Overview
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1 Overview
1.1 General Information
The Nicotra Gebhardt EC-Controller EKE10-0070-5E-IM is an inverter for controlling the
speed of motor-impeller-units with BLDC or induction motors (IM).
Due to its sensorless field oriented control algorithm the motors are driven in any duty point
at the optimum field angle. This always results in good efficiency.
The EC-Controller provides active Power Factor Correction (PFC) and inverter and motor
overload protection. The EC-Controller EKE10-0070-5E-IM can be used in both stand-alone
applications as well as in large fan systems using the integrated network interface (Modbus
RTU) for controlling and monitoring purposes.
1.2 Features
1.2.1 Main Characteristics
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Supply voltage 230Vac ±10%
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Easy installation and commissioning
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Simple cable connection with cage clamps
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Integrated network interface (Modbus RTU)
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Sensorless Airflow Control
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Integrated analogue-/digital interface (3x programmable analog/digital inputs, 2x
programmable dry contacts)
1.2.2 Performance
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Sensorless field oriented speed control
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Acceleration and deceleration ramp
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High efficiency
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up to 2000W input power (depending on cooling)
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Power Factor >98%
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Harmonic currents <8% THD (integrated active PFC)
1.2.3 Protection
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Mains voltage monitoring (Brown-out)
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Overload and overheat protection controller
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Impeller blocking protection
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Adjustable maximum speed according to the impeller size
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Safe Operating Area (speed, power and current limitation according to the selected fan
type)
Speed
Power
Limit
Current
Limit
V
p
