ASM positape WBT Series User manual

Installation and operation manual EN
positape®WBT Series
Combined displacement and inclination sensors
Please read carefully before installation and operation!

© ASM Automation Sensorik Messtechnik GmbH, 2020
All rights reserved.
Am Bleichbach 18 - 24
85452 Moosinning
Germany

positape®
Combined displacement and inclination sensors - WBT Series
Version 2.1.0
www.asm-sensor.com 3
1Safety instructions ........................................................................................................4
1.1 Signal words and symbols .............................................................................................................4
1.2 General safety instructions.............................................................................................................5
1.3 Intended use...................................................................................................................................6
2Transport and storage...................................................................................................6
3Installation and initial operation...................................................................................7
3.1 Mechanical installation ...................................................................................................................7
3.2 Electrical connection ....................................................................................................................12
3.3 Operating temperature .................................................................................................................14
4Maintenance and disposal ..........................................................................................15
4.1 Maintenance and repair ...............................................................................................................15
4.2 Disposal........................................................................................................................................15
5Output specification....................................................................................................16
5.1 Measurement signal and range....................................................................................................16
5.2 Digital interface CANopen............................................................................................................17

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Combined displacement and inclination sensors - WBT Series
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1 Safety instructions
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1.1 Signal words and symbols
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WARNING, Risk of Injury:
Indicates a potentially hazardous situation, which, if not avoided, can result in serious
injury or property damage.
WARNING, Risk of Personal Injury or Death:
Indicates a situation that can result in serious personal injury or death if not properly
avoided.
WARNING, Risk of Personal Injury or Death:
Indicates a situation that can result in moderate personal injury or death if not properly
avoided.
WARNING, Risk of Personal Injury:
Indicates a situation that can result in minor personal injury if not properly avoided.
WARNING, Risk of Property Damage:
Indicates a situation that can result in minor to major property damage if not properly
avoided.
Product liability
•Disregarding the following instructions may result in malfunction, damage to property and personal injury
and releases the manufacturer from product liability.
Safety regulations
•National safety regulations must be observed!
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Combined displacement and inclination sensors - WBT Series
Version 2.1.0
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1.2 General safety instructions
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Danger or injury to the operator or damage to the property
•Connection to power supply must be performed in accordance with safety
instructions for electrical facilities and performed only by qualified personnel.
•Any alteration, reconstruction or extension of the sensor is not allowed!
•The sensor must be operated only within values specified in the catalog or
datasheet.
•The danger of personal injury and danger of property damage due to a
malfunction of the sensor in machines or systems must be excluded by
additional safety measures.
•In safety-relevant applications, additional facilities shall be provided for
maintaining safety and preventing damage.
•Check whether the protection class of the sensor is suitable for the
application.
Risk of crushing and cutting injury due to pre-tensioned spring being released
from housing when opened!
•Do not open the sensor.
Risk of cutting injury due to uncontrolled retraction of the tape
•Do not damage the measuring tape!
•Do not let the measuring tape spring back uncontrolled!
•Do not exceed the maximum tape extension range!
•Do not bend the measuring tape!
•Do not let the measuring tape be dragged on objects!
Mechanical damage or destruction of the sensor
•Avoid impact and shock to the sensor.
•Do not allow the measuring tape to spring back uncontrolled.
•Do not pull out the measuring tape beyond the range of the sensor.
Malfunction due to the accumulation of dirt on the measuring tape
•Do not oil or lubricate the measuring tape.
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Combined displacement and inclination sensors - WBT Series
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1.3 Intended use
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positape®Tape Extension Position Sensor with an integrated inclinometer are used to measure both linear
and inclination position at the same time. Both output parameters – linear position and inclination – are
independent of each other.
The ranges for the measuring length and inclination as well as the information on environmental compatibility
and connection data given in the data sheet must be observed. The sensor is used as intended if it is
operated within its specified technical data and ambient conditions.
The installation and operating instructions supplied with the unit must be observed and all maintenance and
service work must be carried out. The data sheet of the respective sensor is part of this instruction manual.
If not available, it may be requested by stating the respective model number.
The sensor must not be improperly mounted, operated or serviced. In addition, operation of the sensor in
faulty condition is prohibited.
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2 Transport and storage
Risk of damage to the measuring tape
•Do not lift the sensor by the tape.
Observe storage and transport temperatures according to the operating temperature (see data sheet)
Max. rel. humidity 60%, condensation must be excluded
The device must be secured against slipping and tipping during transport.
Unpacking
Do not unpack sensor by holding it at the tape or tape stop.
Shipment damages
Check sensor immediately for shipment damage. In case of any damage or equipment not operating
appropriately, please contact your supplier. Avoid bending the tape stop while packing the sensor.
Shipment content
•Sensor
•Installation and operation manual
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Combined displacement and inclination sensors - WBT Series
Version 2.1.0
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3 Installation and initial operation
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3.1 Mechanical installation
Risk of injury from touching the moving measuring tape or moving parts
during operation
•Operate the sensor only with a suitable protective device (eg. tape cover) to
prevent injury!
Choice of installation position
•Select a protected installation position for the measuring tape.
This prevents damage of the measuring tape.
•Preferably mount the sensor with the tape outlet pointing downwards.
This prevents liquids from entering through the tape outlet.
•Screw the sensor onto a flat surface or provide a three-point mounting.
This avoids distortion and damage to the sensor.
Fitting the sensor
Depending upon the sensor model, holes in the base plate or threads in the sensor housing enable
attachment of the sensor. Dimensions required are listed in the data sheet and the catalog.
Tape attachment device
For fastening the tape clip the 5 mm dia. bore is provided.
Damage to the measuring tape due to incorrect installation
•Prevent the measuring tape from binding.
•Ensure sensor is installed and aligned correctly to prevent damage to tape. Where
required use a tape diverting pulley WBR1.
Damage to the measuring tape due to an axial twist
•Do not exceed the maximum twist of 90° of the measurement tape
•A single tape twist of 90° is possible. Before twisting the tape, a distance of at least
30 cm from the tape outlet must be kept in axial direction. While retracting the tape,
it must be twisted back at the distance of at least 30 cm before the tape entirely
enters the tape outlet.

