MICRO-EPSILON eddyNCDT SGS 4701 User manual

EMU04(10x)
EMU04(11x)
EMU04(14x)
EMU04(15x)
EMU04(12x)
EMU04(13x)
EMU04(16x)
EMU04(17x)
Instruction Manual
eddyNCDT SGS 4701

MICRO-EPSILON
MESSTECHNIK
GmbH & Co. KG
Königbacher Strasse 15
94496 Ortenburg / Germany
Tel. [phone] / 168-0
Fax [phone] / 168-90
e-mail [email protected]
www.micro-epsilon.com
Certified acc. to DIN EN ISO 9001: 2008
Digital Eddy-Current Measuring System for Spindle Growth System

eddyNCDT SGS 4701
Contents
1. Safety ........................................................................................................................................ 5
1.1 Symbols Used ................................................................................................................................................. 5
1.2 Warnings.......................................................................................................................................................... 5
1.3 Notes on CE Identification............................................................................................................................... 6
1.4 Proper Use....................................................................................................................................................... 6
1.5 Proper Environment......................................................................................................................................... 7
2. System Description .................................................................................................................. 8
2.1 Measuring Principle ......................................................................................................................................... 8
2.2 Structure of the Measuring System................................................................................................................. 9
2.3 Glossary......................................................................................................................................................... 10
2.4 Technical Data ............................................................................................................................................... 11
3. Delivery .................................................................................................................................. 12
3.1 Unpacking ..................................................................................................................................................... 12
3.2 Storage ......................................................................................................................................................... 12
4. Installation and Assembly...................................................................................................... 13
4.1 Precautions.................................................................................................................................................... 13
4.2 Sensor............................................................................................................................................................ 13
4.3 Sensor Cable ................................................................................................................................................. 15
4.4 Controller ....................................................................................................................................................... 17
4.5 Connecting the Measuring System............................................................................................................... 18
5. Operation ................................................................................................................................ 19
6. Warranty.................................................................................................................................. 19
7. Service, Repair ...................................................................................................................... 20
8. Decommissioning, Disposal ................................................................................................. 20

eddyNCDT SGS 4701
Appendix
A 1 Clamping Flange Controller................................................................................................... 21
A 2 Tool Sensor Cable .................................................................................................................. 22
A 3 Optional Accessories............................................................................................................. 22
A 4 Notes for Electrostatic Discharge ......................................................................................... 23

Page 5
Safety
eddyNCDT SGS 4701
1. Safety
The handling of the system assumes knowledge of the instruction manual.
1.1 Symbols Used
The following symbols are used in the instruction manual.
Indicates a hazardous situation which, if not avoided, may result in minor or mode-
rate injuries.
Indicates a situation which, if not avoided, may lead to property damage.
Indicates a user action.
iIndicates a user tip.
1.2 Warnings
Connect the power supply and the display / output device in accordance with the safety regulations for elec-
trical equipment.
> Danger of injury
> Damage to or destruction of the controller and/or sensor
The power supply must not exceed the specified limits.
> Damage to or destruction of the controller and/or sensor
Avoid shock and vibration to the sensor and controller.
> Damage to or destruction of the controller and/or sensor
Protect the sensor cable against damage
> Failure of the measuring device

Page 6
Safety
eddyNCDT SGS 4701
1.3 Notes on CE Identification
The following applies to the measuring system eddyNCDT series SGS 4701:
- EU directive 2004/108/EC
- EU directive 2011/65/EC, “RoHS” category 9
Products which carry the CE mark satisfy the requirements of the quoted EU directives and the standards
(EN) listed therein. The EC declaration of conformity is kept available according to EC regulation, article 10
by the authorities responsible at
MICRO-EPSILON Messtechnik GmbH & Co. KG
Königbacher Straße 15
94496 Ortenburg / Germany
The measuring system is designed for the use in industry and satisfies the requirements.
1.4 Proper Use
- The measuring system eddyNCDT series SGS 4701 is designed for use in industrial areas. It is used
for displacement, distance and movement measurement
for temperature detection
position measuring of parts or machine components
- The measuring system may only be operated within the limits specified in the technical data, see Chap.
2.4.
- Use the measuring system in such a way that in case of malfunctions or failure personnel or machinery are
not endangered.
- Take additional precautions for safety and damage prevention for safety-related applications.

