220V Cooling Fan Troubleshooting

Power Inverter "220V Cooling Fan" bad - take ACS800,690V drive, for example, rectifier unit and the inverter unit fan is broken, will be reported drive overtemperature protection --- inspection methods, measuring fan is Not really bad, if true replace it; if it is not broke, check the control loops and micro-switch is normal; a common fault is - drive fan panel is damaged, resulting in "220V Cooling Fan" does not turn, resolve Measures can be considered as directly connected to the external power supply fan power supply; if micro switch is bad, for one, or emergency when short micro switch that; after taking these measures to prevent overheating when the drive is actually normal alarm, You can take a temperature sensor, temperature switch contacts connected to the control circuit to go, after overtemperature - can jump stop, protect the drive; if this series inverter rectifier unit and the inverter unit "dota2雷竞技下载 " is not turn, check the DC bus circuit to take power after the initial source of the fan power is DC bus; this series Roof fan does not turn, check the auxiliary power supply control loop;