The Menu
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Application example: Using the actuator output to control lights
In fish farming, it is often useful to simulate the daylight. With the fuction „time control“ you
can use for example 24 V DC LED lights which can be controlled in their luminescence. Let´s
assume that the LEDs are connected to the 24 V DC output port OUT 1 and that the lights
should start at 7 a.m. in the morging, increase their luminescence in 30 min to the maximum
of 80%. The decrease starts at 6:30 pm and the day length should be increased by 2 min per
day. Set the following menu items:
Function: Time-controlled
Operating time:
Start time: 7:00
Stop time: 19:00
Output signal:
Output strength: 80%
Start-Up Duration: 30:00 [mm:ss]
Time-controlled
Mode: Daylight Mode
Daily change: 2 min
By setting the operation time in the daylight mode, you define when the lights start and end
at the first day. At the second day, it starts 1 min earlier and stops 1 min later.
Special additional functions:
If the plug is defined as “Filter Motor” the special additional function “Var. freq. drive” can be
used to control variable frequency drive (VFD) with a 4-20 mA signal and the activation with
the 24 V DC signal. This function is designed to control 230 V AC and 380 V AC filter motors.
SENECT offers VFDs.
Output signal
The output signal can be configured in three different ways:
1.
The strength of the signal: The output signal of OUT 1 and two are 0-24 V DC as pulse
width modulation, 4 – 20 mA and 0 – 10 V DC signal. With the strength you can set in
% how strong the output signal is, e.g. 100% means 24 V DC, 20 mA and 10 V, while
50% are 12 V DC, 12 mA and 5 V respectively.
2.
Start-up duration: To increase and decrease the output signal slowly (ramp), the time
of the start-up ramp can be set here. E.g. when you choose here 10 s, then the output
strength will be linearly increased over 10 s to reach its maximum value (set by “Output
strength”)
Summary of Contents for AQUACULTURE AQC-A1-333-150
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