Tx Port Settings - Victron energy SmartSolar MPPT 75/10 Manual

Setting the dimming speed to 9, for example, slows down the dimming speed to 15 minutes (9 seconds for each percentage
point of dimming x 100 percentage points = 900 seconds = 15 minutes.
Make sure that the TX port function is set to "Light dimming" mode (as described in point
this chapter) and connect a VE.Direct TX digital output cable to the PWM dim input of your LED driver.
Mid-point shift
The time of midnight is estimated based on solar activity, and depends on your geographical location. Daylight saving times can
cause a further deviation between the "solar" and the "clock" midnight. The Mid-point shift function will compensate for these
differences. Use 0 to disable the shift (default).
The Mid-point shift setting is only relevant when your streetlight setting program uses "Midnight" as a
switching moment.
Calculation Example:
For calculation we use a day of 1440 minutes, where Sunset is at 19:00 (1140 minutes) and Sunrise is at 6:25 (385 minutes):
• The night duration in minutes is: 1440m
• The degree of shift = time of sunset
42 minutes.
Example configuration
The selections which have been made on above screen image results in this program:
• At sunset - the light will be switched on for a fixed time
• Dim level at sunset - at Full brightness (100%)
• Keep lights on during - the duration has been set to 1h 0m
• Dim level at end - at the end of one hour the brilliance will be reduced to half (50%)
Also:
• At sunrise - the lighting will be adjusted before sunrise
• Time before sunrise - at 1h 0m before sunrise, the following adjustment will be made:
• Dim level - full brilliance will be restored (100%)

5.2.4. TX port settings

The VE.Direct-TX port can be used to send a signal to an external device. For example to send a PWM signal to dim a streetlight.
Be aware that changing away from the default setting while a
to be removed and the load output algorithm has to be configured via the
[21] instead.
To use the TX port, a VE.Direct TX digital output cable
Page 24
MPPT solar charger manual
(min/day)
-1140m(time to sunset) + 385m
(minutes)
+ half the duration of night
is needed.
(time to sunrise)
= 685m
(minutes) (minutes)
- length of day = 1140m + 342m - 1440m =
jumper link [14] is used, the jumper link will need
VictronConnect load output setting
Configuration and settings
1
at the beginning of