Installation manual

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SIMPLEX Fault Assistance Guide RevA
29 April 2009
19. RZDU x
This displays the current status of any RZDU which has an off-normal condition.
20. Net msg discard
This occurs only with network systems. The local system discarded a message that
was repeatedly sent to another device on the network that did not acknowledge it. To
allow other messages to be sent on the network, the unacknowledged msg was
discarded. This should occur only in cases of extreme network loading, if the system
addressed does not exist or is off line, or if network cables are broken.
21. Net port hw fault
This indicates a hardware fault with the serial port interfacing to the network. Call the
service company.
22. Clock crystal Timebase check fail
This error message occurs only at startup and indicates the frequency of the clock
chip on the Controller is out of tolerance to the microprocessor. The Controller will
restart and try the test again.
23. Clock register write read fail
A test of the Controller time/date clock registers has failed. The Controller will restart
and try the test again.
24. Clock chip RAM write read fail
A test of the Controller’s clock RAM has failed. The Controller will re-start and try the
test again.
25. Shift reg clocking fault
This is the same fault as “Shift register bus fault” above. However, this fault occurs
only at startup or on exit from programming mode when the panel is trying to
determine what modules are present.
26. Battery is low
This message indicates the battery voltage is low. When PSU faults are inhibited for
24 hours, this message will still appear in a system fault recall if the voltage is low
even though it is not creating a system fault.
27. Battery connection fail
This message indicates the battery is not connected, but may occur with the battery
connected if the battery is faulty or has a low charge. When PSU faults are inhibited
for 24 hours, this message will still appear in a system fault recall if the battery
appears to be not connected even though it is not creating a system fault.
28. Battery capacity low
This message indicates an automatic battery test failed, i.e. the battery has a low
charge.