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Firmware version 1.10 - Document version 1.06 - eng
LTDVE1CH-40F | INSTRUCTIONS MANUAL
14.2.53. Register CUR_RED_DELAY0
The controller includes a current reduction feature that allows the automatic decrease of the current
in the light output when it is continuously driven for a time longer than a specified, programmed
amount.
This register defines the delay time for the activation of the current reduction feature for the light
output LD.
Allowed values are in the range from zero to 60000 and are expressed in ms, so the current reduction
delay can range from zero up to 60000 ms. A value of zero (factory default) disables the feature.
14.2.54. Register CUR_RED_VALUE0
The controller includes a current reduction feature that allows the automatic decrease of the current
in the light output when it is continuously driven for a time longer than a specified, programmed
amount.
This register defines the reduced current, in terms of percentage of the programmed regular current,
for the light output LD.
Allowed values are in the range from zero to 100 and are expressed in units of percentage, therefore
the reduced current can vary from zero up to the programmed regular current. A value of zero (factory
default) selects a reduced current of zero, effectively turning off the light output after the current
reduction delay has expired.
14.2.55. Register SOFTWARE_TRIGGER
Bit field [1:0] of this register contains two bits that can be used to issue up to two independent and
direct software triggers to the controller internal timing logic. The meaning of the bits is as follows:
•
Bit 0 issues software trigger SW1 when set to 1
•
Bit 1 issues software trigger SW2 when set to 1
Multiple software triggers can be issued at once by setting the relevant bits in the same Modbus
write of this register. The controller architecture guarantees that the software triggers are propagated
in parallel with the same latency. This register is self-clearing: any bits set to 1 are automatically
reset back to zero when the software trigger has been processed.
Bit field [15:2] of this register is unused. When writing these bits, they must be set to zero.
14.2.56. Register CONVERTER_MODE
The internal DC/DC converter can either operate in two modes: fixed voltage mode and autodetect
voltage mode. The actual operating mode is selected by this register.
In the fixed voltage mode, the output voltage of the DC/DC converter is simply set to the value
programmed in the
CONVERTER_MAXIMUM_VOLTAGE
register regardless of the actual voltages
developed on the light output when it is driven at the programmed current. The
CONVERTER_PRESET_VOLTAGE
register is overwritten with the same voltage value.
In the autodetect voltage mode, the output voltage of the DC/DC converter is gradually increased
from zero to the value programmed in the
CONVERTER_MAXIMUM_VOLTAGE
register. At each
step the light is flashed for 100 µs while the actual current is measured and evaluated. This process
is stopped as soon as the programmed current is produced in the light. At the end of the process,
the
two
converter
controlling
registers
CONVERTER_MAXIMUM_VOLTAGE
and
CONVERTER_PRESET_VOLTAGE
are overwritten with the final voltage value reached on the
DC/DC converter.
Allowed values for this register are in the range from 0 to 1 and are listed below. Avoid operation with
non-listed values.
