Subassembly 23: Converter - Xylem WEDECO SMOevo PLUS Series Original Manual

Option: FH Flashlight and Horn
The option FH includes the components flashlight, horn, and display.
The following PLC outputs are available for this option:
Digital Flashlight
Digital Horn
Analog Ambient air
concentration

5.3.6 Subassembly 23: Converter

The converter technology (FU – frequency converter) used in the system generates a
medium-frequency, single-phase alternating voltage from 3-phase power supply with a fixed
frequency of 50/60Hz. The generated single-phase AC voltage is transferred to a medium-
voltage level by means of a step-up transformer.
A pulse converter with variable operating frequency with a dynamic range of 0.1% -100% is
used. (corresponds to a frequency range of 1 Hz - 1000 Hz).
The following table shows an overview of the units in use.
Type
VF A 15 IGBT
VF A 30 IGBT
VF W 60 IGBT
VF W 80 IGBT
VF W 100 IGBT
VF W 160
VF = variable frequency converter
IGBT = insulated-gate bipolar transistor
Manual_SMOevoPLUS_eng_01.2019.doc
By a relay with two change-over contacts
an external flashlight is energized
•
the second contact can be used for alarm signalization
•
and/or for activation of a technical ventilation.
In case of a malfunction, the PLC output energizes a relay for
30 seconds, which in turn activates an external acoustic alarm
signal.
For external display of the ambient air concentration.
Technology
SMOevo
VF IGBT
SMOevo
VF IGBT
SMOevo
VF IGBT SMOevo
VF IGBT SMOevo
VF IGBT SMOevo
VF 12puls SMOevo
Manual Ozone Generating System SMOevo
Allocation
PLUS
System
Forced air cooling of the power
PLUS
410/460 block
Forced air cooling of the power
PLUS
510/560 block
PLUS
610/660 Water-cooled power block
PLUS
710/760 Water-cooled power block
PLUS
810/860 Water-cooled power block
PLUS
910/960 Water-cooled power block
PLUS
System Description
Remarks
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