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2. Functions
2.1 Operating modes
Full wave switch
Depending on the digital set point signal the mains voltage is swit-
ched. 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
Load voltage
1:1
every mains full wave
(nom. oper. mode, default setting)
1:2
every 2. mains full wave (DC-free)
1:3
every 3. mains full wave (DC-free)
1:5
every 5. mains full wave (DC-free)
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
logic input 0-24V DC (R
• Set point input 2 via bus module
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 >3V is fed into X22.1 the following
mains period is switched.
> 3,3 k h )
IN: U
> 3V
i
IN
60
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 cross-
over otherwise it remains inactive. No new full wave is triggered if the
trigger signal is interrupted up to 1.25 ms before the crossover of the
full wave.
With a pulse trigger the pulse duration must be min. 1 ms.
2.2 Indications
The LEDs on the front signal the following states:
• ON GREEN
operating indication,
power supply controller device
Blinking indications are described in table 2.
2.3 Monitoring
2.3.1 Monitoring of the mains voltage
The limiting values of the voltage are -57% for undervoltage monito-
ring and +10% for overvoltage monitoring. This produces the follo-
wing absolute limiting values:
Type
Undervoltage
230V
99V
400V
172V
500V
215V
NOTE
The devices may only be operated up to the undervol-
tage limit if he electronics are supplied by an ext. 24V
voltage. If the undervoltage limit is undercut the pulse
lock is activated and realy K! is released (default).
1) See also chapter 4.4 digital set point input
Overvoltage
253V
440V
550V
61
EN
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