Nagano Keiki-505293模块备件

Granville-Phillips-505361

TION The ALTIVAR® 66 drive controller is software driven. The factory default settings may require reconfiguration. If the factory settings do not match the requirements of your application, or if you must reconfigure the drive controller for a new application, refer to the Level 1 & 2 Configuration Manual. Generally, at least four key parameters should be checked and adjusted if necessary prior to motor operation: • Nominal Current • Motor Overload • Control Type • Rotation Normalization (Note: Changing the wiring of drive controller line terminals L1, L2, and L3 does not affect the motor rotation direction). If the ALTIVAR 66 drive controller is supplied as part of a larger system, also refer to the documentation supplied with the system for applicable configuration settings. The drive controller is equipped with a number of control algorithms and features for flexibility in application. Self-tuning is incorporated into several of the control algorithms to allow optimal control of the motor. The factory default control type, Normal control, incorporates such a feature. Observe the following precautions when using Normal or High Torque control types: • The adjustment range of the Nominal Current parameter is 45% to 105% of the drive controller rated output current, allowing the use of motors with horsepower equal to or one horsepower size less than the drive controller horsepower. To adjust the Nominal Current parameter, see the Level 1 & 2 Configuration Manual. • Before powering up for the first time, compare motor nameplate current rating with output current in Table 1, 2, 3, 5, 6 or 7, depending on drive controller configuration. If the motor rating is not within 45% to 105% of the value in the table, it is necessary to use a different drive controller. For the ATV66U41N4, use the output current corresponding to motor horsepower and set Motor Power parameter for that value. See the Level 1 & 2 Configuration Manual. Bulletin No. VD0C06S304E Chapter 3—Start-Up January 1999 Factory Settings © 1994 Square D All Rights Reserved 67 • When the drive controller is powered up, direct current equal to the motor rated current is injected into the motor, allowing the drive controller to determine the resistance of the motor and set the motor parameters. • For optimal torque performance, operate the drive controller and motor under no load at 50/60 Hz during initial commissioning or any time the motor is changed. This allows the drive controller to measure key motor parameters. • The Nominal Current parameter must be set on the drive controller keypad display to match the motor full load current rating. If the Nominal Current parameter cannot be adjusted to the motor full load current, Normal and High Torque control types cannot be used for the application. • For multiple motor applications, contact your local representative. FACTORY SETTINGS The ALTIVAR 66 drive controller is factory set to meet most applications. If the following values are compatible with the application, the drive controller can be started up. If the values listed below do not match the requirements of your application, change their settings with the keypad display. For detailed use of the keypad display, refer to the Level 1 & 2 Configuration Manual. Table 27: Factory Settings – Functions Function Factory Setting Nominal Output Voltage and Frequency Automatically set at first power-up according to the input frequency: 50 Hz input: 400 V (ATV66•••N4 units); 230 V (ATV66•••M2 units) 60 Hz input: 460 V (ATV66•••N4 units); 230 V (ATV66•••M2 units) Nominal Current 0.9 times permanent output current of drive controller Volts/Frequency Law Normal linear law IR compensation preset at 100% Slip Compensation On and automatic Operating Frequency Range 50 Hz input: 0.1 to 50 Hz 60 Hz input: 0.1 to 60 Hz MOTOR OVERHEATING Each time the drive controller is powered up with Normal or High Torque control type selected, direct current equal to the drive controller rated current is injected into the motor. Do not use motors with a full load current rating that is not within the adjustment range of the drive controller Nominal Current parameter. Failure to follow this instruction can result in injury or equipment damage. CAUTION Chapter 3—Start-Up Bulletin No. VD0C06S304E Control Types January 1999 68 © 1994 Square D All Rights Reserved CONTROL TYPES The control type affects the amount of available motor torque. The control type setting is dependent on the type of motor used and the application. The following paragraphs describe control types. For information on changing the control type, see the Level 1 & 2 Configuration Manual. Normal The Normal control type is the factory setting for both constant and variable torque configurations. Normal is a sensorless flux vector control. In order to create high torque at low speeds, the drive controller maintains a 90° phase relationship between the rotor and stator electromagnetic fields by continuously calculating the position of the rotor in relation to the