User manual FUJI INVERTERS FRENIC MEGA

[. . . ] High Performance Multifunctional Inverters Maximum Engineering for Global Advantage FUJI INVERTERS With the flexibility and functionality to support a wide range of applications on all types of mechanical equipment, the FRENIC-MEGA takes core capability, responsiveness, environmental awareness, and easy maintenance to the next level. MEH655 The performance, reaching the peak in the industry FRENIC-MEGA is a high performance, multifunctional inverter Fuji Electric has developed by gathering the best of its technologies. With our own state-of-the-art technology, the control performance has evolved to a new dimension. FRENIC-MEGA has been developed to use with a variety of equipment by improving the basic performance, meeting the requirements for various applications, achieving lower maintenance, and enhancing the resistance to the environmental impacts. FRENIC-MEGA, the inverter with the highest performance in the industry, is about to redefine the common sense of general-purpose inverters. [. . . ] For opening and closing the hardware circuit between terminals [EN] and [PLC], use safety components such as safety relays and safety switches that comply with EN954-1, Category 3 or higher. Be sure to use shielded wires exclusive to terminals [EN] and [PLC]. (Do not put them together with any other control signal wire in the same shielded core. ) Ground the shielding layer. "When not using the Enable input function, keep the terminals between [EN] and [PLC] short-circuited with the jumper wire (factory default). 20 Terminal Functions Terminal Functions 21 Maximum Engineering for Global Advantage Variations Warranty Options External Dimensions Function Settings Terminal Functions Basic Wiring Diagram Common Specifications Standard Specifications Inverter Support Loader Keypad Operations Model Variations Characteristics Terminal Functions Terminal Functions 22 23 Maximum Engineering for Global Advantage Variations Warranty Options External Dimensions Function Settings Terminal Functions Basic Wiring Diagram Common Specifications Standard Specifications Inverter Support Loader Keypad Operations Model Variations Characteristics Terminal Functions Terminal Functions 24 Maximum Engineering for Global Advantage Main circuit terminals Power Nominal supply applied motor voltage (kW) 0. 4 0. 75 1. 5 2. 2 3. 7 (4. 0)* 5. 5 7. 5 Inverter type FRN0. 4G1 FRN0. 75G1 FRN1. 5G1 FRN2. 2G1 -4E -4E -4E -4E HD/LD mode Refer to: Figure A HD Figure B Terminal R0, T0: Screw size M3. 5, Tightening torque 1. 2 N·m (common to all inverter types) Terminal R1, T1: Screw size M3. 5, Tightening torque 1. 2 N·m (for 200 V class series with 37 kW or above and for 400 V class series with 75 kW or above) Figure A Charging lamp Figure B V W Charging lamp L1/R L2/S L3/T U G G R0 T0 DB P1 P(+) N(-) Terminal block width: 6. 6 G L1/R L2/S L3/T DB P1 P(+) N(-) U V W G Terminal block width - R0, T0: 6. 6 - Others: 9. 5 Figure C 13. 5 13. 5 13. 5 12 12 12 Charging lamp Figure D 22 Charging lamp 22 22 16. 5 FRN4. 0G1 -4E FRN5. 5G1 -4E FRN7. 5G1 -4E HD LD HD LD HD LD HD LD HD LD HD LD HD LD HD LD HD LD HD LD HD LD P1 16 P(+) 16 N(-) 16 U V W 12 U V W G 6. 6 12 22 R0 22 22 6. 6 16. 5 R0 22 22 22 L1/R L2/S L3/T T0 6. 6 DB G 12 L1/R 16. 5 L2/S L3/T T0 DB 6. 6 P1 P(+) N(-) Figure C G 12 11 FRN11G1 -4E 15 Threephase 400V FRN15G1 -4E 18. 5 FRN18. 5G1 -4E 22 FRN22G1 -4E 30 FRN30G1 -4E 37 FRN37G1 -4E 45 FRN45G1 -4E 55 FRN55G1 -4E 75 90 FRN75G1 -4E * G * Grounding terminal for input line, provided only on the EMC fielter built-in type G Figure E 6. 6 23 23 23 R0 T0 Figure F Charging lamp 23 23 23 30 30 30 R0 T0 6. 6 6. 