Allen-Bradley 442L-SFZNMN, User Manual

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82 Rockwell Automation Publication 442L-UM005B-EN-P - April 2017
Chapter 10 Diagnostics
Extended Diagnostics
The SCD software is supplied with the devices. It allows you to narrow down
the problem if the error is non-specific or if you experience usage downtime
problems. Find detailed information in the online help for the SCD software.
Short circuit to 0V at OSSD connection 1 Check the wiring for short circuit to 0V.
Overcurrent on OSSD connection 2 • Check the switching element connected (contactor, relay). Replace, if necessary.
• Check the wiring for short circuit to 0V.
Short circuit to 24V at OSSD connection 2 Check the wiring for short circuit to 24V.
Short circuit to 0V at OSSD connection 2 Check the wiring for short circuit to 0V.
Short circuit between OSSD connection 1
and 2
Check the wiring and rectify the error.
General OSSD wiring error Check the complete wiring of the OSSDs.
The SafeZone Mini device is receiving no
measured values within a range of at
least 90° (measuring range maximum
29.9 m (98.1 ft), it is not detecting any
obstacles such as building walls.
For the correct function of the safety laser scanner, always verify that measured values are received within a
range of 90°; this range can be moved as required within the scan range.
Device is faulted. • Check whether an external light source, for example, headlight, infrared light sources, stroboscopic light, or
sun is affecting the SafeZone Mini device.
• If necessary, remount the device.
Temperature error. The operating
temperature of the SafeZone Mini device
has exceeded the permissible range.
Check whether the SafeZone Mini device is operated as per the permissible ambient conditions.
Invalid configuration of the EDM. Verify that the machine-side EDM is connected correctly.
Undervoltage of the supply voltage Check the power supply or the connecting cables.
There is a short circuit between the input
for the control switch for restart or reset
and another input or output.
Check the wiring for cross-circuits.
Park/stand-by mode, the OSSDs of the
SafeZone Mini device are in the OFF state;
the laser is deactivated.
No error. If the criteria for the park mode or the stand-by mode are withdrawn, readiness for operation is
reestablished.
If the display does not go off:
Test the levels at the universal I/O and at the control inputs that switch to the monitoring case with park mode.
Optics cover calibration active. No error.
Window for light output on the optics
cover contaminated
Clean the window for the light output on the optics cover.
and
Optical saturation of the contamination
measurement (there may not be an
optics cover fitted)
Check whether an external light source, for example, headlight, infrared light source, stroboscopic light, or sun is
affecting the SafeZone Mini device.
Or:
• Fit the new optics cover.
• Then, perform optics cover calibration.
Table 15 - Error and Status Indication on the Seven-segment Display
Display Possible Cause Corrective Action
IMPORTANT If you have problems during troubleshooting, contact Rockwell Automation
support. Keep a copy of the results of the diagnostics at hand.