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Description of the device
4.6 SELECT / SET button
Requirement
• The device is in operation.
• The function "Restore Factory Defaults" is enabled for the "SELECT / SET" button.
Note
Reset despite disabled "SELECT/SET" button
If you have disabled the "Restore Factory Defaults" function for the "SELECT/SET" button in the
configuration, this does not apply during the startup phase, see section "Restoring the
factory settings (Page 66)".
If the function has been disabled in the configuration, it is only disabled on completion of the
startup phase.
Procedure
To reset the device to the factory defaults during operation, follow the steps below:
1. Switch to display mode A.
Display mode A is active if the LEDS "DM1" and "DM2" are unlit.
If the "DM1" and "DM2" LEDs are lit or flashing, you will need to press the "SET/SELECT"
repeatedly until the "DM1" and "DM2" LEDs go off.
If you do not press the "SELECT/SET" button for longer than 1 minute, the device
automatically changes to display mode A.
2. Hold down the "SELECT/SET" button for 12 seconds.
After 9 seconds,the "DM1" and "DM2" LEDs start to flash for 3 seconds. At the same time, the
port LEDs go on one after the other.
After you have held down the button for 12 seconds, the factory defaults are restored.
If you release the button before the 12 seconds have elapsed, the reset is canceled.
Enabling and disabling the button
In the configuration, you can enable or disable the button function.
Defining the fault mask
Using the fault mask, you specify an individual "good status" for the connected ports and the
power supply. Deviations from this status are displayed as errors/faults.
To define the fault mask, follow the steps below:
1. Switch to display mode D.
Display mode D is active if the "DM1" and "DM2" LEDs are lit green..
If another display mode is active, you will need to press the "SET/SELECT" button repeatedly
until the "DM1" and "DM2" LEDs are lit green.
2. Hold down the "SELECT/SET" button for 5 seconds.
After 2 seconds,the "DM1" and "DM2" LEDs start to flash for 3 seconds. At the same time, the
port LEDs go on one after the other.
After you have held down the button for 5 seconds, the current settings are stored as the
"good status".
If you release the button before the 5 seconds have elapsed, the previous fault mask will be
retained.
32
Operating Instructions, 03/2021, C79000-G8976-C306-10
SCALANCE XM-400
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