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Nidec Embraco CF01F Product Manual
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Nidec Embraco CF01F Product Manual

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CF01F & CF02F INVERTERS
Product Manual
www.embraco.com
August, 2024
Version 03

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Summary of Contents for Nidec Embraco CF01F

  • Page 1 CF01F & CF02F INVERTERS Product Manual www.embraco.com August, 2024 Version 03...
  • Page 2 TABLE OF CONTENTS INTRODUCTION 1.1. Conventions TECHNICAL SPECIFICATIONS 2.1. Nomenclature 2.2. Product specification 2.3. Product dimensions 2.4. Connectors 2.5. Cable path 2.6. Harmonic current emissions (PFC version) 2.7. Capacitors discharge circuit 2.8. Label 2.9. Institute approval INSTALLATION 3.1. General Precautions 3.2.
  • Page 3 ● An incorrect operation that could result in equipment damage. NOTICE ● Contain helpful suggestions or references to material not covered in this document. To obtain access to such materials, please get in contact with your Nidec GA Application Engineer.
  • Page 4 2. TECHNICAL SPECIFICATIONS 2.1. Nomenclature Description Definitions Driver Type Controller for VCC (variable capacity compressors) 01 - Standard power (150 W) Family 02 - Extended power (240 W) Generation A sequential letter indicating relevant external (within the family) modification 01 – Standard efficiency level, without PFC 02 –...
  • Page 5 2.2. Product specification Parameter Specification L / N = 115-127 V, 50/60 Hz Nominal input voltage and frequency M / N / W = 220-240 V, 50/60 Hz (Notes 1, 2) L / N = 85 V Minimum input voltage M / W = 160 V (Note 3) L = 140 V...
  • Page 6 Note 12 – Inverter shall be stored in a proper environment to avoid condensation and oxidation of its parts. Note 13 – If extended storage and operating temperatures are required, please get in contact with your Nidec GA Application Engineer.
  • Page 7 Input Power [W] Inverter Ambient CF01Fx CF02F21 CF02F0x Temperature CF02F22 CF02F23 [°C] Table 3 – Derating table Figure 1 – Measuring point of Inverter ambient temperature (compressor niche temperature)
  • Page 8 WARNING ● Do not connect the CF01F or the CF02F Inverter to a power supply above the declared Maximum Input Voltage. CAUTION ● This Inverter is for use only with the Embraco VCC compressor. ● Operating the product at voltages out of the declared input operating voltage range may reduce its reliability and significantly impair product performance.
  • Page 9 2.3. Product dimensions 2.3.1. Inverters without PFC inductor Figure 2 – CF01F0x and CF02F0x Inverters dimensions (mm) 2.3.2. Inverters with internal PFC inductor on the label side Figure 3 – CF01F2x and CF02F2x Inverters dimensions (mm)
  • Page 10 2.3.3. Inverters with internal PFC inductor on the bottom side Figure 4 – CF01F2x and CF02F2x Inverters dimensions (mm) 2.4. Connectors Figure 5 shows the connections available in this Inverter configuration. Figure 6 shows the convention of terminal number on VH connectors. Connections specifications are presented in Table 4.
  • Page 11 Figure 5 – CF01F and CF02F Inverters connections Figure 6 – VH connector circuits...
  • Page 12 Connection PCB designator Signal Type VH connector type, Communication - CN209 2 ways (white), Frequency control Signal or edge connector VH connector type, Signal Communication - CN209 2 ways (white), Drop-in control or edge connector (Not available for CF0xFx3 series) CN211 Signal Faston 4.8...
  • Page 13 Figure 7 and Figure 8 show the connections available in the CF01F0xN Inverter (dual voltage version). Connections specifications are presented in Table 5. Figure 7 – CF01F0xN Inverter connections with standard connectors Figure 8 – CF01F0xN Inverter connections with integrated connector...
  • Page 14 Connection PCB designator Signal Type VH connector type, Communication - CN209 2 ways (white), Frequency control Signal or edge connector VH connector type, Signal CN209 2 ways (white), Communication - or edge connector Drop-in control CN211 Signal Faston 4.8 VH connector type, Communication - CN209 3 ways (white),...
  • Page 15 2.5. Cable path The CF01F and CF02F Inverters have four cable paths, as shown in Figure 9. The maximum recommended diameter for rigid insulation cables (H05V2V2-F type) is presented in Table 6. In the case of flexible insulation type, larger diameters may be applied. Compliance with clause 25.15 of IEC 60335-1 shall be observed with the final arrangement of cables.
  • Page 16 The CF01F and CF02F inverters are designed with discharge circuits, that may be assembled upon demand. The Inverters can be configured with passive or active discharge circuit solutions. To select the best choice for your application, please contact your Nidec GA Application Engineer.
  • Page 17 2.8. Label Figure 10 – Product label 2.9. Institute approval Inverte Certificat Institut e No. / Applied standard Approval mark Version File EN 60335-1:2012 CF0xFx1 +AC+A11+A13 CF0xFx2 40052297 +A1+A2 +A14:2019 CF0xFx3 EN 60335-2-34:2013 with Annex AA UL 60730-1, E222315, CF0xFx1 Fifth edition Vol.
