16
TROUBLESHOOTING HINTS
Replacement 90 door panel mode
OCalls cannot be made.
w Remember that the system remains inactive for 45 seconds after connecting the power supply.
w Ensure that the backbone for the replacement Plus door panel is configured with address "0".
(The converter is factory set with backbone address "0").
w Check the connection of the converter (page 38 to 40) and its configuration (page 36).
w Check the 90 monitor of the installation with address "0" has been configured with another
free address (see page 36).
Backbone encoder mode (General door panels)
O Calls cannot be made from the general door panels.
w Remember that the system remains inactive for 45 seconds after connecting the power supply.
w Check if calls can be made from the inner door panels (if these exist).
w Ensure that the backbone for the converters has been correctly programmed (page 37) and
check their connection (pages 41 to 44) and their configuration (page 36).
w Check the configuration and codification (address) of the monitors (see page 36 and
).
w Check that the voltage between "+" and "-" terminals of the A-490/2 power supply, is 24 Vdc.,
if this is not the case, disconnect the power supply from the installation and measure again.
If it's correct now, it means there is a short circuit in the installation. Disconnect the power
supply from mains and check the installation.
w Check that the voltage between "+" and "-" terminals of the converter and the different
elements of the 90 installation is 24Vd.c, if this is not the case, check the power supply and
its connections.
w Check that the voltage between "+" and "-" terminals of the FA-Plus/C power supply is from
17,5 to 18,5Vd.c., if not, check the power supply and its connections.
OThe converter cannot be programmed.
w Check that the general coded panel is in configuration mode before setting the number 1 dip
switch to ON (see page 36) and the programming steps are correctly followed (page 33).
w Check autodiagnostic leds (see page 37).
w Check that the voltage between "+" and "-" terminals of the converter is 24 Vdc., if not, check
the power supply and its connections.
Backbone encoder mode (Coded panel)
O Calls cannot be made.
w Remember that the system remains inactive for 45 seconds after connecting the power supply.
w Ensure that the backbone for the replacement Plus coded panel is configured with address
"0".
(The converter is factory set with backbone address "0".).
w Check the converter's connection (page 45-46) and their configuration (page 36).
w Check the configuration and codification (address) of the monitors (see page 36 and
).
w Check that the voltage between "+" and "-" terminals of the A-490/2 power supply, is 24 Vdc.,
if this is not the case, disconnect the power supply from the installation and measure again.
If it's correct now, it means there is a short circuit in the installation. Disconnect the power
supply from mains and check the installation.
w Check that the voltage between "+" and "-" terminals of the converter and the different
elements of the 90 installation is 24Vd.c, if this is not the case, check the power supply and
its connections.
w Check that the voltage between "+" and "-" terminals of the FA-Plus/C power supply is from
17,5 to 18,5Vd.c., if not, check the power supply and its connections.
the
appropiate instruction book
the
appropiate instruction book