Error handling and diagnostics
CX9000 / CX9010 39Version: 2.6
LEDs for K-Bus diagnosis
Error code Error code argument Description Remedy
Persistent,
continuous
blinking
EMC problems - Check power supply for
overvoltage or undervoltage peaks
- Implement EMC measures
- If a K-Bus error is present, it can
be localised by a restart of the
power supply (by switching it off
and then on again)
1 pulse 0 EEPROM checksum
error
Revert to the manufacturer’s
setting
1 Code buffer overflow Insert fewer Bus Terminals. The
programmed configuration has too
many entries in the table
2 Unknown data type Software update required for the
power supply
2 pulses 0 Programmed
configuration has an
incorrect table entry
Check programmed configuration
for correctness
n (n > 0) Table comparison (Bus
Terminal n)
Incorrect table entry
3 pulses 0 K-Bus command error - No Bus Terminal inserted
- One of the Bus Terminals is
defective; halve the number of Bus
Terminals attached and check
whether the error is still present
with the remaining Bus Terminals.
Repeat until the defective Bus
Terminal is located.
4 pulses 0 K-Bus data error, break
behind the power supply
Check whether the n+1 Bus
Terminal is correctly connected;
replace if necessary.
n Break behind Bus
Terminal n
Check whether the Bus End
Terminal 9010 is connected.
5 pulses n K-Bus error in register
communication with Bus
Terminal n
Exchange the nth bus terminal
9 pulses 0 Checksum error in Flash
program
Revert to the manufacturer’s
setting
n (n>0) Bus Terminal n is not
consistent with the
configuration that existed
when the boot project
was created
Revert to the manufacturer's
setting which will clear the boot
project.
14 pulses n nth Bus Terminal has the
wrong format
Start the power supply again, and
if the error occurs again then
exchange the Bus Terminal.
15 pulses n Number of Bus
Terminals is no longer
correct
Start the power supply up again.
16 pulses n Length of the K-Bus data
is no longer correct
Start the power supply up again.
Error code argument
The number of pulses indicates the position of the last Bus Terminal before the fault. Passive Bus Terminals,
such as a power feed terminal, are not included in the count.
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