electrical position of the stator. It is generally applicable on asynchronous motors and provides good torque performance. Because there are fewer parameters than Ramp Times Acceleration: 3 s Deceleration: 3 s Ramp time: automatically adapted in case of overtorque Braking-To-Standstill (low speed) Automatic by DC injection for 0.5 s when frequency drops below 0.1 Hz DC current level: 0.7 times the permanent output current of drive controller Motor Thermal Protection 0.9 times continuous output current of drive controller, see page 70 Jog Function Speed: limited to 5 Hz Ramp time: 0.1 s Time between two pulses: 0.5 s Control Scheme Two-wire control Table 28: Factory Settings – Inputs and Outputs Inputs and Outputs Terminal Factory Setting Programmable Logic Inputs LI1 Run Enable No LI2 Run Forward No LI3 Run Reverse Yes LI4 Jog Yes Analog Inputs AI1 Speed Reference 1 Yes AI2 Speed Reference 2 Yes Logic Outputs LO1 At Speed Yes LO2 Current Limit Yes R1 Fault No R2 Running State Yes Analog Outputs AO1 Motor Speed Yes AO2 Motor Current Yes Table 27: Factory Settings – Functions (Continued) Function Factory Setting Bulletin No. VD0C06S304E Chapter 3—Start-Up January 1999 Control Types © 1994 Square D All Rights Reserved 69 with the High Torque control type, the process requires less tuning. When using Normal control, the motor horsepower must be equal to or one horsepower size less than the drive controller horsepower. When Normal control type is used on a constant torque configuration, selftuning is active. When the drive controller is powered up, a pulse of direct current equal to motor rated current is injected into the motor, allowing the drive controller to determine the resistance of the motor to set the motor parameters. High Torque High Torque control is also sensorless flux vector control, available when the drive controller is configured for constant torque. In order to create high torque at low speeds, the drive controller maintains a 90° phase relationship between the rotor and stator electromagnetic fields by continuously calculating the position of the rotor in relation to the electrical position of the stator. High Torque provides more flexible setup and optimized parameters than the Normal control type, therefore offering better torque performance. Select this control type when controlling only one motor in constant torque configuration. When using High Torque control, the motor horsepower must be equal to or one horsepower size less than the drive controller horsepower. When High Torque control type is used, self-tuning is active. When the drive controller is powered up, a pulse of direct current equal to motor rated current is injected into the motor, allowing the drive controller to determine the resistance of the motor to set the motor parameters. Special The Special control type, available when the drive controller is configured for constant torque, maintains a constant volts/frequency ratio throughout the speed range. For example, if the voltage to the motor is 460 V at 60 Hz, it will be 230 V at 30 Hz, functioning as a current limited power supply. Use Special control when controlling synchronous permanent magnet motors, synchronous wound-field motors, and synchronous reluctance motors. NOLD (No Load) NOLD control is only available when the drive controller is configured for variable torque. This function maintains a constant volts/frequency ratio during acceleration. Once the motor is stable, however, voltage to the motor is automatically reduced as a function of load. At light load, the motor voltage is minimized, even at motor base speed. This reduces audible motor noise without reducing motor RPM. NOLD control should not be used with motors in parallel. For more information, see the Level 1 & 2 Configuration Manual. Chapter 3—Start-Up Bulletin No. VD0C06S304E Motor Thermal Overload Protection January 1999 70 © 1994 Square D All Rights Reserved MOTOR THERMAL OVERLOAD PROTECTION • ALTIVAR 66 drive controllers provide indirect motor thermal protection by continuously calculating the theoretical thermal state of the motor. The drive controller will trip if this state reaches 109% of nominal current. • The microprocessor calculates the theoretical thermal state of the motor from: — Motor thermal time constant based on assumed motor power — Operating frequency — Current absorbed by the motor — Running time — Assumed maximum ambient temperature of 40 °C around the motor LOSS OF MOTOR OVERLOAD PROTECTION When using external overload relays connected to drive controller output, overload relay must be capable of operation over the expected range of drive controller output frequencies (including direct current). When DC injection braking is used: • Overload relay must be suitable for operation with direct current flowing to the motor. • Do not use overload relays equipped with current transformers for sensing the motor current. Failure to follow these instructions can result in equipment damage. CAUTION MOTOR OVERHEATING This drive controller does not provide direct thermal protection for