  • Page 18 3. INSTALLATION 3.1. General Precautions WARNING ● Do not open the Inverter box. For installation, remove only the Inverter cover to make the electrical connections. ● Make sure that the CF01F or CF02F Inverter will not be in touch with flames during assembly.
  • Page 19 3.2. Electrical Installation In single-phase installations, the line phase wire must be protected by a circuit breaker. Furthermore, the line phase wire must be connected to the Inverter's phase input connector and the line neutral to the neutral input connector of the Inverter. Figure 11 shows the recommended connections.
  • Page 20 3.3. Mechanical structure The CF01F and CF02F inverters are available only for direct assembly on the compressor pins (attached version). Figure 13 and Figure 14 show the enclosure components for the inverter versions. Table 8 presents the inverter versions and their corresponding enclosure types. Mechanical Inverter Assembling...
  • Page 21 Figure 14 – Structure for attached version of CF02Fx1 and CF02Fx2 3.4. Assembly Instructions The motor cable (9) of CF01F and CF02F Inverters is pre-assembled in the Inverter enclosure (11). Once the Inverter is correctly attached to the compressor, the motor cable is then connected to the hermetical terminals pins.
  • Page 22 Maximum and minimum specified torque must be met. The screwing torque must be verified at least once per batch. The CF01F and CF02F Inverters must be assembled in the compressor fence with rotational movement. Assembly instructions to attach the Inverter in the compressor fence are shown in Figure 15.
  • Page 23 CAUTION ● Once assembled on the compressor, do not hold the Inverter to lift or transport compressor. Maximum and minimum specified torque must be met. The screwing torque must be verified at least once per batch. NOTICE ● The provision for compressor earth connection can be made through the earth connector provided by CF01F and CF02F Inverters.
  • Page 24 3.6. Product discard WARNING ● Do not open the Inverter box. ● Do not incinerate the CF01F or CF02F Inverter. Contact your local authorities if you need to incinerate this product for disposal. CAUTION ● The used CF01F and CF02F Inverters should not be mixed with general household waste after their lifetime or for any other discarding purpose.
  • Page 25 4. OPERATION CAUTION ● The compressor OFF must be done through a proper control signal and never by de-energizing the Inverter. Excessive inrush current events that happen under this circumstance may permanently damage the Inverter and/or the thermostat. NOTICE ● The CF01F and CF02F Inverters have three different possible control modes; frequency, drop-in, and serial-mode.
  • Page 26 Input frequency signal [Hz] VES compressor speed [rpm] 0 to 20 20 to 31,7 31,7 to 150 30 x Hz ≥150 4500 Table 10 – VES Compressors (950-4500 rpm) speed versus Frequency control signal Input frequency signal [Hz] FMX compressor speed [rpm] 0 to 20 20 to 43,3 1300...
  • Page 27 Input frequency signal [Hz] FMS compressor speed [rpm] 0 to 40 40 to 42,8 1800 42,8 to 150 42 x Hz ≥150 6300 Table 14 – Legacy FMS Compressors speed versus Frequency control signal Note 1 – Frequency control curve for new SKUs of inverters for FMS compressors (software PN: FST). Note 2 –...
  • Page 28 Figure 18 – Frequency signal example 4.1.2. Frequency control connection and electrical schematic The thermostat is connected to the Inverter through the CN209 connection, using a communication cable (Figure 19). Figure 19 – Frequency control connection...
  • Page 29 The frequency signal is a digital square wave and its parameters are described in Table 15. Parameter Level OFF state -5 V to +0,7 V Indefinite state +0,7 V to +4 V ON state +4 V to +15 V Signals out of specification below -5 V, above +15 V Minimum duty cycle 30 %...
  • Page 30 4.2. Serial control mode This option is used when the electronic thermostat controls the CF01F or CF02F using a serial communication protocol. The serial communication protocol is based on RS-232 parameters, but the interface's electrical specifications are different from this standard. 4.2.1.
  • Page 31 4.2.3. Basic command structure 1st byte 2nd byte 4th byte 5th byte Transmit command 3rd byte identificatio comman data checksu structure data low high 1: Transmit set speed 2: Read set speed 3: Read operation status Table 18 – Serial Communication – Transmit Command Structure 1st byte 2nd byte 4th byte...
  • Page 32 Low byte Status bit of Description Remarks data status data Typically this data is returned 0000h Normal operation 4)= 00h, 5)= 00h 0002h Power/Thermal protection 4)= 02h, 5)= 00h 0080h Set speed data out of spec 4)= 80h, 5)= 00h Compressor stopped (waiting FF00h 4)= 00h, 5)= FFh...
  • Page 33 Figure 22 – Serial control connection To guarantee serial communication's correct functionality, the signal sent to the Inverter must be according to the following values (Table 21). Parameter Level TRUE state -5 V to + 0,7 V Indefinite state + 0,7 V to + 4 V FALSE state + 4 V to + 15 V Minimum current...