positape®
Combined displacement and inclination sensors - WBT Series
8
Version 2.1.0
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Damage to the measuring tape due to the tape misalignment
•Tape travel should only be axial to the tape outlet - no misalignment is allowed!
•Tape misalignment shortens service life of sensor and causes error in
measurement. Warranty will not be granted for damage caused by misalignment.
correct incorrect
If tape travel axial to the tape outlet is not possible, a tape guide wheel must be used in
order to divert the tape. The deflection is possible only in one axis - on the flat side.
Pulley wheels with the diameter of >15 mm are recommended (see chapter
“Accessories” in the catalog positape®).
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Combined displacement and inclination sensors - WBT Series
Version 2.1.0
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Torques for fixing screws
Sensors with mounting clamps
Model Screw Screw
material
Torque
[Nm]
WBT61 (oval hole) M5 A2 2.0
WBT85 M6 A2 4.0
WBT85 (oval hole) M6 A2 3.0
The clamps are mounted ex-factory.
Fixing is possible laterally or on the bottom side of the clamp.
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Sensors with holes in the base plate
Model Screw Screw material Torque
[Nm]
WBT21 M5 A2 2.5
WBT21 M6 A2 3.0
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Combined displacement and inclination sensors - WBT Series
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Mounting options for inclination measurement for WBT21 sensors
The mounting option can be set by the user via software. Sensor position as shown equals 0°.
WBT21
Mounting option 1
Mounting option 2
Mounting option 3
Output signal
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+
-
+
-
+
-

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Combined displacement and inclination sensors - WBT Series
Version 2.1.0
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Mounting options for inclination measurement for WBT61 / WBT85 sensors
The mounting option can be set by the user via software. Sensor position as shown equals 0°.
WBT61 / WBT85
Mounting option 1
Mounting option 2
Mounting option 3
Output signal
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+
-
+
-
+
-

