as2ipm drive repair | Shenyang on China (certified) | Sanhao drive repair on China by Shenyang Electric Limited. Shenyang on China Electric Co. (www.zsmsy.com) is specialized in the "high-low-voltage inverter, high and low voltage soft starter, magnetic switches, programmable logic controller (PLC)" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Wei Song. Drive repair Overvoltage protection overvoltage generated causes and treatment methods: ① supply voltage is too high ② ③ deceleration time is too short deceleration process, the regenerative braking discharge unit is not working for you, too late discharge, increase the external braking resistance and braking unit ④ Check the discharge circuit has no fault abbacs510 drive repair, does not actually discharge; for very small power inverter drive repair damaged discharge resistor problem set for what specific measures the interference problem? Measures to interfere party (frequency converter) ...... ① conducted interference with interference filters, using interference filters on the input side (input only), a zero-phase reactor, ground capacitance, insulation transformer on the input side. ② inductive interference ...... input / output lines, power lines, signal lines separated. Shielded wire powtran drive repair, and use the power line filters (shared choke ring) jp64t9 drive repair, properly grounded. ③ radiation interference ...... attention control cabinet installation and power line metal pipes. Reduce the carrier frequency is also effective. For interference side (drive) measures the volume and large, the price is high. Countermeasures for being interfering wires if disturbed or object clear, then it for processing. If you do not clear it in the following order processing: ① as far away from the inverter. ② signal lines using shielded cable, and only one end of the shield and the common terminal phase. ③ You can also use the magnetic and filter capacitor. ④ into the power line filters (normal state chokes, small noise filter) in the power line. ⑤ separate ground wire