  • Page 34 Figure 23 – Electrical schematics of CF01F and CF02F Inverter board configured as serial communication...
  • Page 35 4.3. Drop-in control mode The Drop-In mode (not applicable for CF0xFx3) is a control mode of Embraco compressors, where single thermostat contact is used to set the compressor running conditions. Drop-In mode allows the VCC application to any refrigeration system with a simple ON/OFF thermostat, without needing a rotation control signal through serial or frequency communication.
  • Page 36 In the case one appliance requires some adjustment on the Drop-in, its parameters can be tuned on demand to maximize the system's performance. For customization demands, please get in contact with your Nidec GA Application Engineer. Figure 25 – Drop-in, normal cycling 4.3.2.
  • Page 37 4.3.2.2. Stability Routine The stability cycling is the main routine of Smart Drop-in. This routine will select the best speed to run the compressor, in order to achieve the target cycle duration. The target duration is set by the system's manufacturer through the customization tool via computer. 4.3.2.3.
  • Page 38 ● If the application requires working with lower input voltages, please get in contact with your Nidec GA Application Engineer. Figure 27 – Drop-in control connection...
  • Page 39 Figure 28 – Electrical schematics of CF01F and CF02F Inverter board configured as drop-in communication...
  • Page 40 4.4. Basic software routines 4.4.1. Compressor starting and stopping During the compressor start-up, the motor will run at a medium speed for 10 seconds. The motor speed will then follow the thermostat's set speed. When the thermostat sets the compressor off, the Inverter software first reduces the speed to a low rpm and then stops the motor.
  • Page 41 The Inverter power limit is designed to ensure that the Inverter does not operate over the components specification limit, minimizing reliability stress. When the input power reaches the power limit, the Inverter software reduces the motor speed to reduce the input power down to the limits of Table 2.
  • Page 42 Figure 31 – Example of thermal protection with speed reduction If the speed reduction is not sufficient to stop the temperature rise, and the NTC reaches the shutdown temperature, the motor is turned off, and the Inverter temperature reduces naturally. After the NTC temperature drops down to the turn-on limit, the compressor restarts automatically, and the motor speed follows the setpoint (Figure 32).
  • Page 43 Temperature protection active Table 22 – LED diagnosis pattern NOTICE ● This LED feature is available on CF01F and CF02F Inverters and can be implemented under customer request. In case of doubts, please get in contact with your Nidec GA Application Engineer.
  • Page 44 5.2. Troubleshooting The following tables show some possible problems and the best action to deal with them. In case of doubts, please get in contact with your Nidec GA Application Engineer. 5.2.1. Compressor not trying to start Problem Action Compressor disconnected from the Verify the Compressor Cable connection.
  • Page 45 5.2.2. Compressor fails to start at the initial seconds of operation (with starting attempts) Problem Action Check the power supply and guarantee the The supply voltage is out of specification. minimum starting voltage. Balanced pressure above the specified compressor limit due to excessive refrigerant Revise the refrigerant charge.
  • Page 46 5.2.3. Troubleshooting – Compressor stalls after some minutes of operation Problem Action Discharge pressure imposed by the system is high above the Increase the condenser area; compressor limit (application envelope) due to improper Check operation of the condenser design of condenser lacking area to dissipate the heat. fan;...
  • Page 47 Nidec shall not be held liable for components from other sources, whether by the refrigeration manufacturer or by third parties. Nidec does not represent or warrant that the use of this product will have the results described in its accompanying documentation or that the information provided with this product is complete, accurate, or useful.
  • Page 48 The product liability disclaimer document states the entire obligation of Nidec with respect to the products. If any part of this disclaimer is determined to be void, invalid, unenforceable,...
  • Page 49 No license and/or right, express or implied, by estoppels or otherwise, to any intellectual property rights is granted by this document or by any conduct of Nidec. Through the access of this material/information, YOU agree that nothing herein shall grant or conceived as granting/conferring/constituting any legal or equitable right, title, or interest other than as provided above.
  • Page 50 CONTACT If after these instructions you still have doubts, please do not hesitate to get in contact with your Nidec GA Application Engineer. www.embraco.com...

This manual is also suitable for:

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