the motor. Use of a thermal sensor in the motor may be required for protection at all speeds and loading conditions. Consult motor manufacturer for thermal capability of motor when operated over desired speed range. Failure to follow this instruction can result in injury or equipment damage. CAUTION Bulletin No. VD0C06S304E Chapter 3—Start-Up January 1999 Adjustment of Motor Overload © 1994 Square D All Rights Reserved 71 Figure 32: Thermal Curves (Constant Torque) • External thermal overload relays are required when more than one motor is connected to the output or when the motor connected to the drive controller is less than half of the drive controller rating, or with a permanent magnet or wound-field motor. See Table 29 on page 76. • The thermal state of the drive controller is not automatically reset when power is removed. ADJUSTMENT OF MOTOR OVERLOAD To adjust Motor Overload, first select the type of protection in the 7.4 → Fault Management menu. Four types of protection are available from the Motor Overload screen: • Self-Cooled Motor • Forced-Ventilation Motor • Manual Tuning • No Thermal Protection The drive controller is factory set for a self-cooled motor. Once the type of protection is selected, the Motor Overload current can be set in either the 1 → Parameter Setting menu or in the 7.4 → Fault Management menu. Motor Overload can be adjusted from 0.45 to 1.15 times the nominal drive controller current, factory preset at 0.9 times the nominal drive controller current. Adjust Motor Overload value to nominal motor current. For more information on configuring the drive controller, refer to the Level 1 & 2 Configuration Manual. 0.7 t 6 5 24 20 36 30 60 Hz 50 Hz 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1 h 10 min 4 min 2 min 1 min 10 s cold hot I/In Note: for variable torque configuration, use the same curves but limit overload to I/In = 1.1. Chapter 3—Start-Up Bulletin No. VD0C06S304E Available Motor Torque January 1999 72 © 1994 Square D All Rights Reserved AVAILABLE MOTOR TORQUE Continuous Duty For continuous duty reduced speed applications, motor torque de-rating may be necessary. This de-rating is linked to two causes: • Although the current waveform is similar to a sine wave, motor heating is slightly greater than when operating directly from the input line supply. The resulting torque de-rating is approximately 5%. For 1.0 service factor motors, de-rating must be considered when choosing the continuous torque production capability of the motor at nameplate speed. For 1.15 service factor motors, de-rating of motor continuous torque capability is not required at nameplate rated speed. • For self-ventilating motors, ventilation produced by the internal shaft fan decreases as speed is reduced, therefore requiring de-rating of the maximum continuous torque capability of the motor. Generally, the required de-rating occurs at approximately 50% of nameplate motor speed. Since motor designs vary, consult the motor manufacturer for the required derating for a specific motor. Overtorque Capability and Speed Range The driving overtorque capabilities of a given motor are determined by: the motor NEMA design category (Design B, Design D, etc.), no-load (magnetizing) current of the motor at nameplate speed, maximum transient output current of the drive controller, and the applied V/Hz at reduced speed. Maximum transient overtorque capability is typically: • Normal (constant torque and variable torque) and High Torque (constant torque) control types: — ATV66U41N4 to D12N4 and ATV66U41M2 to D12M2: 170% (constant torque) or 110% (variable torque) over 50:1 speed range — ATV66D16N4 to C31N41 and ATV66D16M2 to D46M2: 150% (constant torque) or 110% (variable torque) over 50:1 speed range • Special (constant torque) and NOLD (variable torque) control types: — ATV66U41N4 to C31N41 and ATV66U41M2 to D46M2: 150% (constant torque) or 110% (variable torque) over 10:1 speed range With Special and NOLD control, the motor overtorque capability begins to decrease below 50% of motor nameplate speed. To improve low speed overtorque performance, adjust the Voltage Boost parameter. See the Level 1 & 2 Configuration Manual. Bulletin No. VD0C06S304E Chapter 3—Start-Up January 1999 Available Motor Torque © 1994 Square D All Rights Reserved 73 Overspeed Operation (f ≥ 50/60 Hz) With an adjustable frequency drive controller, operation at speeds greater than motor nameplate speed may be possible. The following must be considered: • The drive controller is incapable of producing additional output voltage when operating above the nominal output frequency (generally 50/60 Hz). When operating above the nominal output frequency, the available continuous motor torque will begin to decrease along with the motor maximum overtorque capability. Consult the motor manufacturer for continuous and overtorque torque capabilities of the particular motor. Regenerative Operation A dynamic braking kit must be installed if regenerative torque is required. Overtorque capability in the regenerative mode is similar to overtorque in the