6 30 30 30 R1 T1 Charging lamp L1/R L2/S L3/T U V W U L1/R L2/S L3/T V W Figure D P1 25 G 23 P(+) 25 N(-) 25 G 23 37 37 37 P1 P(+) N(-) G 23 G 23 Figure E Control circuit terminals (common to all the inverter models) Figure F -4E. * 4. 0 kW for the EU. The inverter type is FRN4. 0G1 Note: A box ( ) in the above table replaces S or E depending on the enclosure. 25 Variations Warranty Options External Dimensions Function Settings Terminal Functions Basic Wiring Diagram Common Specifications Standard Specifications Inverter Support Loader Keypad Operations Model Variations Characteristics Terminal Arrangement Function Settings F codes: Fundamental Functions Code Name Data Protection Function Settings Data setting range 0 : Disable both data protection and digital reference protection 1 : Enable data protection and disable digital reference protection 2 : Disable data protection and enable digital reference protection 3 : Enable both data protection and digital reference protection 0: / keys on keypad 1 : Voltage input to terminal [12] (-10 to +10 VDC) 2 : Current input to terminal [C1] (4 to 20 mA DC) 3 : Sum of voltage and current inputs to terminals [12] and [C1] 5 : Voltage input to terminal [V2] (0 to 10 VDC) 7 : Terminal command UP/DOWN control 8: / keys on keypad(balanceless-bumpless switching available) 11 : Digital input interface card (option) 12 : PG interface card 0 : RUN/STOP keys on keypad (Motor rotational direction specified by terminal command FWD/REV) 1 : Terminal command FWD or REV 2 : RUN/STOP keys on keypad (forward) 3 : RUN/STOP keys on keypad (reverse) 25. 0 to 500. 0 Hz 25. 0 to 500. 0 Hz 0 : Output a voltage in proportion to input voltage 80 to 240 V : Output an AVR-controlled voltage(for 200 V class series) 160 to 500 V : Output an AVR-controlled voltage(for 400 V class series) 80 to 240 V : Output an AVR-controlled voltage(for 200 V class series) 160 to 500 V : Output an AVR-controlled voltage(for 400 V class series) 0. 00 to 6000 s No te: Entering 0. 00 cancels the acceleration time, requiring external soft-start. 0. 0% to 20. 0% (percentage with respect to "Rated Voltage at Base Frequency 1") 1 : For a general-purpose motor with shaft-driven cooling fan 2 : For an inverter-driven motor, non-ventilated motor, or motor with separately powered cooling fan 0. 00: Disable 1% to 135% of the rated current (allowable continuous drive current) of the motor 0. 5 to 75. 0 min 0 : Trip immediately 1 : Trip after a recovery from power failure 2 : Trip after decelerate-to-stop 3 : Continue to run, for heavy inertia or general loads 4 : Restart at the frequency at which the power failure occurred, for general loads 5 : Restart at the starting frequency 0. 0 to 500. 0 Hz 0. 0 to 500. 0 Hz -100. 00% to 100. 00% 0. 0 to 60. 0 Hz 0% to 100% (HD mode), 0% to 80% (LD mode) 0. 00 (Disable); 0. 01 to 30. 00 s 0. 0 to 60. 0 Hz 0. 00 to 10. 00 s 0. 0 to 60. 0 Hz 0. 75 to 16 kHz (HD-mode inverters with 55 kW or below and LD-mode ones with 18. 5 kW or below) 0. 75 to 10 kHz (HD-mode inverters with 75 to 630 kW and LD-mode ones with 22 to 55 kW) 0. 75 to 6 kHz (LD-mode inverters with 75 to 630 kW) 0 : Level 0 (Inactive) 1 : Level 1 2 : Level 2 3 : Level 3 0 : Output in voltage (0 to 10 VDC) 1 : Output in current (4 to 20 mA DC) 0% to 300% Select a function to be monitored from the followings. 0 : Output frequency 1 (before slip compensation) 1 : Output frequency 2 (after slip compensation) 2 : Output current 3 : Output voltage 4 : Output torque 5 : Load factor 6 : Input power 7 : PID feedback amount 8 : PG feedback value 9 : DC link bus voltage 10 : Universal AO 13 : Motor output 14 : Calibration (+) 15 : PID command (SV) 16 : PID output (MV) 0: Output in voltage (0 to 10 VDC) 1: Output in current (4 to 20 mA DC) 0% to 300% Select a function to be monitored from the followings. 