Products
Chuaneng soft start (90KW and above)
CN-SCKR series soft starter, with MCU as the core and intelligent digital control, is suitable for starting squirrel-cage asynchronous motors with various loads; it can enable the motor to start smoothly under any working conditions and is well protected The drag system reduces the impact of the starting current on the power grid and ensures reliable starting of the motor; smooth deceleration and parking can eliminate the anti-inertia impact of the drag system; the complete system protection function extends the service life of the system, reduces the system cost, and improves the system High reliability; compatible with various functions of all starting equipment, it is the most ideal replacement product for traditional star-delta, auto-coupling step-down starting, magnetic control step-down starting, etc.
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Chuanneng soft start (90KW and above)
CN-SCKR series soft starter, with MCU as the core, adopts intelligent digital control, is suitable for the start of squirrel cage asynchronous motors of various loads; it can make the motor start smoothly under any working conditions, and has good protection. The drive system reduces the impact of the starting current on the power grid and ensures the reliable starting of the motor; smoothly decelerates to stop, which can eliminate the anti-inertial impact of the drive system; complete system protection functions extend the service life of the system, reduce the system cost, and improve the system Reliability; Compatible with various functions of all starting equipment, it is the most ideal replacement product for traditional star-delta, auto-coupling step-down starting, magnetic control step-down starting, etc.
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Chuaneng soft start (75KW and below)
CN-SCKR series soft starter, with MCU as the core and intelligent digital control, is suitable for starting squirrel-cage asynchronous motors with various loads; it can enable the motor to start smoothly under any working conditions and is well protected The drag system reduces the impact of the starting current on the power grid and ensures reliable starting of the motor; smooth deceleration to stop can eliminate the anti-inertia impact of the drag system; the complete system protection function extends the service life of the system, reduces the system cost, and improves the system High reliability; compatible with various functions of all starting equipment, it is the most ideal replacement product for traditional star-delta, auto-coupling step-down starting, magnetic control step-down starting, etc.
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Chuanneng soft start (75KW and below)
CN-SCKR series soft starter, with MCU as the core, adopts intelligent digital control, is suitable for the start of squirrel cage asynchronous motors of various loads; it can make the motor start smoothly under any working conditions, and has good protection. The drive system reduces the impact of the starting current on the power grid and ensures the reliable starting of the motor; smoothly decelerates and stops, which can eliminate the anti-inertial impact of the drive system; the complete system protection function extends the service life of the system, reduces the system cost, and improves the system Reliability; Compatible with various functions of all starting equipment, it is the most ideal replacement product for traditional star-delta, auto-coupling step-down starting, magnetic control step-down starting, etc.
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The keyboard panel LCD displays: overcurrent during addition, subtraction, and constant speed. For short-term high-current OC alarms, generally there is a problem with the current detection circuit of the driver board. The module may also have been impacted (damaged), and the fault may continue to occur after reset. The reasons are basically as follows: : The arc effect occurs when the motor cable is too long, the output leakage current is too large due to critical cable selection, or the load current increases due to loose output cable joints and damaged cables.
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Keyboard panel LCD display: plus, minus, overcurrent at constant speed. For short-term high-current OC alarms, in general, there is a problem with the current detection circuit of the drive board, and the module may have been impacted (damaged), and it may continue to malfunction after reset. The causes are basically the following situations : The arc effect when the load current rises caused by the excessively long motor cable, the excessive output leakage current caused by the critical cable selection or the loose output cable connector and the cable damage.
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ABB frequency converter maintenance
For the ACS300 inverter, a common fault is damage to the switching power supply. The ACS300 inverter switching power supply uses a waveform generator integrated block called LT1244 with similar functions to the UC3844. It is affected by sudden changes in the working voltage and the effects of the switching power supply. Damage to the load often causes damage to the integrated block. Due to long years of use, the electrolytic capacitor has also reached its service life, and the capacitor used for filtering has become the direct cause of damage to the switching power supply.
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