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3.5 Faults and Troubleshooting
Faults can occur during the self-check, setting-to-work, purge as well as during normal operation.
For the installation, maintenance and cleaning of the units, it is absolutely
necessary to observe the applicable ordinances and provisions concerned
with explosion protection (VDE 0160, VDE 0165 or EN 60079-14, EN 50014-
50039) as well as the Accident Prevention Regulations (UVV).
Installation, maintenance and cleaning of the units must only be performed
by persons trained and authorized for this purpose, insofar as they are
familiar with the units.
If it can be assumed that safe operation is no longer possible, switch off the
unit and secure it against renewed switching-on.
The faults described in Table 1 are detected by the system during the self-check. These faults stop
the system from starting the purge process.
Table 1: Faults detected during the self-check
Fault
number
Explanation Remedy
01 Checksum error – EPROM defective Report the fault to the
manufacturer´s service department
02 Remote control is defective Exchange the remote control
03 EEprom fault-EEprom is defective. Values of the
same variable differ in all three Eeproms
Report the fault to the
manufacturer´s service department
04 A/D converter DSS1 is defective. Conversion not
in the value range 0 to 25.0 mbar
Report the fault to the
manufacturer´s service department
05 A/D converter DSS2 is defective. Conversion not
in the value range 0 to 25.0 mbar
Report the fault to the
manufacturer´s service department
06 A/D converter DSS3 is defective. Conversion not
in the value range 0 to 25.0 mbar
Report the fault to the
manufacturer´s service department
07 Fault in the output relay. Output relay does not
switch at all, or incorrectly
Report the fault to the
manufacturer´s service department
08 Malfunction in multiprocessor communication Report the fault to the
manufacturer´s service department
09 A processor is defective Report the fault to the
manufacturer´s service department
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