Professional maintenance Emerson power products, Kay Han energy Emerson HD22010-3, HD22020-3 rectifier module common fault performance: A power indicator (green) off, bright, C, fault indicator and protection indicator (yellow) ( red) light, digital tube flashes, The charging module indicating a fault code (current). Emerson HD22010-3, HD22020-charging module LED status indication Common Failures and measures as follows. I. Emerson HD22010-3, HD22020-3 DC panel charging module current fault Emerson HD22010-3, HD22020-3 DC panel charging module current means to share the load connected to the same bus module outputs the same current. If you found the seriously uneven flow HD22010-3, HD22020-3 modules, using the following exclusion will replace the faulty module. Sure the modules are current damage as follows: 1-by-module check current busbar is connected, the current line is connected correctly, Emerson rectifier module HD22010-3, HD22020-3 is in under automatic working condition. Completely disconnected Emerson Charging Module HD22010-3, HD22020-3 flow and communication cables, separate open a charging module. Be HD22010-3, HD22020-charging module is open to Emerson charging module of rated load 1/3 to 2/3 of the rated current. Measured with a multimeter DC voltage profile Emerson Charging Module HD22010-3, HD22020-positive and negative flow between the busbar voltage, under normal circumstances, should be around 0.6 ~ 1.2V. 5 individually check each HD22010-3, HD22020-3 the charging module flow under load bus voltage, the voltage is normal, if the load status measured None voltage, Emerson charging current circuit module has been damaged. Emerson rectifier module HD22010-3, HD22020-3 before leaving the factory has strict current debugging, Emerson module in automatic control mode, any module is set to the same output voltage does not need to make any current adjustment, Emerson charging module HD22010-3, HD22020-3 does not provide external adjustment device.