Original instructions, 3 replacing the i/o module – Rockwell Automation 442L SafeZone Singlezone & Multizone Safety Laser Scanner User Manual
Page 41
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SafeZone™ Safety Laser Scanner User Manual
10000073050, July 2011 39
Original instructions
² Insert the new seal —starting in the middle. During this process first
align the center markings on the sensor head (
and ) and seal (
and
).
Figure 61: Inserting the rubber seal
² First place the seal only lightly in the rounded sections of the seal groove.
In this way you will avoid stretching the seal.
² Only then press the seal home. The seal should not be stretched on
insertion.
Figure 62: Depth for pressing in the seal
The seal is pressed in far enough when the edge of the seal and the sensor
head are flush.
² It is necessary to check that the seal is seated evenly all the way around the
groove.
² Check whether the mirror on the motor is clean and remove any
contamination with an optic brush.
² Set a torque wrench to 0.7 N•m or 6.2 in•lbf (hand-tight) for the use of
installing screws.
² Take the new front screen from the packaging.
² Remove any remnants of packaging.
² Place the front screen on the rubber seal and insert the new mounting
screws
to with spacers (see Figure 61).
² Press the front screen on the front of the cover. During this process
tighten the front screws
to to the torque set.
² Then insert the rest of the screws to with spacers (see Figure 61)
and tighten using the torque wrench.
Re-commissioning the SafeZone safety laser scanner:
² Re-mount the SafeZone safety laser scanner correctly (see Section 4
“Installation and mounting” on page 18).
² Connect the SafeZone safety laser scanner system connector.
After power up the SafeZone safety laser scanner automatically reads
the saved configuration from the system connector (see Section 8.3
“Re-commissioning” on page 37).
9.3 Replacing the I/O module
IMPORTANT
If the front seal is not inserted correctly,
the front screen may be damaged. Do
not use any pointed or sharp tools.
Seal edge flush with
housing edge
Seal
Housing
ATTENTION
Always perform a front screen
calibration with the aid of the SCD
software after the replacement of the
front screen.
The level of contamination is measured
continuously during the operation of
the SafeZone safety laser scanner. For
this purpose the front screen
calibration must first be performed;
this then serves as a reference for the
contamination measurement (status =
not contaminated).
The front screen calibration may only
be performed immediately after the
replacement of the front screen.
Device symbol SafeZone multizone safety laser
scanner, command Service, Front screen calibration.
The new front screen must be free of contamination
at the time of the front screen calibration. The front
screen calibration should be performed at room
temperature (10…30°C (50…86°F)).
IMPORTANT
²
The I/O module is only allowed to be
replaced by specialist personnel in a
clean environment.
²
Mount the I/O module as per the
following instructions to ensure that
the housing is sealed to IP65.
ATTENTION
While replacing the I/0 module, the
equipment may start inadvertently.
Switch the entire machine/system off
line.
As a matter of principle, always isolate
the machine from the power supply
during all work on the machine and
safety laser scanner.
IMPORTANT
When the I/O module is dismantled,
advanced electronic components are
accessible. Protect these from
electrostatic discharge, contamination
and moisture.