How to solve the alarm problem of European DC drive?

The drive alarm can be directly seen in the display. The drive hardware is equipped with two digital outputs indicating the alarm state (B6 normal, B7 ready). The alarm signal is generated by the combination of gate circuit inside the "normal" logic variable. If the normal variable is not output, the armature current is prohibited, and the main contact trip. When a fault alarm occurs, the man-machine interface display automatically displays the alarm state, the "normal" output (B6) becomes low, and the "Normal HEALTH" indicator on the front panel is off. When C3 starts the input terminal or C4 starts the input terminal again, the drive will RESET (the parameter "TRIP RESET" must be set to "true" automatically reset), and the "normal" output will be reset at the same time. Or, press the key "E" on the operating keyboard to display the multiple bits. Part of ALARMS can be prohibited through the sub-menu of "INHIRIT ALARMS" in "SETUP PARAMETERS set Parameters", so it can be masked. See "INHIRIT ALARMS".

The man-machine interface display has two parts to display "alarm status" and "last alarm", "alarm status" shows the sum of all the alarm hexadecimal code values, the last alarm is the first alarm name of the last alarm. After an alarm occurs, the HEALTH STORE normal memory displays the first alarm that has occurred and caused the trip, and the HEALTH WORD normal word displays the current fault hexadecimal code for all alarms. Both of these are accessible through the serial line. For further diagnosis and treatment. Therefore, if the drive trip due to "5703 reception failure", the HEALTH STORE memory will display 0x0800, and the fault HEALTH WORD will display the sum of the hexadecimal code values of "5703CV error" alarm and "3 phase fault" alarm, namely 0x0800 and 0x0200. The sum is 0x0A00. If the drive trips due to "thermistor", the HEALTH STORE memory will display 0x0010, and the fault HEALTH WORD will display the sum of "thermistor" and "3-phase fault", which is 0x0210.

The fault monitor continuously monitors all alarm states, so after a certain time, when the motor temperature drops, it will return to 0x0200. If the C3 start input terminal is restarted, both displays will display 0x0000, and the display of the man-machine interface will only be displayed in the "Alarm Status"/" Last alarm "sub-menu, and will remain unchanged, unless another trip alarm occurs, or the auxiliary power is switched off or on, in the latter case, The Last Alarm sub-menu will display Invalid Alarm. Most drive alarms are accompanied by a delay timer, so the alarm becomes active only if the fault state exists for the entire delay period.