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Protector elements
- Power triacs·
- Protection of triacs and opto-triacs against overvoltages by Transil diodes
- Transfer of diagnostic information to the higher-level control system
Control modes
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Half-wave control: This is the control type in normal operation. Here the channel is controlled depending on the parameterized manipulated variable for each zero point. The manipulated variables are set in values from 0 to 100%. The reference base is 1 second.
With half-wave operation, it is possible to control loads with inrush current peaks of up to 15 Apeak.
Output power
- 9 power channels 400V/480V each (3 outputs each per phase)
- Rating per output max. 6400 W at 400 V or 7200 W at 480 V
- Rating per POM max. 57600 W at 400 V or 69120 W at 480 V
Ventilation
A fan is mounted on top of the power output module. It is supplied by the POM and is activated depending on the internal temperature.
Temperature monitoring
An NTC thermistor is installed in the device to monitor the internal temperature. This temperature-dependent resistor switches off the power outputs of the module from an internal temperature of 100 °C ± 3 °C (not yet finalized) .
Fuses·
- IEC variants: Two 16 A fuses are available for each power output in a fuse module that can be accessed from the front to protect the power triacs.
Diagnostics options
Diagnostics are provided for the detection of the following faults as standard:
- Implicit diagnostics means that the heating power is not affected by the diagnostics
- Leading fuse defective / triac at high resistance (exception: setpoint 0%)
- Incoming fuse is defective
- Triac failed (exception: setpoint 100%)
- Emitter cable is defective (short-circuit and interruption)
- Load defective (short-circuit and interruption)
- Supply voltage monitoring
Line voltage compensation
- Internal compensation is carried out to compensate for line voltage fluctuations.
- The function runs on the HCS master and can be switched on or off by the user.
- The HCS master has access to the measured voltage values from each POM.
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