Page 7
Safety
eddyNCDT SGS 4701
1.5 Proper Environment
- Protection class: IP 67 (in plugged state)
- Operating temperature:
Sensor/ sensor cable 0 ... +90 °C (+32 ... +194 °F)
Controller +10 ... +70 °C (+50 ... +158 °F)
- Storage temperature: 0 ... +70 °C (+32 ... +158 °F)
- Humidity: 5 - 95 % (non-condensing)
- Ambient pressure: Atmospheric pressure

Page 8
System Description
eddyNCDT SGS 4701
2. System Description
2.1 Measuring Principle
The eddyNCDT series SGS 4701 (Non-Contacting Displacement Transducers) measuring system operates on
the basis of eddy currents without making physical contact. It is used for measurements on objects consisting
of electrically conducting materials which have ferromagnetic or non-ferromagnetic properties.
High frequency alternating currents flow through a coil cast in a sensor housing. The electromagnetic field
from the coil induces eddy currents in the electrically conducting target, causing the alternating current
resistance of the coil to change. This change of impedance delivers an electrical signal proportional to the
distance of the target from the sensor.
The eddyNCDT SGS 4701 conditions the sensor signals user-fairly at a frequency response of 2,000 Hz. Thus
a so-called spindle monitoring is also still possible at numbers of revolutions up to 120,000 rpm. The spindle
growth itself can be detected at even higher numbers of revolutions.
Ferromagnetic metals have different zones of magneti-
zation, which therefore dampen the eddy current field
of the sensor to varying degrees. Non-ferromagnetic
metals do not have these same material characteris-
tics and so are perfectly suited to axial runout mea-
surements and spindle monitoring.
In order to achieve highly accurate measurements, it
is imperatively necessary that one (or more) sample(s)
item under test is / are provided by the customer.
Fig. 1 Controller eddyNCDT SGS 4701

Page 9
System Description
eddyNCDT SGS 4701
2.2 Structure of the Measuring System
The eddyNCDT series SGS 4701 is developed for recording the thermal and mechanical extension of high-
speed milling spindles. This enables the active compensation of the axial spindle extension via CNC machine
tool.
The SGS 4701 consists of a sensor, a sensor cable and a controller, factory calibrated for ferromagnetic re-
spectively non-ferromagnetic measurement objects. Miniature sensors enable it to be installed directly in the
spindle, where the measurements take place, typically on the labyrinth-ring of the spindle. As well as measu-
ring linear extension, the temperature of the sensor is also detected and output. The compact controller can
be installed on the spindle housing via a flange or directly in the spindle.
Fig. 2 Typical installation with measurement on the labyrinth ring
Due to its compact size, the measurement technology (paired electronics and sensor) is fully integrated into
the spindle head. Compared to its predecessor model, the eddyNCDT SGS 4311, interchangeability between
sensor and electronics is unnecessary and no longer possible.

Page 10
System Description
eddyNCDT SGS 4701
2.3 Glossary
SMR Start of measuring range.
Minimum distance between sensor front and target
MMR Midrange
EMR End of measuring range (start of measuring range + measuring range)
Maximum distance between sensor front and target
MR Measuring range
0
0.5 0 0.5
9.5
600 µm
9.5
Linearity ±5 %
0 90 °C
Target
U [V]
Signal
U [V]
Temp.
Displace-
ment
Measuring range
SMR
Lin. area
100
Sensor

Page 11
System Description
eddyNCDT SGS 4701
2.4 Technical Data
Sensor system SGS4701
Measuring range 500 µm (option 250 µm 2))
Offset 100 µm (option 50 µm 2))
Linearity ±2 µm
Resolution 1) 0.5 µm
Frequency response 2000 Hz
Target ferromagnetic / non-ferromagnetic
Minimum target diameter 6 mm (option 3.5 mm 2))
Operating temperature Sensor 0 ... +90 °C (+32 ... +194 °F)
Controller +10 ... +70 °C (+50 ... +158 °F)
Temperature stability Sensor ±150 ppm FSO/°C (MMR)
Controller ±500 ppm FSO/°C (MMR)
Temperature compensa-
tion range
Sensor +10 ... +80 °C (+50 ... +176 °F)
Controller +10 ... +70 °C (+50 ... +158 °F)
Supply voltage 12 ... 32 VDC
Analog out Displacement 0.5 - 9.5 V �100 - 600 µm (option 50 - 300 µm 2))
Temperature 0.5 - 9.5 V (�0 ... +90 °C)
Protection class Sensor / controller IP 67 (in plugged state)
Dimensions EMU04(10x) 12 x 10 x 4.5 mm³
EMU04(12x) 10 x 4 x 4 mm³
Sensor cable
Diameter Ø 1.13 mm
Length 1000 mm (400 - 1500 mm on request)
Min. bending radius 12 mm
Coating FEP