0 : Output frequency 1 (before slip compensation) 1 : Output frequency 2 (after slip compensation) 2 : Output current 3 : Output voltage 4 : Output torque Change when Data Default Drive control running copying setting V/f W/O PG W/PG 0 Frequency Command 1 0 Operation Method 2 Maximum Frequency 1 Base Frequency 1 Rated Voltage at Base Frequency 1 Maximum Output Voltage 1 Acceleration Time 1 Deceleration Time 1 Torque Boost 1 Electronic Thermal Overload Protection for Motor1 (Select motor characteristics) (Overload detection level) (Thermal time constant) Restart Mode after Momentary Power Failure (Mode selection) 2 2 *1 50. 0 *1 *1 *2 *2 *3 1 12 *4 *5 1 Frequency Limiter (High) (Low) Bias (Frequency command 1) DC Braking 1 (Braking starting frequency) (Braking level) (Braking time) Starting Frequency 1 (Holding time) Stop Frequency Motor Sound (Carrier frequency) (Tone) 70. 0 0. 0 0. 00 0. 0 0 0. 00 0. 5 0. 00 0. 2 2 (Asia) 15 (EU) 0 Analog Output [FM1] (Mode selection) (Voltage adjustment) (Function) 0 100 0 Analog Output [FM2] (Mode selection) (Voltage adjustment) (Function) 0 100 0 26 Maximum Engineering for Global Advantage Code Name Analog Output [FM2] (Function) Data setting range 5 : Load factor 6 : Input power 7 : PID feedback amount 8 : PG feedback value 9 : DC link bus voltage 10 : Universal AO 13 : Motor output 14 : Calibration 15 : PID command (SV) 16 : PID output (MV) 0 : Variable torque load 1 : Constant torque load 2 : Auto torque boost 3 : Auto energy saving(Variable torque load during ACC/DEC) 4 : Auto energy saving(Constant torque load during ACC/DEC) 5 : Auto energy saving(Auto torque boost during ACC/DEC) 0 : Detected speed 1 : Commanded speed 0. 00 to 10. 00 s -300% to 300%; 999 (Disable) -300% to 300%; 999 (Disable) 0 : V/f control with slip compensation inactive 1 : Dynamic torque vector control 2 : V/f control with slip compensation active 5 : Vector control without speed sensor 6 : Vector control with speed sensor 0 : Disable (No current limiter works. ) 1 : Enable at constant speed (Disable during ACC/DEC) 2 : Enable during ACC/constant speed operation 20% to 200% (The data is interpreted as the rated output current of the inverter for 100%. ) 0 (Braking resistor built-in type), 1 to 9000 kWs, OFF (Disable) 0. 001 to 99. 99 kW 0. 01 to 999 0 : HD (High Duty) mode 1 : LD (Low Duty) mode Changewhen Data Default Drive control running copying setting V/f W/O PG W/PG 0 Load Selection/ Auto Torque Boost/ Auto Energy Saving Operation 1 1 Stop Frequency (Detection mode) (Holding Time) Torque Limiter 1-1 1-2 Drive Control Selection 1 0 0. 00 999 999 0 Current Limiter (Mode selection) (Level) Electronic Thermal Overload Protection for Braking Resistor (Discharging capability) (Allowable average loss) (Resistance) Switching between HD and LD drive modes 2 160 6 0. 001 0. 01 0 12 12 12 E codes: Extension Terminal Functions Code Name Terminal [X1] Function Terminal [X2] Function Terminal [X3] Function Terminal [X4] Function Terminal [X5] Function Terminal [X6] Function Terminal [X7] Function Data setting range Selecting function code data assigns the corresponding function to terminals [X1] to [X7] as listed below. 