1
-
0,1
±2,5 *
±1 *
ML
170, 220, 270, 320, 370, 420, 470, 520,
570, 620, 720, …
. 6000
. 60 /
30 /
2
≤1,5 N
(EN 60068-2-6)
100 /
2
[55 ÷2
000 ]
(
EN 60068-2-27)
150 /
2
[11 ms]
(EN 60529)
IP 54 IP 64
0 °C ÷50 °C
-20 °C ÷80 °C
20% ÷80% (
)
5 Vdc ±5% 10 ÷ 28 Vdc ±5%
(R = 120 ΩΩΩ)
200 mA
MAX
140 mA
TYP
5 Vdc
50 mA
MAX
30 mA
TYP
10 ÷ 28 Vdc
. 20 **
.
850 + 1800 /
Cod. GVS 206 S
Measuring support stainless steel grating
Grating pitch 204.8 μm
Linear thermal expansion coefficient 10.6 x 10
-6
°
C
-1
Incremental signal (optional) TTL Line Driver
Resolution Line Driver 5 µm - 1 µm
Serial interface SSI - BiSS C (unidirectional)
Resolution absolute measure 1 μm
-
0.1 μm
Accuracy grade
±
2.5 μm * standard version
±
1 μm * high-accuracy version
Measuring length ML in mm
170, 220, 270, 320, 370, 420, 470, 520,
570, 620, 720, … mm
max. 6000 mm in modular version
Max. traversing speed 60 m/min
Max. acceleration 30 m/s
2
Required moving force
≤
1.5 N
Vibration resistance
(EN 60068-2-6)
100 m/s
2
[55
÷
2
000 Hz]
Shock resistance
(EN 60068-2-27)
150 m/s
2
[11 ms]
Protection class
(EN 60529)
IP 54 standard IP 64 pressurized
Operating temperature 0
°
C
÷
50
°
C
Storage temperature -20
°
C
÷
80
°
C
Relative humidity 20%
÷
80% (not condensed)
Reading block sliding without contact
Power supply 5 Vdc
±
5% or 10 ÷ 28 Vdc
±
5%
Current consumption
(with R = 120 ΩΩΩ)
200 mA
MAX
140 mA
TYP
5 Vdc
50 mA
MAX
30 mA
TYP
10 ÷ 28 Vdc
Max. cable length 20 m **
Electrical connections see related table
Electrical protections inversion of polarity and short circuits
Weight 850 g + 1800 g/m
*
±X 1
.
**
50
.
* The declared accuracy grade of
±
X μm is referred to a measuring length of 1 m.
** Ensuring the required power supply voltage to the transducer, the maximum cable
length can be extended to 50 m.
P P
STEEL GRATING
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
.10/16
7
7
OUTPUT SIGNALS
Line Driver Line Driver Incremental Signals
LINE DRIVER
5 Vdc POWER SUPPLY 5 Vdc
LINE DRIVER
Output signals LINE DRIVER
R = 120 ΩI
L
= ±20 mA
MAX
Load per channel R = 120 ΩI
L
= ±20 mA
MAX
A B90°±5° A and B phase displacement 90
°
±
5
°
electrical
10 ÷ 28 Vdc POWER SUPPLY 10 ÷ 28 Vdc
LINE DRIVER
Output signals LINE DRIVER
R = 1200 ΩI
L
= ±20 mA
MAX
Load per channel R = 1200 ΩI
L
= ±20 mA
MAX
A B90°±5° A and B phase displacement 90
°
±
5
°
electrical
90°
A
B
180° 270° 360°
A
B
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
.11/16
Serial Signals
SSI - SSI Version
SSI (
) -
Interface SSI (Synchronous Serial Interface)
Binary - Gray
EIA RS 422 Signals level EIA RS 422
0,1 ÷1,2 * Clock frequency 0.1
÷
1.2 MHz*
n n Position bit
T
A
T
A
Clock sequence
T
C
. 20 T
C
max. 20 μs
T
D
. 5 T
D
max. 5 μs
* 2 .* The maximum frequency is guaranteed with a cable length up to 2 m.
/ WARNING!
250 .
The first position request should be made 250 ms after switching on.
SSI (
)
Interface SSI (Synchronous Serial Interface)
Binary
n
+ +
n Position bit + Parity + Error
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
.12/16
SSI (
)
Interface SSI (Synchronous Serial Interface)
Binary
n
+
n
Position bit + Parity
+ Position bit + Error
SSI
26- .
-:
-:
= 1
= 0
PARAMETERS FOR SSI PROTOCOL
Position bit
The value is transmitted with sign at 26 bit.
Optional bit
-Parity: an additional bit for odd parity or even parity is
transmitted
-Error: it signals an error in reading the absolute position
Error bit = 1 absolute position ok
Error bit = 0 absolute position wrong
.
.
Tc .
,
25 .
SSI
/
1600 .
Code
The code used for the transmission of the position is in binary or
Gray format.
In case the Gray format is used, it is not possible to have the
optional bit in the transmitted frame.
Refresh time
At the end of Tc period, the sensor provides a new position.
