User manual OMRON VARISPEED E7

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Manual abstract: user guide OMRON VARISPEED E7

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[. . . ] TOE-S616-56. 1-03-OY VARISPEED E7 Variable Torque Frequency Inverter USER'S MANUAL Table of Content Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VII Safety Precautions and Instructions for Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIII EMC Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X Line Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Access Level C6-01 C6-02 C6-03 Normal duty selection Carrier frequency selection Carrier frequency upper limit 1 or 2 0 to F 2. 0 to 15. 0 *2 *3 1 6*1 15. 0 kHz *1 No No No A A A C6-04 Carrier frequency lower limit 0. 4 to 15. 0 *2*3 15. 0 kHz *1 No A C6-05 Carrier frequency proportional gain 00 to 99 *3 00 No A *1. This parameter can only be set when C6-02 is set to F. Carrier Frequency, Current Derating and Overload Capability in Normal Duty 1 and 2 The Inverter overload capability depends among other things on the carrier frequency setting. If the carrier frequency setting is higher than the factory setting, the overload current capability must be reduced. Further, Normal Duty 2 enables a higher continuous output current before the Inverter overload calculation is started. Inverters in Protection Class IP00 and IP20 / NEMA 1 and Normal Duty 1 In Normal Duty 1 the default carrier frequency depends on the Inverter capacity. With the default setting the overload capability is 120% of the rated output current for 1 minute. If the carrier frequency is set to a higher value, the overload capability is reduced as shown in Fig 6. 1. 200V Class 37 to 90kW 400V Class 75 to 110kW 120% 200V Class 0. 4 to 22kW 400V Class 0. 4 to 22kW 96% 90% Output Current for 1 min. 400V Class 132kW 400V Class 160kW 200V Class 30kW 400V Class 30 to 55kW 0 Carrier Freq. 5kHz 8kHz 10kHz 15kHz Fig 6. 1 Overload Capability depending on Carrier Frequency (IP00 and IP20 / NEMA 1) in Normal Duty 1 6-2 Carrier Frequency Selection Inverters in Protection Class IP00 and IP20 / NEMA 1 and Normal Duty 2 In the Normal Duty 2 mode the maximum carrier frequency is decreased compared to the Normal Duty 1 mode but the short term overload capability is increased. Refer to Fig 6. 2 for the overload capability of both modes and to page 5-47, Factory Settings that Change with the Inverter Capacity (o2-04) for the carrier frequency default settings in Normal Duty 2 100 Inverter Overload Detection Time [min] 10 1 0. 1 100 110 120 130 140 150 160 170 180 190 200 Overload Level [%] Normal Duty 1 Normal Duty 2 Fig 6. 2 Normal Duty 1 and 2 Inverter Overload Detection Curve Inverters in Protection Class IP54 The default carrier frequency setting is 5kHz for all Inverters in protection class IP54. If the carrier frequency is set to a higher value than the factory setting, the overload capability is reduced as shown in Fig 6. 3. For IP54 Inverters the setting Heavy Duty 2 is not available. 120% 400V class 22 to 55kW (IP54) Overload Current for 1 Minute 96% 400V class 7. 5kW to 18. 5kW (IP54) 72% 5 kHz 10 kHz 15 kHz Carrier Frequency Fig 6. 3 Overload Capability depending on Carrier Frequency (IP54) 6-3 Setting Precautions Carrier Frequency Selection When selecting the carrier frequency, observe the following precautions: · If the wiring distance between Inverter and motor is long: Set the carrier frequency low. (Use the following values as guidelines. Wiring Length C6-02 (carrier frequency) setting 50 m or less 0 to 6 (15 kHz) 100 m or less 0 to 4 (10 kHz) Over 100 m 0 to 2 (5 kHz) · If speed and torque oscillate at low speeds: Decrease the carrier frequency. · If Inverter noise is affecting peripheral devices: Decrease the carrier frequency. · If leakage current from the Inverter is large: Decrease the carrier frequency. · If metallic noise from the motor is large: Increase the carrier frequency. · The carrier frequency can be set to vary depending on the output frequency as shown in the following dia- gram, by setting C6-03 (Carrier Frequency Upper Limit), C6-04 (Carrier Frequency Lower Limit), and C6-05 (Carrier Frequency Proportional Gain). Carrier Frequency C6-03 C6-04 Output frequency x C6-05 x K Output frequency E1-04 Max. Output Frequency Fig 6. 