0 (1000) : Select multi-frequency (0 to 1 steps) (SS1) 1 (1001) : Select multi-frequency (0 to 3 steps) (SS2) 2 (1002) : Select multi-frequency (0 to 7 steps) (SS4) 3 (1003) : Select multi-frequency (0 to 15 steps) (SS8) 4 (1004) : Select ACC/DEC time (2 steps) (RT1) 5 (1005) : Select ACC/DEC time (4 steps) (RT2) 6 (1006) : Enable 3-wire operation (HLD) 7 (1007) : Coast to a stop (BX) 8 (1008) : Reset alarm (RST) 9 (1009) : Enable external alarm trip (9 = Active OFF, 1009 = Active ON) (THR) 10 (1010) : Ready for jogging (JOG) 11 (1011) : Select frequency command 2/1 (Hz2/Hz1) 12 (1012) : Select motor 2 (M2) 13 (1012) : Enable DC braking (DCBRK) 14 (1014) : Select torque limiter level 2/1 (TL2/TL1) 15 (1012) : Switch to commercial power (50 Hz) (SW50) 16 (1012) : Switch to commercial power (60 Hz) (SW60) 17 (1017) : UP (Increase output frequency) (UP) 18 (1018) : DOWN (Decrease output frequency) (DOWN) 19 (1019) : Enable data change with keypad (WE-KP) 20 (1020) : Cancel PID control (Hz/PID) 21 (1021) : Switch normal/inverse operation (IVS) 22 (1022) : Interlock (IL) 24 (1024) : Enable communications link via RS-485 or fieldbus (option) (LE) 25 (1025) : Universal DI (U-DI) 26 (1026) : Enable auto search for idling motor speed at starting (STM) 30 (1030) : Force to stop (30 = Active OFF, 1030 = Active ON) (STOP) 32 (1032) : Pre-excitation (EXITE) 33 (1033) : Reset PID integral and differential components (PID-RST) 34 (1034) : Hold PID integral component (PID-HLD) 35 (1035) : Select local (keypad) operation (LOC) 36 (1036) : Select motor 3 (M3) Changewhen Data Default Drive control running copying setting V/f W/O PG W/PG 0 1 2 3 4 5 8 The shaded function codes ( ) are applicable to the quick setup. *1 The factory default differs depending upon the shipping destination. *2 6. 00 s for inverters with a capacity of 22 kW or below; 20. 00 s for those with 30 kW or above. *3 The factory default differs depending upon the inverter's capacity. *4 The motor rated current is automatically set. *5 5. 0 min for inverters with a capacity of 22 kW or below; 10. 0 min for those with 30 kW or above. *6 0 for inverters with a capacity of 7. 5 kW or below; OFF for those with 0. 11 kW or above. <Data change, reflection and strage> : Not available : After changing data with using keys, execute and save data by pressing After changing and executing data with using keys, save the data by pressing key. Data copy Data copy is enabled. 2 Data copy is not enabled if the voltage classes vary. Data copy is not enabled. key, 27 Variations 1 Data copy is not enabled if the inverter capacities vary. Warranty Options External Dimensions Function Settings Terminal Functions Basic Wiring Diagram Common Specifications Standard Specifications Inverter Support Loader Keypad Operations Model Variations Characteristics F codes: Fundamental Functions Function Settings E codes: Extension Terminal Functions Code Name Terminal [X7] Function Function Settings Data setting range 37 (1037) : Select motor 4 (M4) 39 (1012) : Protect motor from dew condensation (DWP) 40 (1012) : Enable integrated sequence to switch to commercial power (50 Hz) (ISW50) 41 (1012) : Enable integrated sequence to switch to commercial power (60 Hz) (ISW60) 47 (1047) : Servo-lock command (LOCK) (PIN) 48 (1012) : Pulse train input (available only on terminal [X7] (E07)) 49 (1049) : Pulse train sign (available on terminals except [X7] (E01 to E06)) (SIGN) 72 (1072) : Count the run time of commercial power-driven motor 1 (CRUN-M1) 73 (1073) : Count the run time of commercial power-driven motor 2 (CRUN-M2) 74 (1074) : Count the run time of commercial power-driven motor 3 (CRUN-M3) 75 (1075) : Count the run time of commercial power-driven motor 4 (CRUN-M4) 76 (1076) : Select droop control (DROOP) 77 (1077) : Cancel PG alarm (PG-CCL) Setting the value of 1000s in parentheses ( ) shown above assigns a negative logic input to a terminal. 0. 00 to 6000 s Note: Entering 0. 