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Firmware version 1.10 - Document version 1.06 - eng
LTDVE1CH-40F | INSTRUCTIONS MANUAL
11. Functions of INIT button
The INIT button is used either to restore the factory settings or to activate the firmware update
procedure.
To restore the factory settings, follow these steps:
1. Switch off the device and wait 30 seconds
2. Push and hold down the INIT button
3. Switch on the device
4. Release the INIT button
5. Wait 10 seconds
After the ten seconds interval the settings are restored to the factory values and the controller
resumes normal operation.
To activate the firmware update, follow these steps:
1. Switch off the device and wait 30 seconds
2. Push and hold down the INIT button
3. Switch on the device
4. Release the INIT button
5. Launch a firmware update (according to chapter 17) within 10 seconds.
Note the INIT button is sampled only once at power-up.
During the ten seconds interval, the RUN and ERR LEDs blink at a high rate to emphasize the
circumstance. In the meantime, the use of the RS485 serial interface is restricted to the firmware
update and the Modbus/TCP, Modbus/UDP, and HTTP protocols are not available.
The INIT button is concealed by a hole located between the USB port and the shell connector.
12. Pulse shaping logic
The light channel can be configured to output pulses based either on a discrete external trigger signal
or an internally-generated trigger signal. A wide variety of internal triggers can be produced by
configuring the internal pulse shaping logic.
This logic includes two pulse generators and several multiplexers. The pulse generators allow pulse
delay and width control down to 1 µs resolution. The multiplexers, organized as two routing matrices,
allow for the flexible selection of the pulse generators inputs and outputs. The pulse generators can
be excluded or bypassed when implementing continuous mode.
An output protection circuit, used to prevent the light from getting overheated and thus damaged, is
also included in the logic.
12.1. Diagram of internal logic
Figure 4: diagram of internal logic network
depicts the logic network built in the
controller.
