Save up to 40% energy	MotorMaster
......with Frequency Inverters for refrigeration, ventilation and air conditioning		Features User benefits Chart of equipment Options Product conformance

+FrigoSoft
 
 

Features Analog pressure input for the control of suction pressure or Two different setpoints directly selectable (e.g. for night setpoint) Freely-selectable minimum and maximum frequencies Possibility to select up to three skip frequencies Special function "freeze protection of the evaporator" for use in air-conditioning systems and chillers can be activated Testing and filling the system possible without using an external sensor  All FrigoSoft-advantages also available when using an external control system  Control of the oil pressure switch in large capacity compressors

MotorMaster Frequency Inverters Our applications support will be pleased to assist with adapting the inverter to the compressor used Easy connection to the external control system (safety switches, motor protection, etc.) Analog setpoint and measured value inputs can be set for various ranges  RS232 interface integrated as standard LON-Bus interface for building management systems on request NEW: The FrigoSoft-Software is integrated in the inverter. This results in simple minimum-time commissioning.

Values whitch can be shown on the inverter display

• Calculated evaporating temperature
• Setpoints
• All motor data (power, frequency, setpoint, etc.)

User benefits
Improved refrigeration quality  Practically ideal and constant pressure in the suction line, also under alternating system load.  Reduced temperature fluctuations in the refrigerated areas.
Energy saving Up to 40% energy saving due to stepless power control The evaporating temperature may be increased
No peakloads by soft starting of the compressor
Increased power 20 % higher compressor capacity compared to 50 Hz supply due to 60 Hz operation conditions  Higher C.O.P. factor at part load operating conditions
Extended lifetime  Closed-loop control eliminates pressure surges in the cooling circuit Adjustable timer to prevent frequent compressor starting at minimum demand levels
Ready for extention Two stage operation possible as standard, third stage on request. Soft start of second stage compressor is recommended (KIMODUL, LEKTROMIK)
Safety Automatic restart following a supply interruption or system fault  Numerous supervision functions integrated in the software

MotorMaster MM5 Frequency inverter up to 4 kW

MotorMaster MM6 Frequency inverter up to 11kW

MotorMaster MM3SV Frequeny inverter up to 75 kW

• Removable programming pad with two-line plain-language display
• Mounting kit für external installation of the programming pad in the enclosure door
• Parts for wall mounting outside an electrical enclosure
• Interface relays for digital outputs (integrated with MM6 and MM3SV)
• Thermal motor protection
• Serial and Bus interfaces

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