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Frequency Converter PEDC for WATERblue-H
Premium Efficiency Drive ("PEDC")frequency converter technology
for WATERblue-H |
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Introduction
In addition to a robust, sturdy housing, the frequency converter has optimum EMC properties with low leakage currents. For this reason, it is suited for use in private households. Due to its variable input voltages it is excellently suited for all applications in which bath water should be kept moving using the pumps of the WATERblue-H construction series.
Properties
Whether for wall or direct mounting, the PEDC is always the suitable solution. Its attractive design, which successfully harmonises with the WATERblue-H, rounds off the overall picture. With the PEDC and the selectable, highly efficient permanent magnet motors, up to 50% energy savings can be achieved through an infinitely variable speed control that is adaptable to all operating conditions.
Function
Three different fixed speeds are available (Normal operation, Speed 1, and Speed 2; see the figure at the right) that can be infinitely adjusted using two buttons independently of each other. In addition, the PEDC has a start/stop button. The optical signals are shown via LEDs. The red Error LED and green Power LED inform the user about the respective operating state of the PEDCs. The most important warning messages are also signalled by the Error LED. In addition to the functionality of the display, the frequency converter has various protective functions, such as the prevention of undervoltages or overvoltages or protection against the freezing of the medium.
Control system
At a maximum ambient temperature of 50°C, the PEDC has a lifetime of at least 20,000 operating hours at 230V or 40,000 operating hours at 400V input voltage. Some of the other features of the PEDC are as follows:
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Modular structural design |
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Easy and fast adaption to the motor |
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Same sizes for all output classes up to 2.2 kW |
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Uniform software
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For external actuation, digital and analogue inputs and digital outputs are available for all kinds of requirements. The converter is always equipped with current monitoring that detects an underload or an overload and thus protects the pump from damage. In this way, the service life can be considerably extended.
Technical specifications
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| Input voltage |
230V (single-phase mains),
400V (three-phase mains) |
| Rotating field frequency |
30-150 Hz |
| Inputs |
3 x digital
1 x analogue |
| Outputs |
1 x digital |
| Protection type according to DIN EN 60529 |
IP 55 |
| Approvals |
CE |
EMC inspections according to
DIN EN 61800-3;
VDE 0160-103:2005-07 |
C2 |
| Operation |
Integrated membrane keyboard |
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