Description
The SC753A-001-01 is a high-performance servo controller in the SC750 Servo Drives by Pacific Scientific. This robust device boasts digital position, velocity, and torque control for brushless servo motors. It operates at a power level of 7.5A continuous and 15A peak. The device is distinctively engineered with a 12 bit RDC (+/-22 arcmin, 1024 ppr), making it a Standard Unit in the SC750 Series. Notable features of the SC753A-001-01 include the Servo Controller (SC) label from the 7 series, a function code of 5 indicating it's a position controller with a resolver, a power level code of 2, which corresponds to 3.8 A Continuous / 7.5 A Peak, and a customization code of 001, which signifies it as a Standard Unit. The 01 suffix refers to the integrated PacSci ServoBASIC Plus� Programming language with 24K user memory. Packed with fully digital controls, this servo controller enables optimal performance and features rugged single resolver feedback. It facilitates the use of the complete front access and provides intelligent motion control, ideal for various environments. The SC753A-001-01 integrates advanced technology with the performance benefits typical of analog implementations, but with the precision of digital control. It provides hassle-free operation and drift-free setup, continually delivering torques between 4.8 lb-in. to 451 lb-in, and peak torques from 10 lb-in. to 800 lb-in, far surpassing real-world applications' expectations and demands. Specs: 7.5 Amps Continuous (RMS) 15 Amps peak 115 / 230 VAC Digital and analog I/O IGBT Power Stage Digital Auto Tune Fully programable for sophisticated motion control Personality parameters saved in drive High performance microcontroller technology Resolver based drive with encoder emulation output
Drive control mode (1) PWM control (Shadik driver) PWM control technology: control the on-off and off-off of semiconductor switching devices, so that the output end can get a series of pulses with equal amplitude and unequal width, and use these pulses to replace sine waves or other required waveforms. By modulating the width of each pulse according to certain rules, the output voltage of the inverter circuit can be changed, and the output frequency can be changed. Advantages: 1) Low noise; 2) High efficiency at full load and can work in continuous conduction mode; 3) The ripple voltage is small; 4) The switching frequency is fixed, so the noise filter design is easier and the noise elimination is simpler; 5) The control method is easy to implement. Cons: 1) Due to the influence of the error amplifier, PWM loop gain and response speed are limited, PFM has a fast response speed; 2) PWM is less efficient at low load. 3) PFM control (Panasonic Drive)
The frequency of the modulated signal varies with the amplitude of the input signal, and its duty cycle is unchanged. Because the modulated signal is usually a square-wave signal with a change in frequency, PFM is also called square-wave FM.
Advantages:
1) The main advantage of PFM compared with PWM is efficiency;
2) PFM has the advantage of low static power consumption;
3) No finite flow function can not work in continuous conduction mode;
4) Compared with PWM, the output current of PFM is small;
For PFM and PWM with the same peripheral circuit, the peak efficiency PFM is comparable to PWM, but before the peak efficiency, the efficiency of PFM is much higher than that of PWM, which is the main advantage of PFM
Cons:
1) Filtering is difficult (harmonic spectrum is too wide);
2) The PFM frequency is lower than the PWM frequency, which will cause the output ripple larger than the PWM;
3) PFM control is more expensive than PWM control.
The company focuses on DCS, PLC, robot, large servo four systems
The main products are various modules/cards, controllers, touch screens, servo drivers
Company advantage: Supply imported original products, professional production of spare parts
One year warranty, fast delivery time, complete supply !！！
① 24 hours email response (12 hours);
② For shipment outside Asia, please contact the seller.
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