00 cancels the acceleration time, requiring external softstart and -stop. Change when Data Default Drive control running copying setting V/f W/OPG W/PG 8 Acceleration Time 2 Deceleration Time 2 Acceleration Time 3 Deceleration Time 3 Acceleration Time 4 Deceleration Time 4 Torque Limiter 2-1 Torque Limiter 2-2 Terminal [Y1] Function Terminal [Y2] Function Terminal [Y3] Function Terminal [Y4] Function Terminal [Y5A/C] Function Terminal [30A/B/C] Function (Relay output) -300% to 300%; 999 (Disable) -300% to 300%; 999 (Disable) Selecting function code data assigns the corresponding function to terminals [Y1] to [Y5A/C] and [30A/B/C] as listed below. 0 (1000) : Inverter running (RUN) 1 (1001) : Frequency (speed) arrival signal (FAR) 2 (1002) : Frequency (speed) detected (FDT) 3 (1003) : Undervoltage detected (Inverter stopped) (LU) 4 (1004) : Torque polarity detected (B/D) 5 (1005) : Inverter output limiting (IOL) 6 (1006) : Auto-restarting after momentary power failure (IPF) 7 (1007) : Motor overload early warning (OL) 8 (1008) : Keypad operation enabled (KP) 10 (1010) : Inverter ready to run (RDY) 11 (1010) : Switch motor drive source between commercial power and inverter output (For MC on commercial line) (SW88) 12 (1010) : Switch motor drive source between commercial power and inverter output (For secondary side) (SW52-2) 13 (1010) : Switch motor drive source between commercial power and inverter output (For primary side) (SW52-1) 15 (1015) : Select AX terminal function (For MC on primary side) (AX) 22 (1022) : Inverter output limiting with delay (IOL2) 25 (1025) : Cooling fan in operation (FAN) 26 (1026) : Auto-resetting (TRY) 27 (1027) : Universal DO (U-DO) 28 (1028) : Heat sink overheat early warning (OH) 30 (1030) : Lifetime alarm (LIFE) 31 (1031) : Frequency (speed) detected 2 (FDT2) 33 (1033) : Reference loss detected (REF OFF) 35 (1035) : Inverter output on (RUN2) 36 (1036) : Overload prevention control (OLP) 37 (1037) : Current detected (ID) 38 (1038) : Current detected 2 (ID2) 39 (1039) : Current detected 3 (ID3) 41 (1041) : Low current detected (IDL) 42 (1042) : PID alarm (PID-ALM) 43 (1043) : Under PID control (PID-CTL) 44 (1044) : Motor stopped due to slow flowrate under PID control (PID-STP) 45 (1045) : Low output torque detected (U-TL) 46 (1046) : Torque detected 1 (TD1) 47 (1047) : Torque detected 2 (TD2) 48 (1048) : Motor 1 selected (SWM1) 49 (1049) : Motor 2 selected (SWM2) 50 (1050) : Motor 3 selected (SWM3) 51 (1051) : Motor 4 selected (SWM4) 52 (1052) : Running forward (FRUN) 53 (1053) : Running reverse (RRUN) 54 (1054) : In remote operation (RMT) 56 (1056) : Motor overheat detected by thermistor (THM) 57 (1057) : Brake signal (BRKS) 58 (1058) : Frequency (speed) detected 3 (FDT3) 59 (1059) : Terminal [C1] wire break (C1OFF) 70 (1070) : Speed valid (DNZS) 71 (1071) : Speed agreement (DSAG) 72 (1072) : Frequency (speed) arrival signal 3 (FAR3) 76 (1076) : PG error detected (PG-ERR) 82 (1082) : Positioning completion signal (PSET) 84 (1084) : Maintenance timer (MNT) 98 (1098) : Light alarm (L-ALM) 99 (1099) : Alarm output (for any alarm) (ALM) 101 (1101): Enable circuit failure detected (DECF) 102 (1102): Enable input OFF (EN OFF) *2 *2 *2 *2 *2 *2 999 999 0 1 2 7 15 99 28 Maximum Engineering for Global Advantage Code Name (Relay output) Frequency Arrival (Detection width) 0. 0 to 10. 0 Hz Frequency Detection 1(Level) 0. 0 to 500. 0 Hz (Hysteresis width) 0. 0 to 500. 0 Hz Data setting range (DBAL) Setting the value of 1000s in parentheses ( ) shown above assigns a negative logic input to a terminal. Changewhen Data Default Drive control running copying setting V/f W/OPG W/PG 99 2. 5 *1 1. 0 1 2 *4 10. 00 *1 1 2 *4 10. 00 100 0. 00 0. 5 0 Terminal [30A/B/C] Function 105 (1105): Braking transistor broken Overload Early Warning/(Level) 0. 00 (Disable); Current value of 1% to 200% of the inverter rated current Current Detection (Timer) 0. 01 to 600. 00s Frequency Detection 2 (Level) 0. 0 to 500. 0Hz Current Detection 2/ (Level) 0. 