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Combined displacement and inclination sensors - WBT Series
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3.2 Electrical connection
Damage or destruction of the sensor due to excessive operating voltage or
mounting error
•The applied operating voltage must not exceed the value specified in the data
sheet.
•Operate the sensor only within the limits specified in the data sheet.
•Connecting to the power supply only by qualified personnel and in accordance with
the applicable safety regulations for electrical equipment.
•Do not connect or disconnect the sensor under voltage!
Corrosion in the sensor due to moisture penetration
•Use the sensor only according to protection class.
•The mating connector should have the same protection class as the sensor,
otherwise the lower protection class of the mating connector is valid.
•Avoid crossing the dew point.
•Cable outputs must be installed in such a way that no moisture can get into the
cable.
•The protection class of sensors with connector output is valid only if the electrical
plug is connected!
Damage of the sensor cable due to mechanical stress
•Do not twist the M12 connector insert.
•It is important that the knurled nuts on the connectors are tightened to the correct
torque for each different size of the connector:
•M12-ASM connectors / couplings: 1.0 Nm
•connectors / couplings of other manufacturers: according to manufacturer
instruction.
•Use a torque wrench.
•Do not strain the connection cable.
•A separate strain relief is recommended.
Connector Pin assignment
According to the definitions of the output types contained in the appendix. Observe different color code for
pre-assembled accessory cables. See catalog information for accessories.
Supply voltage
See specification in the data sheet of the sensor. The maximum operating voltage must not be exceeded.
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Combined displacement and inclination sensors - WBT Series
Version 2.1.0
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Installation of the sensor supply cable
incorrect correct
Admissible bending radius of the
cable must be observed:
R ~ 5 x D
R ~ 10 x D (underwater cable)
Length compensation for the
cable must be observed
A separate cord grip for cable
strain relief is recommended
Observe cable routing in case of
splashing water, water
condensation and humidity
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Combined displacement and inclination sensors - WBT Series
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Electromagnetic Compatibility (EMC)
The electromagnetic compatibility of positape®Tape Extension Position Sensors is influenced by the sensor
wiring.
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3.3 Operating temperature
positape®WBT61 -40 … +85°C
positape®WBT85 -40 … +85°C
positape® WBT21 -40 … +85°C
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Possible malfunction of the sensor when used in systems with highly
interference-prone components such as frequency inverters
Recommended wiring:
•Use single shielded sensor cable with twisted pair conductors for power supply
and signal output.
•Connect the cable shield to ground on one side of the control cabinet. Connect
the shield connection over a large area using cable clamps before or at the cable
entry into the control cabinet. When preassembled cables are delivered, the
screen is not connected to the housing on the sensor side.
•Do not install sensor cables close to power conductors such as motor or
contactor control cables (use separate cable ducts for signal and power cables).
•Install the cables in metal cable ducts connected to ground.