motoring mode. For continuous regeneration applications, consult the factory. For C10 through C19 controllers, a “B” suffix is required for dynamic braking operation. Driving Torque Production Envelope Figures 33 and 34 illustrate typical continuous torque and overtorque driving capability for a typical NEMA Design B, 1.0 service factor motor with constant torque (Figure 33) and variable torque (Figure 34) loads. For 1.15 service factor motors, the continuous torque rating is 1.0 times the motor rated torque value from 50 to 100% of motor nameplate rated speed. • Normal (constant torque and variable torque) and High Torque (constant torque) control types: — 100% torque typical at 50% of nominal frequency (over 2:1 speed range) — Torque decreases linearly to 50% at 0.1 Hz • Transient overtorque, typical ±10%: — ATV66U41N4 to D12N4 and ATV66U41M2 to D12M2: 170% torque for 60 s (constant torque); 110% torque for 60 s (variable torque). MACHINERY OVERSPEED Some motors and/or loads may not be suited for operation above nameplate motor speed and frequency. Consult motor manufacturer before operating motor above rated speed. Failure to follow this instruction can result in injury or equipment damage. CAUTION Chapter 3—Start-Up Bulletin No. VD0C06S304E Motor Considerations January 1999 74 © 1994 Square D All Rights Reserved — ATV66D16N4 to C31N41 and ATV66D16M2 to D46M2: 150% torque for 60 s (constant torque); 110% torque for 60 s (variable torque). • Special (constant torque) and NOLD (variable torque) control types: — 100% torque typical at 50% of nominal frequency (over 2:1 speed range) — Torque decreases linearly to 50% at 10% of nominal frequency — Transient overtorque, typical ±10%: ATV66U41N4 to C31N41 and ATV66U41M2 to D46M2: 150% torque for 60 s (constant torque); 110% torque for 60 s (variable torque). Figure 33: Typical Constant Torque Curves Figure 34: Typical Variable Torque Curves MOTOR CONSIDERATIONS Many factors must be considered when controlling a motor with a drive controller. The following sections describe several drive controller characteristics as they relate to motor protection and performance. 1.5 1.2 1 0.5 0.5 Fn Fn f T/Tn 2 1 3 0.1 Fn 0.95 1 Continuous useful torque: self-ventilated motor 2 Continuous useful torque: force-cooled motor 3 Transient overtorque Fn = nominal frequency 0 1.1 1 0.7 0.5 0.3 0 Fn Fmax T/Tn f 0.1 Fn 3 2 1 1 Continuous useful torque 2 Transient overtorque 3 Transient overtorque during acceleration Fn = nominal frequency Bulletin No. VD0C06S304E Chapter 3—Start-Up January 1999 Motor Considerations © 1994 Square D All Rights Reserved 75 Motor Insulation ALTIVAR 66 drive controllers use pulse width modulation. Verify that the motor insulation is designed for this modulation method. Motors in Parallel Figure 35: Motors in Parallel To operate motors in parallel, use the keypad display to set the Control Type to “Normal.” When motors are in parallel, slip compensation is not at the optimum level. If the load is to be shared between the motors, disable the slip compensation. For information on adjusting and disabling parameters, see the Level 1 & 2 Configuration Manual. If three or more motors are to be installed in parallel, consult factory. Output Contactor Between Motor and Drive Controller When using an output contactor between the drive controller and motor, use of the Bypass application function is recommended. In order to set the motor parameters for optimum performance, the motor must be directly connected to the output of the drive controller at least one time during drive controller power-up. For more information, refer to the Level 1 & 2 Configuration manual. Additional Motor Connected Downstream of the Drive Controller When connecting an additional motor, comply with the recommendation for “Motors in Parallel.” Figure 36: Connecting an Additional Motor If the motor will be connected to the drive controller while the drive controller is running, the sum of the running motor current(s) plus the expected starting current of the switched motor must not exceed 90% of the drive controller’s transient output current rating. Drive controller selection: • Drive controller In ≥ In1 + In2 + … Inx • Drive controller Pn ≥ Pn1 + Pn2 + … Pnx • Protect each motor with a thermal overload relay In: rated current Pn: rated power Drive Controller In1 In2 Inx M1 M2 Mx Drive Controller KM1 OL1 OL2 M2 M1 Chapter 3—Start-Up Bulletin No. VD0C06S304E Motor Considerations January 1999 76 © 1994 Square D All Rights Reserved Using a Synchronous Permanent Magnet or Wound-Field Motor It is possible to operate a synchronous permanent magnet or synchronous wound-field motor as long as the following conditions are met: • Slip compensation is disabled. • Internal overload protection is disabled and external protection (overload relay or thermal sensor) is used. • Operation is only with Special control type with constant torque setting. • Appropriate field excitation and protection is provided for externally-excited motors. Using a Synchronous Reluctance Motor It is possible to operate a sy