Power Up Self Tests - EKE-Electronics CVB1621A Technical Manual

Troubleshooting
System reset by watchdog
The module firmware and applications are monitored by the watchdog device. In case
the application does not refresh the watchdog counters, the module and also the
system will be resetted.
Green ST LED unlits and red SE led lits when watchdog resets and restarts system.
Yellow UE LED is unlit when firmware is ready to run.
Figure 4.4: System reset by watchdog
Power input supply down
The PSV module informs the system that power input supply is down and the system
shuts down in a controlled manner.
Green ST LED is unlit and red SE led is lit.
Red SE LED unlits when no power is available to module.
Figure 4.5: Power down
No LEDs ON or glowing very faintly
In case there are no LEDs ON in the CVB module or the red LED is glowing very faintly,
first check that the PSV Power Supply Module LED is ON and that the rack is receiving
proper power supply. In this case the CVB module's fuse might be blown and it has to
be replaced with a spare one.

4.4 Power up self tests

®
All EKE-Trainnet modules have passed a production test procedure and are thus
guaranteed to function properly. The module performs self tests after the reboot. The
Boot message can bee generated in the console session.
When the software has started:
1 Check the module information and firmware versions of the CVB and master
module (CPG/CPS).This can be checked from the output when rebooting the CVB
module ( refer to the boot message example below).
2 Compare this information with the change notices to make sure that the firmware
versions are correct.
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CVB1621A and CVB2456A Technical Manual, ver. 3.00
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