00 (Disable); Current value of 1% to 200% of the inverter rated current Low Current Detection (Timer) 0. 01 to 600. 00 s PID Display Coefficient A PID Display Coefficient B LED Display Filter LED Monitor (Item selection) -999 to 0. 00 to 9990 -999 to 0. 00 to 9990 0. 0 to 5. 0 s 0 : Speed monitor (select by E48) 3 : Output current 4 : Output voltage 8 : Calculated torque 9 : Input power 10 : PID command 12 : PID feedback amount 14 : PID output 15 : Load factor 16 : Motor output 17 : Analog input 23 : Torque current (%) 24 : Magnetic flux command (%) 25 : Input watt-hour (Display when stopped) LCD Monitor (Item selection) 0 : Specified value 1 : Output value 0 : Running status, rotational direction and operation guide 1 : Bar charts for output frequency, current and calculated torque (Language selection) Multi-function keypad (option) Type: TP-G1-J1 0 : Japanese 1 : English 2 : German 3 : French 4 : Spanish 5 : Italian (Contrast control) 0 (Low) to 10 (High) LED Monitor (Speed monitor item) 0 : Output frequency (Before slip compensation) 1 : Output frequency (After slip compensation) 2 : Reference frequency 3 : Motor speed in r/min 4 : Load shaft speed in r/min 5 : Line speed in m/min 7 : Display speed in % Coefficient for Speed Indication Display Coefficient for Input Watt-hour Data Keypad (Menu display mode) 0. 01 to 200. 00 0. 000 (Cancel/reset), 0. 001 to 9999 0 : Function code data editing mode (Menu #0, #1, and #7) 1 : Function code data check mode (Menu #2 and #7) 2 : Full-menu mode Frequency Detection 3(Level) 0. 0 to 500. 0 Hz Current Detection 3(Level) 0. 00 (Disable); Current value of 1% to 200% of the inverter rated current (Timer) 0. 01 to 600. 00 s Terminal [12] Extended Function Terminal [C1] Extended Function Terminal [V2] Extended Function 0 : None 1 : Auxiliary frequency command 1 2 : Auxiliary frequency command 2 3 : PID command 1 5 : PID feedback amount 6 : Ratio setting 7 : Analog torque limit value A 8 : Analog torque limit value B 20 : Analog input monitor Saving of Digital Reference Frequency Reference Loss Detection (Continuous running frequency) 0 : Automatic saving (when main power is turned OFF) 1 : Saving by pressing Torque Detection 1 (Level) 0% to 300% (Timer) 0. 01 to 600. 00 s Torque Detection 2/(Level) 0% to 300% Low Torque Detection (Timer) 0. 01 to 600. 00 s Terminal [FWD] Function Terminal [REV] Function Selecting function code data assigns the corresponding function to terminals [FWD] and [REV] as listed below. 0 (1000): Select multi-frequency (0 to 1 steps) 1 (1001): Select multi-frequency (0 to 3 steps) 2 (1002): Select multi-frequency (0 to 7 steps) 3 (1003): Select multi-frequency (0 to 15 steps) 4 (1004): Select ACC/DEC time (2 steps) The shaded function codes ( ) are applicable to the quick setup. 0 0 1 5 0 30. 00 0. 010 0 *1 1 2 *4 10. 00 0 0 0 1 999 100 10. 00 20 20. 00 98 (SS1) (SS2) (SS4) (SS8) (RT1) 0 : Decelerate to stop, 20% to 120%, 999: Disable *1 The factory default differs depending upon the shipping destination. *2 6. 00 s for inverters with a capacity of 22 kW or below; 20. 00 s for those with 30 kW or above. *4 The motor rated current is automatically set. [. . . ] Install the inverter on nonflammable material such as metal. Ensure that the installation location meets the environmental conditions specified in "Environment" in inverter specifications. ¥ Megger test When checking the insulation resistance of the inverter, use a 500V megger and follow the instructions contained in the Instruction Manual. ¥ Vibration When the motor is mounted to a machine, resonance may be caused by the natural frequencies, including that of the machine. Operation of a 2-pole motor at 60Hz or more may cause abnormal vibration. * Study use of tier coupling or dampening rubber. [. . . ]