Page 12
Delivery
eddyNCDT SGS 4701
Sensor system SGS4701
Shock DIN EN 60068-2-27
(50 g, 6 ms, 3 cycles in each direction)
Vibration DIN EN 60068-2-6
(20 g, 10 - 3000 Hz)
FSO = Full Scale Output; MMR = Midrange
1) Static at midrange (MMR)
2) For OEM modifications: sensor with 250 µm measuring range and 50 µm SMR distance
3. Delivery
3.1 Unpacking
1 SGS 4701(xxx)
1 Test report
1 Instruction manual
Check for completeness and shipping damage immediately after unpacking.
In case of damage or missing parts, please contact the manufacturer or supplier.
You will find optional accessories in appendix, see Chap. A 3.
3.2 Storage
Storage temperature: 0 ... +70 °C (+32 ... +158 °F)
Humidity: 5 - 95 % (non-condensing)

Page 13
Installation and Assembly
eddyNCDT SGS 4701
4. Installation and Assembly
4.1 Precautions
No sharp or heavy objects should be allowed to affect the cable sheath of the sensor cable, the power supply
cable and the output cable.
Check all plug-in connections for firm seating before starting operation.
4.2 Sensor
Sensor design 1 Sensor design 2
EMU04(12x)
EMU04(13x)
EMU04(16x)
EMU04(17x) Sensor coil
Potting
10
-0.2
(.39
008
)
1.5
±0.05
(.06
±0.002
)
4
4
2.5
(.099)
4 edges 0.2 x 45°
0 -0.05
0
-0 03
0
-0 03
(.16 )
0
-0 0011
0 -0 002
(0.008 )
EMU04(10x)
EMU04(11x)
EMU04(14x)
EMU04(15x)
6 (.24)
ø 2.5
(.1 dia)
12 (.47)
1.75 (.07)
4.5 ±0.05
(0.18 ±0.05)
0.3x45°
(0.012x45°)
ø 1.13
(.04 dia)
10
-0 005
-0 027
1.5
±0.05
(.06±0.002)
(0.39 )
-0 0002
-0 001
Fig. 3 Dimensional drawing sensor, dimensions in mm (inches), not to scale
Destruction of the
controller by electro-
static discharge via
the sensor. Please
observe the notes
regarding electro-
static discharge, see
Chap. A 4.

Page 14
Installation and Assembly
eddyNCDT SGS 4701
Start of measuring range
For each sensor a minimum distance to the target must
be maintained. This avoids a measurement uncertainty
due to the sensor pressing on the target and mechanical
damage to the sensor/ target.
Target
Measuring range
SMR
Sensor
Fig. 4 Start of measuring range (SMR), the smallest dis-
tance between sensor face and target
Measuring area
The minimum measuring area must have a diameter of
6 mm or greater for an eddy-current sensor. Optional
sensors are available with a minimum area diameter of
3.5 mm. If you underrun the minimum measuring area nor
reproducibly measurements are possible.
Measuring area ø ≥ 6 mm
Sensor
Fig. 5 Minimum measuring area for eddy-current sensor

Page 15
Installation and Assembly
eddyNCDT SGS 4701
4.3 Sensor Cable
Operating temperature -40 ... +90 °C Inner conductor silver-coated annealed copper wire
Mating life 20 cycles Dielectric core FEP
Fire resistance VM-1 Outer conductor silver-coated annealed copper wire
Cable retention 12.74 N Jacket FEP
Minimum bending radius 12 mm
5.3 ± 0.3
(.21 ± .02)
1.44 ± 0.2 (.06 ± .008)
3 ± 0.2
(.12 ± .008)
Cable, -length [mm] 40 50 80 100 130 150
EMU04(100)-C080 x
EMU04(101)-C150 x
EMU04(102)-C100 x
EMU04(103)-C050 x
EMU04(104)-C040 x
EMU04(105)-C130 x
EMU04(120)-C080 x
EMU04(121)-C100 x
EMU04(122)-C150 x
Fig. 6 Dimensional drawing sensor cable, dimensions in mm (inches), not to scale
Lay the sensor cable in such a way that no sharp-edged or heavy objects can affect the cable sheath.
Do not kink the cable. Details to the sensor cable are listed in the appendix, see Chap. A 4.
Sensor Bending radius:
R ≥ 12 mm
Controller
Fig. 7 Minimum bending radius for sensor cable

