Rockwell Automation 442L SafeZone Singlezone & Multizone Safety Laser Scanner - Manual (Page 44)

R
SafeZone™ Safety Laser Scanner User Manual
42 10000073050, July 2011
Original instructions
10.5 Extended diagnostics
The SCD software supplied with the device includes extended
diagnostic options. It allows you to narrow down the problem if the error
is non-specific or if you experience usage downtime problems. Detailed
information to be found:
• In the online help function of the SCD software.
• In the user manual for the SCD software.
Section 11 — Technical specifications
11.1 Characteristics
Figure 63: Diagram of scanning ranges for various reflectances
11.2 OSSD response times
The total response time of your application is dependent on...
• The basic response time at the related resolution and the maximum
protective safety field range.
• The multiple sampling used.
• The OSSDs used.
Calculation of the total response time T S : T S = t B + T MFA
Where...
Short-circuit between OSSD
connection 1 and 2
² Check the wiring and rectify the
error.
General OSSD wiring error
² Check the complete wiring of the
OSSDs.
The SafeZone safety laser scanner is
receiving no measured values within
a range of at least 90° (measuring
range maximum 49 m), it thus is not
detecting any obstacles such as e.g.
building walls. ² For the correct function of the
safety laser scanner, always
ensure that measured values are
received within a range of 90°;
this range can be moved as
required within the scan range.
Device is saturated by infrared light
² Check whether the SafeZone
safety laser scanner is being
saturated by an external light
source, e.g. headlight, infrared
light sources, stroboscopic light,
sun etc.
If necessary, re-mount the
device.
Temperature error. The operating
temperature of the SafeZone safety
laser scanner has exceeded the
permissible range. ² Check whether the SafeZone
safety laser scanner is operated
as per the permissible ambient
conditions.
Invalid configuration of the EDM
² Verify that the machine-side EDM
is connected correctly.
There is a short-circuit between the
input for the control switch for
restarting or resetting and another
input or output. ² Check the wiring for short-
circuits.
Input signal for an undefined
monitoring case.
² Check the path of the vehicle.
Or:
² Check the work process on the
machine or equipment
monitored.
² If necessary, check the
configuration of the monitoring
cases with the aid of the SCD
software.
Incorrect sequence on switching the
monitoring cases
Incorrect operation of the control
inputs ² Check the operation of the digital
control inputs.
… Channel 1 to 6 of the contamination
measurement soiled
² Clean the front screen.
No front screen fitted or saturation by
infrared light of the
contamination measurement
² Refit the new front screen (then
perform front screen
calibration).
If at any time of the error a front screen
was fitted:
² Check whether the SafeZone
safety laser scanner is being
saturated by an external light
source, e.g. headlight, infrared
light source, stroboscopic light,
sun etc.
I/O module does not match the
configuration saved or vice-versa.
² Check whether the correct I/O
module has been used, and
replace if necessary.
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If you have problems during
troubleshooting, contact Rockwell
Automation support. Keep a copy of the
print out of the results of the diagnostics
at hand. IMPORTANT
Reflectivity [%]
Scanning range [m]
Black shoe leather
0.1
1
2
10
0.2 0.5 1 2 5 10 20 50
5
20
50
100
200
500
Mat black paint
Grey
c ardboard
White plaster
Writing pape
Reflectors > 2000%
Reflective
films > 300%
Protective safety field medium-range sensor head
Warning field medium-range sensor head