The DK-45 is a high-tech product providing control and
protection of screw or piston type air compressors
driven by electric motors.
The controller incorporates all functions needed in a
compressor control panel. Thus no additional modules
are necessary resulting in lower panel cost.
The “early start” function analyzes the air consumption
trend and runs the compressor so that the pressure
never falls below the low limit.
The controller is directly supplied from the 230/400V
utility network. It provides fail contact and sensor
supplies internally, removing the need for a supply
transformer in the panel.
Utility mains voltages and frequency can be read on
the controller. It offers low/high voltage and phase
order protections.
The 2.9” wide, 128x64 pixels graphical screen displays
values in bigger size and with graphic support.
The logic level Modbus RTU communication port of the
controller allows computer connection providing
monitoring and program parameter adjusting.
Optically isolated digital inputs feature noise filtering
allowing fault-free operation in electrically noisy
environments.
The controller provides 5 relay outputs rated at 5
Amps.
The controller configuration may be done through the
front panel or using the free PC software. The PC
software is available for free download at
manufacturer’s website.
It is possible to monitor and record the controller using
the free RAINBOW+ software.
● Graphical LCD screen: 128x64 pixels, 2.9”
● Automatic operation from output pressure
● Voltage protection relay function
● Phase order protection relay function
● Analog speed control output
● Multiple compressor support
● Flexible motor hours calculation algorithm
● Early start function preventing pressure drop
● Dryer control function
● History records
● 5 independent service counters
● Supports various topologies
● Displays utility mains voltages
● No external transformer needed
● Star / Delta start-up
● Load solenoid control
● 5 programmable relay outputs
● Optically isolated, programmable digital inputs
● 2 pressure sensor inputs
● 2 temperature sensor inputs
● Adjustable sensor characteristics
● Logic level serial port
● MODBUS-RTU communications
● Password protected front panel programming
● Low panel depth, easy installation
● Wide operating temperature range
● Sealed front panel (IP65 with gasket)
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Power
Measurement Inputs