Page 16
Installation and Assembly
eddyNCDT SGS 4701
Do not shorten the sensor cable. Loss of functionality. Removing the connector is only permitted behind the
plug-sided crimp when using the solder connections.
Connect the sensor cable to the controller, see Fig. 8.
Solder connection Plug connection
Open the cable gland on the controller.
iAvoid a strong cable bending.
Bend up the green cable seal easily and insert the sensor cable.
Push the sensor cap over the sensor cable.
Run the sensor cable through the cable gland.
Shield
Signal
Solder the sensor cable to the connection
board.
Connect the sensor cable to the female con-
nector.
Close the cable gland.
Push the sensor cap onto the controller housing until it snaps in place.
Fig. 8 Connection sensor cable

Page 17
Installation and Assembly
eddyNCDT SGS 4701
4.4 Controller
M12x1
ø 12 -0.1
(.47 dia. -.004)
WS 8
(ca. 8) (approx. .31)
102.2 ±0.5 (4.02 ± .02)
94.2 ±0.1 (3.71 ± .004)
Fig. 9 Dimensional drawing of controller, dimensions in mm (inches), not to scale
The controller is mounted laminar with a circumferential clamping on housing or with an optional clamping
flange.

Page 18
Installation and Assembly
eddyNCDT SGS 4701
4.5 Connecting the Measuring System
Provide the power supply for the controller.
Connect the 8-pin M12 connector to the controller with a power supply 24 VDC.
iOptional accessories:
PC4701-10 power supply and output cable, 10 m long, with 8-pin. female connector respectively with
free ends.
Connect the measurement signal display respectively control unit to the controller.
PIN Comment Color PC4701-10
5
64
3
2
1
7
8
8-pin. male connector
controller, view on pin
side
1 Ground white
2 12 ... 32 VDC brown
3Displacement signal
(0.5 ... +9.5 V) at 100 ... 600 µm
green
4Temperature signal
(0.5 ... +9.5 V) at 0 ... +90 °C
yellow
5 NC gray
6, 7 internally assigned pink, blue
8 NC red
Screen Housing -
Fig. 10 Pin assignment for signal output

Page 19
Operation
eddyNCDT SGS 4701
5. Operation
The system is ready for operation. There are no adjustments which must be done by the user.
MICRO-EPSILON recommends to let the system warm up for about 30 minutes.
6. Warranty
All components of the device have been checked and tested for perfect function in the factory. In the unlikely
event that errors should occur despite our thorough quality control, this should be reported immediately to
MICRO-EPSILON.
The warranty period lasts 12 months following the day of shipment. Defective parts, except wear parts, will be
repaired or replaced free of charge within this period if you return the device free of cost to MICRO-EPSILON.
This warranty does not apply to damage resulting from abuse of the equipment and devices, from forceful
handling or installation of the devices or from repair or modifications performed by third parties.
No other claims, except as warranted, are accepted. The terms of the purchasing contract apply in full.
MICRO-EPSILON will specifically not be responsible for eventual consequential damages. MICRO-EPSI-
LON always strives to supply the customers with the finest and most advanced equipment. Development
and refinement is therefore performed continuously and the right to design changes without prior notice is
accordingly reserved. For translations in other languages, the data and statements in the German language
operation manual are to be taken as authoritative.

Page 20
Service, Repair
eddyNCDT SGS 4701
7. Service, Repair
In the event of a defect on the sensor, controller or
the sensor cable:
Please send us the effected parts for repair or
exchange.
In the case of faults the whole measuring system
must be sent back to:
MICRO-EPSILON MESSTECHNIK
GmbH & Co. KG
Königbacher Straße 15
94496 Ortenburg / Germany
Tel. [phone]
Fax [phone] / 168-90
[email protected]
www.micro-epsilon.com
8. Decommissioning, Disposal
Disconnect the power supply and output cable on the controller.
Disconnect the sensor cable between sensor and controller.
Do the disposal according to the legal regulations (see directive 2002/96/EC).