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2.1.1 Digital set point inputs
The Thyristor switch Thyro-S is equipped with two set point inputs which are electri-
cally isolated from the mains for triggering signals:
• Set point input 1
1
logic input 0-24V DC (R
i
> 3.3 k
) IN: U
IN
> 3V
• Set point input 2
via bus module
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 chapter 3.2.
Monitoring of the mains voltage
The limiting values of the voltage are -57% for undervoltage monitoring and +10%
for overvoltage monitoring. This produces the following absolute limiting values:
Type
Undervoltage
Overvoltage
230V
99V
253V
400V
172V
440V
500V
215V
550V
2.2.1 Equipment temperature monitoring
The control board is equipped with a temperature monitor.
If a fault occurs, the LED blinks.
2.2.2 Ventilator monitoring
The separately ventilated power controllers (F) are fitted with thermal monitoring.
The temperature of the heat sink is measured. In case of a temperature overrange
a fault indication (red LED) ensues.
1) see also chapter 4.4 Digital set point input
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