If a new position is not required, the sensor refreshes its position
every 25 µs.
SSI timeout
In case of error/interruption of the serial line, the sensor goes
back in the “ready” status after a period of 1600 µs.
,
, 0, ,
. ,
.
Position error condition
In case of wrong absolute position, the status of the error bit, if
enabled, is at 0 and a position value equal to 0 is transmitted.
If the error bit is not enabled, the sensor will force the D signal
low.
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
.13/16
BiSS C () - BiSS C (unidirectional) Version
BiSS C Interface BiSS C unidirectional
EIA RS 485 / RS 422 Signals level EIA RS 485 / RS 422
0,1 ÷8 * Clock frequency 0.1
÷
8 MHz*
n26 + 2 + 6 n 26 + 2 + 6 bit
T
C
6 T
C
6 µs
T
ACK
. 22 T
ACK
max. 22 μs
* 2 .* The maximum frequency is guaranteed with a cable length up to 2 m.
BiSS C
26-
.
= 1
= 0
= 1
= 0
Tc .
,
25 .
BiSS
/
1600 .
CRC6
CRC ( ) 6 ,
043, MSB ( )
.
PARAMETERS FOR BiSS C UNIDIRECTIONAL PROTOCOL
Position bit
The value is transmitted with sign at 26 bit.
Error
It signals an error in the absolute position reading
Error bit = 1 absolute position ok
Error bit = 0 absolute position wrong
Warning
It signals a reading difficulty
Warning bit = 1 reading ok
Warning bit = 0 difficulty in reading
Refresh time
At the end of Tc period, the sensor provides a new position.
If a new position is not required, the sensor refreshes its position
every 25 µs.
BiSS timeout
In case of error/interruption of the serial line, the sensor goes
back in the “ready” status after a period of 1600 µs.
CRC6 polynomial
CRC at 6 bit inverted, with polynomial 0x43, MSB as first bit of the
frame.
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
.14/16
8
8
USE AND MAINTENANCE
GVS 206 S .
.
,
.
.
.
GVS 206 S scales do not require any particular maintenance
and the correct use guarantees quality and good operation.
During machining, remove any accumulation of swarfs that does
not allow the free sliding of the movable parts.
Any discrepancy should be reported to the Manufacturer for
repairing or replacement of defective parts.
After maintenance, verify the mounting tolerances and adjust
any eventual misalignment.
9
9
WARRANTY TERMS
GVS 206 S
12 .
.
,
.
.
/ ,
, ,
,
,
.
,
, ,
,
.
,
,
.
GVS 206 S scales are guaranteed against manufacturing faults for
a period of 12 months from the date of purchase. Any repair must
take place at the Manufacturer’s premises and the Customer shall
arrange the delivery of the product, at its own risk and expense.
The Manufacturer is released from any claim against damages
due to the non-observance of these instructions or mounting
tolerances which causes the annulment of the warranty terms.
The warranty does not provide for repairing and/or replacement
of those parts that have been damaged by negligence or misuse,
improper installation or maintenance, maintenance performed by
unauthorized personnel, transport or any other circumstance that
excludes a manufacturing fault of the product.
Similarly, the warranty does not apply if serial numbers or any
data identifying the product are cancelled or altered in any way,
and if product modifications are introduced without the written
authorization of the Manufacturer.
The Manufacturer declines any responsibility for damages to people
or properties deriving from the use of the product, including any
loss of profit or any other direct, indirect or accidental loss.
10
10
DISPOSAL
(WEEE)
2012/19/UE
Disposal of waste electrical and electronic equipment (WEEE)
European Council Directive (2012/19/EU
)
WEEE ,
, .
, .
,
,
.
( 2012/19/EU).
.
The use of the WEEE Symbol indicates that this product may not be
treated as household waste.
If this product is disposed correctly, you will help to protect the
environment.
For more detailed information about the recycling of this product,
please contact your local authority, your household waste disposal
service provider or the retailer where you purchased the product.
This information regards only European customers, according to
2012/19/EU European Parliament Directive.
For other countries, please refer to local law requirements.
GVS 206 S INSTALLATION OF SCALE GVS 206 S
MT01_A64_A_GVS_206S_GIVI_ENGITA rev. A
MT0CV_GIVI_ENGITA(P) 19/03/10
.15/16
11
11
NOTES
GVS 206 S INSTALLATION OF SCALE GVS 206 S
_GIVI_ENGITA(P) 19/03/10
OUR PRODUCTS ARE SOLD AND HAVE AFTER-SALE SERVICE IN ANY INDUSTRIALIZED COUNTRY
GIVI MISURE S.r.l. A SOCIO UNICO Via Assunta, 57 - 20834 Nova Milanese (MB) - Italy
C.F. e Iscrizione al Reg. Imprese di Monza e Brianza n° 04355540156 - Cap. Soc. € 51.480,00 I.V.
Tel. +39 0362 366126 - Fax +39 0362 366876 - www.givimisure.it - sales@givimisure.it
OPTICAL SCALES
MAGNETIC SYSTEMS
ROTARY ENCODERS
DIGITAL READOUTS
POSITION CONTROLLERS
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