The <SET> button performs the following functions depending on mode:
Operating mode: Acknowledgment of signals
Test mode: Execution of a test function
The EFB300 external function box is in operating mode during operation. Operation of the EFB300 is indicated by steady illumination of the LED labeled "ACT".
If a tripped signal is present at an output (output is activated), the user can acknowledge the signal or reset the output. This can be done by various methods:
By application of a signal to the digital input of the EFB300
By brief actuation of the <SET> button on the EFB300
By actuation of the <ESC> button on the ETU
LED states in operating mode
Simultaneous flashing of all LEDs indicates that the EFB300 is defective.
All inputs and outputs can be activated or deactivated manually in test mode. This can be done to determine whether the digital outputs and the ZSI bus are functioning properly and wired correctly.
The LED labeled "ACT" flashes to indicate that test mode is active. The powerconfig software can also be used to test outputs.
Activating test mode and performing tests
In order to activate test mode, press the <SET> button for at least 2 seconds ① until all the LEDs for the outputs light up briefly ②. Test mode is activated when the LED labeled "ACT" starts to flash ③.
Press the <SET> button briefly.
LED "ZSI_OUT" flashes, the ZSI output is selected.
In order to activate the selected output, press the <SET> button for longer than 2 seconds.
The LED of the selected output changes from flashing to steady illumination to indicate activation of the selected output.
In order to deactivate the output again, press the <SET> button again for longer than 2 seconds.
The LED of the activated output will change from steady illumination to flashing. The output is deactivated, but still selected.
In order to select the next output, press the <SET> button briefly ①.
The LED of the next output starts to flash ②, the output is selected.
Repeat steps 3 to 5 in order to check the wiring of all digital outputs in succession.
Terminating test mode
If the <SET> button is not pressed for a period of three minutes after selection of an output, test mode is terminated automatically and the EFB300 reverts to operating mode.
After working through the entire menu structure (only the LED labeled "ACT" flashes), press the <SET> button for longer than 2 seconds.