4 Carrier Frequency Gain * K is the coefficient determined by the set value in C6-03. C6-03 10. 0 kHz: K=3 10. 0 kHz > C6-03 5. 0 kHz: K=2 5. 0 kHz > C6-03: K=1 · To fix the carrier frequency to any desired value, set C6-03 and C6-04 to the same value, or set C6-05 to 0. An OPE11 (Data setting error) will occur in the following cases: · If Carrier Frequency Proportional Gain (C6-05) > 6 and C6-03 < C6-04 · If C6-02 is set from 7 to E. 6-4 Frequency Reference Frequency Reference This section explains how to input the frequency reference. Selecting the Frequency Reference Source Set parameter b1-01 to select the frequency reference source. Related Parameters Parameter Number Name Setting Range Factory Setting Change during Operation Access Level b1-01 Reference selection 0 to 3 1 No Q Input the Frequency Reference from the Digital Operator When b1-01 is set to 0, the frequency reference can be input from the Digital Operator. For details on setting the frequency reference, refer to Chapter 3, Digital Operator and Modes -DRIVERdy Frequency Ref U1- 01= 0 60. 00Hz (0. 00 ~ 60. 00) "0. 00Hz" Fig 6. 5 Frequency Setting Display with LED and LCD Digital Operator Inputting the Frequency Reference Using Voltage (Analog Setting) When b1-01 is set to 1, the frequency reference can be input from the control circuit terminal A1 (voltage input), or control circuit terminal A2 (voltage or current input). Inputting Master Speed Frequency Reference Only If inputting the master speed frequency reference only, input the voltage reference to control circuit terminal A1. Inverter 2 k +V (Power supply: 15 V, 20 mA) 2 k A1 (Master frequency reference) A2 (Auxiliary frequency reference) AC (Analog common) Fig 6. 6 Master Speed Frequency Reference Input 6-5 2-Step Switching: Master/Auxiliary If 2-step switching between master and auxiliary speed frequencies is performed, input the master speed frequency reference to control circuit terminal A1, and input the auxiliary speed frequency reference to A2. When terminal S3 (multi-step speed command 1) is OFF, terminal A1 input (master speed frequency reference) will be the Inverter frequency reference, and when terminal S3 is ON, terminal A2 input (auxiliary speed frequency reference) will be the Inverter frequency reference. Inverter Master/ Auxiliary S3 Multi-step speed command 1 SN Digital input neutral 2 k 2 k 0 to 10 V input 0 to 10 V input +V (Power supply: 15 V, 20 mA) A1 (Master frequency reference) A2 (Auxiliary frequency reference) AC (Analog common) 2 k DIP switch S1 Fig 6. 7 Master/Auxiliary Frequency Reference Input Setting Precautions When inputting a voltage signal to terminal A2, turn OFF pin 2 on DIP switch S1 to switch to voltage input (factory setting is ON). Inputting Frequency Reference Using Current When b1-01 is set to 1, the frequency reference can be input from control circuit terminal A2. [. . . ] Ensure that the motor insulation class is sufficient. Acoustic Noise The acoustic noise generated in the motor depends on the carrier frequency. The higher the setting, the less is the generated acoustic noise. 10-4 Motor Application Precautions Using the Inverter for Special Motors Observe the following precautions when using a special motor. Pole-changing Motor The rated input current of pole-changing motors differs from that of standard motors. Select an appropriate Inverter according to the maximum current of the motor. Submersible Motor The rated input current of submersible motors is higher than that of standard motors. Therefore, always select an Inverter by checking its rated output current. [. . . ]

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