Festo SDAS-MHS Manuale utente
8091014
SDAS-MHS
Position transmitter
8091014
2018-06
[8091016]
Description|Function,
Operating
Translation of the original instructions
2 Festo — SDAS-MHS — 2018-06
3Festo — SDAS-MHS — 2018-06
1 About this document................................................................................................... 5
1.1 Further applicable documents...................................................................................... 5
2 Safety........................................................................................................................... 5
2.1 Intended use................................................................................................................ 5
2.2 General safety instructions........................................................................................... 5
2.3 Area of application and approval.................................................................................. 5
2.4 Training of qualified personnel..................................................................................... 5
3 Product overview......................................................................................................... 6
3.1 Design........................................................................................................................... 6
3.2 Characteristics.............................................................................................................. 7
4 Function........................................................................................................................7
4.1 Cylinder switch operating mode................................................................................... 8
4.1.1 Cylinder switch function..........................................................................................9
4.2 Position transmitter operating mode (IO-Link).............................................................. 10
4.2.1 Cylinder switch function..........................................................................................11
4.2.2 Window comparator................................................................................................12
4.2.3 Hysteresis comparator............................................................................................13
4.2.4 Switching logic, normally open (NO) and normally closed (NC)...............................14
4.3 Additional information on the operating modes........................................................... 14
5 Installation.................................................................................................................. 16
5.1 Electrical installation.................................................................................................... 16
5.2 Mechanical installation................................................................................................. 17
6 Commissioning............................................................................................................ 17
6.1 Cylinder switch operating mode................................................................................... 18
6.1.1 Activating set-up mode...........................................................................................18
6.1.2 Set switching points................................................................................................19
6.1.3 Changing the configuration of the switching outputs..............................................19
6.1.4 Menu structure....................................................................................................... 20
6.2 Position transmitter operating mode............................................................................ 21
7 Operation..................................................................................................................... 21
7.1 Cylinder switch operating mode................................................................................... 21
7.1.1 LED display............................................................................................................. 22
7.1.2 Reset to factory setting...........................................................................................22
7.2 Position transmitter operating mode............................................................................ 22
7.2.1 LED display............................................................................................................. 22
7.2.2 Reset to factory setting...........................................................................................23
8 Fault clearance............................................................................................................ 23
8.1 Diagnostics via LED...................................................................................................... 23
8.2 General malfunctions................................................................................................... 24
9 Disassembly................................................................................................................ 24
Table of contents
10 Technical data.............................................................................................................. 25
10.1 General..........................................................................................................................25
10.2 IO-Link...........................................................................................................................26
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5Festo — SDAS-MHS — 2018-06
1 About this document
This document describes the use of the above-mentioned product.
1.1 Further applicable documents
All available documents for the product èwww.festo.com/pk.
2 Safety
2.1 Intended use
The position transmitter SDAS-MHS is intended for monitoring the piston stroke. Only use the position
transmitter for suitable drives from Festo èwww.festo.com/catalogue. Avoid positioning magnetic
objects in close proximity to the position transmitter.
2.2 General safety instructions
– Only use the product in original status without unauthorised modifications.
– textvar object does not exist
– Take into consideration the ambient conditions at the location of use.
– Observe limit values è 10 Technical data.
Return to Festo
– Consult your regional Festo contact.
2.3 Area of application and approval
NOTICE!
CE declaration of conformity èwww.festo.com/sp.
2.4 Training of qualified personnel
Installation, commissioning, maintenance and disassembly should only be conducted by qualified per-
sonnel.
About this document
3 Product overview
3.1 Design
1Connecting cable
2M8 plug, rotatable
3Red LED: status display
4Yellow LED: switching status display
5Marking: centre of the sensing range
6Capacitive operating key
7Retaining screw
Fig. 1 Design of SDAS-MHS
Product overview
6 Festo — SDAS-MHS — 2018-06
3.2 Characteristics
Characteristic Value Description
Position transmitter SDAS-
Sensor version M Insertable in slot
Sensor principle HS- Hall sensor
Measuring range M40- Typically up to 40mm
Nominal operating voltage 1 24VDC
Display L- LED
Electrical output 1 PNLK- PNP or NPN or IO-Link
Electrical output 2 PN- PNP or NPN
Cable characteristic E- Suitable for use with energy chains/robots
0.3- 0.3mCable length
2.5- 2.5m
Outgoing circuit –Axial
LE Open endElectrical connection
M8 M8 plug
Tab. 1 Overview of variants
4 Function
The position transmitter detects the magnetic field of the piston magnet and continuously senses the
piston movement in the sensing range. The position transmitter can be operated in one of the follow-
ing operating modes:
– Cylinder switch with 2 programmable switching points (standard operation)
è 4.1 Cylinder switch operating mode.
– Position transmitter with IO-Link communication
è 4.2 Position transmitter operating mode (IO-Link).
In the case of active IO-Link communication (IO-Link master required), the SDAS-MHS switches auto-
matically into the position transmitter operating mode.
Function
7Festo — SDAS-MHS — 2018-06
4.1 Cylinder switch operating mode
In the cylinder switch operating mode, 2 switching points can be programmed within the sensing
range.
– Operation using capacitive operating key
– Switching logic: normally open (NO)
– Output signal 24VDC (PNP or NPN)
– Marking on the housing indicates the centre of the sensing range.
1Electrical output 1 2Electrical output 2
Fig. 2 Application example: Cylinder switch operating mode
Function
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4.1.1 Cylinder switch function
Output signal Hysteresis
1Teach-in point
Fig. 3 Cylinder switch function
– The teach-in point is located in the centre of the switching window.
– The switching window and hysteresis are preset and cannot be changed.
Function
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4.2 Position transmitter operating mode (IO-Link)
In the position transmitter operating mode, programmed switching signals and the continuous posi-
tion values (digitally coded analogue values) are transferred.
– Programming via IO-Link
– Device description file IODD èwww.festo.com/sp.
– Capacitive operating key is deactivated.
– Cylinder switches or window comparators or hysteresis comparators can be programmed individu-
ally on 4 switching channels.
– The continuous position values are always transferred in parallel with and independently of the
position value output of the switching channels.
– Each channel can be set to be normally closed (NC) or normally open (NO).
– Data transmission is serially and digitally coded in the IO-Link protocol.
– Process data: 12 bit for position data and 4 bit for switching channels è 10 Technical data.
– Unshielded standard cables of up to 20m in length can be used.
– Parameters and functions in accordance with Smart Sensor profile
– Support for the optional functions “Block parameterisation” and “Data storage”
– The direction of increase of the process data values (PDV) can be inverted. As delivered: lowest
PDV at cable end
Output signal (PDV): direction of increase
inverted
Output signal (PDV): direction of increase
as delivered
1PDV (position data values)
2SSC1 (switching signal channel)
3SSC2
4SSC3
5SSC4
Fig. 4 Application example: Position transmitter operating mode
Function
10 Festo — SDAS-MHS — 2018-06
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