Aventics SM6, Руководство по эксплуатации

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5 AVENTICS | SM6 | R412013038–BDL–001–AH
3 Device Description
The SM6 is a non-contact analog position sensor that
provides an output signal proportional to the cylinder
stroke. The magnet integrated in the cylinder piston
generates a magnetic field that acts on the sensor elements
that are arranged along the longitudinal axis. A special
evaluation of the signals generated by the sensor
determines the current position of the cylinder piston (for
details, see Technical Information - R412018764). The zero
point and end value of the measurement range can be
adjusted to the stroke to be measured via a teach-in button.
The measurement range is set to the entire measuring
length of the respective sensor in the default setting.
Assembly of the position measuring sensor is supported by
an in-range display (LED lights up when the magnetic piston
is within the measurement range).
The SM6 can be used specifically for measuring a section of
the entire cylinder stroke (partial stroke sensor). If the
magnetic piston leaves the sensor’s measurement range,
the output signal is frozen at the most recently measured
value until the magnetic piston again enters the
measurement range.
As analog output, a voltage and current signal is made
available (see Fig.
)
4 Delivery Contents
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SM6 distance measuring sensor (model 32, 64, 96, 128,
160, 192, 224, or 256)
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Hexagon screwdriver wrench size 1.3
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Operating instructions
5 Assembly and
Commissioning
Assembling the SM6 distance
measuring sensor
1. Insert the sensor ( 1 ) into the T-slot ( 2 ) from above using
a light swivel motion ( 3 ).
2. Connect the distance measuring sensor to a suitable
power supply (see Technical Data and Fig.
, ).
The sensor has both an analog voltage output (0
to
10 V)
and a current output (4 to 20 mA).
The sensor only activates the output that is switched.
During assembly, the axial orientation of the sensor can be
supported by the in-range display. The LED flashes or lights
up when the magnetic piston is in the position measuring
sensor’s permissible measurement range.
3. Move the sensor in axial direction until it records the
entire stroke range to be measured.
4. Fix the sensor in the adjusted position by tightening the
two mounting screws equally with the defined
tightening torque (MA = 0.25 + 0.1 Nm).
5. Check whether the sensor records the stroke range to
be measured (LED/in-range display = must light up).
6. If this is not the case, the sensor must be re-aligned
axially.
Commissioning the SM6 distance measuring
sensor
Commissioning may only be carried out by qualified
electrical or pneumatic personnel or an instructed person
under the direction and supervision of qualified personnel
(see also “Personnel qualifications”).
Adjusting the measurement range
Adjusting the measurement range as described below is
optional.
1. Move the magnetic piston to the position for the zero
point.
2. Check whether the LED is illuminated (magnetic piston
is in the measurement range).
3. Press the teach-in button until the LED flashes (t = 3 s).
WARNING
Danger of injury if assembled under pressure!
Injuries and damage to the device or system components
may occur if the pressure is not switched off before
beginning assembly.
O
Make sure that the relevant system part is not under
pressure before you assemble the product.
Due to the magnetic measuring principle, observe
the following:
Strong external magnetic fields (e.g. welding
devices) or ferromagnetic add-on parts located in
the area of the proximity switch could possibly
impair the position measuring sensor function.
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3 4
An exact axial alignment of the position measuring
sensor to the stroke range to be measured is the
prerequisite for all further steps.
WARNING
Risk of uncontrolled actuator movements when the
pneumatics are switched on!
There is a danger of personnel injury if the system is in
an undefined state.
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Put the system in a defined state before switching it
on.
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If you do not teach-in the measurement range,
the maximum possible measurement range will
be used as the default.
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If the magnetic piston is outside of the
measurement range during the adjustment
process, this is indicated by an increased
flashing frequency and the teach-in process is
aborted.
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A teach-in process that is not completed
successfully is aborted after 90 s (timeout). The
most recently set measurement range is
maintained.
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