gefran ONP1-A Series User manual

185193C_Installation Manual_ONP1-A / WPG-A_11-2018_ENG
Series ONP1-A / WPG-A
Installation Manual
cod. 85193C Edition 11/2018
Index
GENERAL PRECAUTIONS �������������������������������������������������������������������������������������������������������������������������������������������������������2
ONP1-A/WPG-A SERIES – CORRECT USE OF INSTALLATION BRACKETS �����������������������������������������������������������������������2
ONP1-A/WPG-A SERIES – CORRECT USE OF THE PCUR034 FLOATING PCUR039/PCUR202 ��������������������������������������3
INSTRUCTIONS FOR ELECTRICAL INSTALLATION OF MAGNETOSTRICTIVE TRANSDUCERS��������������������������������������3

285193C_Installation Manual_ONP1-A / WPG-A_11-2018_ENG
GENERAL PRECAUTIONS
• The transducer must be installed away from sources of magnetic fields, both static and 50 Hz (electric motors, solenoids,
etc�)�
• The transducer connection cable must be wired separately from power cables and/or solenoid controls, drives, or remote
switches�
• The line used for power supply must be dedicated to the transducers or must be drawn directly from the power terminals
and as near as possible�
•Whenchoosing a cursor for the ONP1-A/WPG-A profile magnetostrictive transducer,rememberthatthetransducerʼs
cursor is a magnet� Therefore, if there are iron filings or small magnetic metal fragments in proximity of the transducer,
avoid the use of sliding cursors, as there would be a risk of material accumulation on the cursor, creating problems for
sliding�
Use a floating cursor instead�
ONP1-A/WPG-A SERIES – CORRECT USE OF INSTALLATION BRACKETS
Brackets (2 brackets for every kit)
Steel bracket, interaxis 42�5mm
P K I T
Steel bracket, interaxis 50mm
590
591
Brackets code Interaxis (i) Screw (V) Dimension (A)
PKIT 590 42�5 M4 56
PKIT 591 50 M5 63.5
Use PKIT59x brackets (to be ordered separately) to correctly install the ONP1-A/WPG-A magnetostrictive transducer�
Choose the best model based on the material, on the attachment holes interaxis and on the dimension of the screws
included in the package� Each package has two brackets� We recommend to install one bracket every 250-300 mm�
To guarantee the correct electrical insulation of the transducer from the machine, always assemble the brackets using the
plastic whashers provided in the package as shownin the fig� a and fig� b�
To prevent damages to the isolating bushes and to the brackets, tighten the fastening screws with a maximum torque of
1�1 Nm�
fig� a fig� b

385193C_Installation Manual_ONP1-A / WPG-A_11-2018_ENG
ONP1-A/WPG-A SERIES – CORRECT USE OF THE PCUR034 FLOATING PCUR039/PCUR202
Under standard conditions (Fig� 1), the PCUR039/PCUR202 cursor must be installed on a support made of non-magne-
tic material (such as brass, aluminium, or AISI316 stainless steel)�
The installation kit, consisting of two screws, two nuts, and two washers (all made of brass), is included in the package�
The cursor (Fig� 2) must be installed with maximum attention to horizontal alignment with the transducer axis (maximum
tolerance is ± 2 mm), as well as to the distance from the transducer surface from 2 to 5 mm�
If there is no alternative to a magnetic sup-
port, itʼs necessary to prevent the support
from changing the magnetic field generated
by the cursor, because this could cause pro-
blems with the correct measurement of the
cursor position�
For this reason, a non-magnetic spacer must
be added between the cursor and the magne-
tic support (Fig� 3 - Sol� 1)�
The recommended spacer thickness is 15 mm�
If the application does not permit the installa-
tionofanon-magneticspacer,itʼspossibleto
install the cursor directly on the magnetic support, being careful not to let the support make direct contact with the
part of the cursor containing the magnet (Fig� 3 - Sol� 2)�
Fig� 3
Non-magnetic
Support
Magnetic
Support
Support
magnetic
Non-magnetic
spacer
Cursor Cursor Cursor
Screws Screws Screws
Sol.1 Sol.2
Max
12 mm
INSTRUCTIONS FOR ELECTRICAL INSTALLATION OF MAGNETOSTRICTIVE TRANSDUCERS
The magnetostrictive transducers conform to the following directives:
- Electromagnetic Compatibility EMC 2014/30/EU
- RoHS 2011/65/EU
For a correct electrical installation of the transducers, refer to the “Manual for Electrical Installation of Magnetostrictives�”
The manual and certificates of conformity can be downloaded from the website www�gefran�com�
16�3 2�5
30
12
Model + 154
100�5 CE + Model 53�5
Fig� 1 Fig� 2
37,6
14 14
4,8
32
16,2 5
4,3
ø

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viaSebina,74-25050PROVAGLIOD’ISEO(BS)-ITALIA
tel� 0309888�1 - fax� 0309839063 Internet: http://www�gefran�com