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Combined displacement and inclination sensors - WBT Series
Version 2.1.0
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4 Maintenance and disposal
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4.1 Maintenance and repair
Risk of crushing and cutting injury due to pre-tensioned spring being released
from housing when opened!
•Do not open the sensor.
•Due to possible risk of injury by improper handling, we strongly advise against
repair attempts.
The measuring tape must be cleaned regularly to avoid malfunctions.
Check sensor regularly for possible damage:
Inspection of … Measures
Integrity of housing Send damaged sensor to ASM for repair
Integrity of connector, cable Replace damaged parts resp. send sensor to ASM for repair
Mounting elements Tighten mounting parts with recommended torque, if applicable use
bolt adhesive
Measuring tape Damaged tape, (e.g. bended tape): send sensor to ASM for repair
Opening the following sensors will cause damage and void the warranty:
•positape® WBT61
•positape® WBT85
•positape® WBT21
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Calibration
The recommended calibration interval is 1 year.
Test protocol and traceable calibration certificate (ISO9001 / ISO10012) is available on request.
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4.2 Disposal
Disposal according to applicable government regulations.
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5 Output specification
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5.1 Measurement signal and range
Digital absolute
Absolute encoder
Measurement range corresponds to a digitally coded number (resolution eg. 10 steps / mm).
Position 0% 30% 100%
Measurement value
(example)
0 steps 3,000 steps 10,000 steps
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Combined displacement and inclination sensors - WBT Series
Version 2.1.0
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5.2 Digital interface CANopen
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MCANOP, CANOPR CAN specification ISO 11898, Basic and Full CAN 2.0 B
Communication profile CANopen CiA 301 V 4.02, Slave
Encoder profile Encoder CiA 406 V 3.2
Error Control Node Guarding, Heartbeat, Emergency
Message
Node ID Adjustable via LSS or SDO, default: 127
PDO 3 TxPDO, 0 RxPDO, no linking, static
mapping
PDO Modes Event-/Time triggered, Remote-request, Sync
cyclic/acyclic
SDO 1 Server, 0 Client
CAM 8 cams
Certified Yes
Transmission rate 50 kBit bis 1 Mbit, adjustable via LSS or
SDO, default: 125 kBit
Bus connection M12 conncector, 5 pin
Integrated bus terminating
resistor
120Ω adjustable by the customer
Bus, galvanic isolated no
Specifications Excitation voltage 8 ... 36 V DC
Excitation current 20 mA typical at 24 V DC
40 mA typical at 12 V DC
80 mA max.
Measuring rate 0.5 kHz
Stability (temperature) ±50 x 10-6/°C f.s. (typical)
Repeatability 1 LSB
Operating temperature See specification of the respective sensor
Protection Reverse polarity, short circuit
Dielectric strength 1 kV (V AC, 50 Hz, 1 min.)
EMC EN 61326-1:2013

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Signal wiring
Connector M12, 5 pin
View to the sensor
connector
Output signals Connector pin no.
Shield 1
Excitation + 2
GND 3
CAN-H 4
CAN-L 5
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CANopen – Set up (MCANOP)
Download
•A detailed specification of this interface can be downloaded from the ASM website:
www.asm-sensor.com/en/downloads.html > Configuration files
Risk of injury by unexpected machine movement
•Change parameters only when machine is in a safe condition!
•Changing parameters may cause unexpected machine movement.
•Changing parameters may influence dependent parameters e.g. changing the
resolution may have influence on position of CAM switches.
•Precautions have to be taken to avoid damage to human and machine parts!
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CAN-Bus wiring
Connect the device by a T-connector to the CAN trunk line. Total length of stubs should be minimized. Do
not use single stub lines longer than 0.5 m. Connect terminating resistors 120 Ohm at both ends of the
trunk line.
Termination resistor T piece CAN cable
sensor
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Combined displacement and inclination sensors - WBT Series
Version 2.1.0
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Reliability Characteristics
Models with magnetic
encoder
WBT61, WBT85, WBT21
Output single-channel
MCANOP CAN-BUS (CANopen)
dual-channel
MCANOPR CAN-BUS, redundant (CANopen)
Characteristics Device type B
Life period (electronics) MTTFd320 years / channel*)
Probability of failure PFH (λDU) 350 Fit / channel
Life period (mechanics) B10 5*106cycles (draft)
Probability of failure (mechanics) λMECH 0,1 * Ch/ B10
Ch= cycles per hour
Working life 10 years
Calibration intervall annually
Operating conditions Pull-out speed (max) 1 m/s
Pull-in speed (max) 1 m/s
Assembly No deflection
Standards Failure rate of electronic components
(Siemens)
SN 29500
*) = Reference Conditions: Reference Supply Voltage UBREF= 24 V, Reference Temperature ϑREF= 60 °C
=== En de d er Li st e für T ex tm ar ke I nh al t = = =

ASM Automation Sensorik
Messtechnik GmbH
Am Bleichbach 18 - 24
85452 Moosinning
Germany
Tel. [phone]
Fax [phone]
[e-mail]
© ASM Automation Sensorik Messtechnik GmbH, 2020
All rights reserved. Subject to changes without notice. See protection note DIN34.
ASM Sensors, Inc.
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Elmhurst, IL 60126
USA
Tel. [phone]
Fax [phone]
[email protected]
ASM Sales Office UK
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Measham, Derbs DE12 7HR
United Kingdom
Tel. [phone]
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[e-mail]
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