Fault Diagnostics
23
Building Technologies
FL-III Maintenance and Repair
CPS Fire Safety
08.2012
The power supply is faulty or there is a defect in one of the modules that are
to be supplied
Check the power supply separated from the modules that are to be supplied:
–
Disconnect the power supply cable (disconnect the device from the mains
voltage). Loosen the power supply from the floor of the housing and disconnect
it from the connection to the mainboard by pushing it to the side (see chapter
5.3.3 for this procedure).
–
Connect the power supply cable and switch on the power switch.
–
Check whether the green “Power On” LED on the power supply panel is lit. If the
LED is not lit, then the power supply is faulty. A possible cause could be a defect
in the power supply or a defect in one of the modules that are to be supplied.
–
Check whether the correct supply voltage is present between the two outer pin
rows (red respectively black lead) of the transparent input connector for the
power supply. If there is no voltage present, then the fuse has been blown again
(check) and this means that at least the primary circuit of the power supply is
faulty. A possible cause could be a defect in the power supply; it is less likely
that a defect is present in one of the modules that are to be supplied.
–
Replace the power supply and repeat the check.
4.1.2
The controller does not show a response, LED “Power On” is lit
Observations:
When the controller is switched on: the LED “Power” on the front panel of the
device is not lit, however the LED “Power On” on the rear panel of the device is
lit.
No LED’s light up for approx. 3 seconds on the front panel of the device when
the controller is switched off and subsequently switched on and no signal tone is
audible. However, the LED “Power On” on the rear panel of the device is lit.
Possible causes and solving the problem
Digital module or LED display defective
–
Check whether communication can be established with the controller: connect
the controller with a USB cable or an Ethernet cross-over cable with a PC /
notebook on which the FibroManager has been installed. Should the controller
be displayed in the “Quick Start” dialog and can be added to the tree view of the
FibroManager, then the corresponding interface is functional.
–
Read out the event memory and check for error messages. Should a device
error be present, please contact the technical support and if required, send in
the controller for repairs.
–
If the front LED display does not work, however the controller is functional, then
check the internal cabling to the LED display. Send in the controller for repairs.