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2. FUNCTIONS
2.1 OPERATING MODES
FULL WAVE SWITCH
Depending on the digital set point signal the mains voltage is switched.
In the operating mode 1:1 almost no harmonics are created in the
mains frequency. Whole multiples of the mains periods are always
switched.
For commissioning etc, a reduced supply can be switched with the S1
switch or via the optional bus module, the control system thereby either
forces the switching of every 2. wave or an equal number of positive
and negative half waves.
In all operation modes d.c. components are avoided:
OPERATING MODE
1:1
1:2
1:3
1:5
2.1.1 DIGITAL SET POINT INPUTS
The Thyristor switch Thyro-S is equipped with two set point inputs
which are electrically isolated from the mains for triggering signals:
• Set point input 1
1
• Set point input 2
2.1.2 SWITCHING BEHAVIOUR
The Thyro-S can switch single or continuous full waves in the mains
voltage to the load. If a voltage of >3 V is fed into X22.1 the following
mains period is switched.
If a full wave is to be switched to the load, the trigger signal ON must
be switched on not later than 1 ms before the mains voltage crossover
otherwise it remains inactive. No new full wave is triggered if the trigger
LOAD VOLTAGE
every mains full wave
(nom. oper. mode, default setting)
every 2. mains full wave (DC-free)
every 3. mains full wave (DC-free)
every 5. mains full wave (DC-free)
logic input 0-24 V DC (R
via bus module
> 3,3 kΩ) IN: U
> 3 V
i
IN
15
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