5
3) Use a multimeter to check whether the input voltage of the factory distribution terminal in front
of the power switch is normal.
4) Switch on power supply to power up the interface control board and the temperature controller
for the transformer, and then power up HMI. After about one minute, HMI automatically starts up,
completes initialization and shows the system monitoring interface.
5) Observe HMI for fault alarms and check whether the communication between man-machine
interface and PLC is normal. If no, a communication failure error is reported.
6) For parameter settings, refer to the "Man-Machine Interface" chapter.
7) Check whether the display of the temperature controller on the transformer cabinet is normal.
8) Check whether you can switch off the high voltage breaker properly by pressing the emergency
stop button on the unit control cabinet. Repeat the operation three times and ensure that the high
voltage breaker can be reliably switched off every time.
High Voltage Power-up
The high voltage power can be supplied only after you ensure that all of the above preparations are correct.
Before high voltage power-up, no one is allowed to be close to the frequency inverter cabinet. After high
voltage power-up without abnormality, only operators are allowed to be close to the frequency inverter
cabinet.
1) Keep the transformer cabinet door open and check whether any frequency inverter alarm is
generated or any frequency inverter fault occurs. At this time, the alarm of cabinet door open can
be ignored.
2) Keep all people away from the frequency inverter cabinet.
3) Switch on the high voltage breaker to supply high voltage power to the frequency inverter.
4) Observe whether the fan on frequency inverter cabinet top and the fan at transformer cabinet
bottom both operate normally without abnormal noise. If either or neither of the fans operate,
switch off the high voltage breaker to stop supplying high voltage power to the frequency inverter,
and then conduct circuit check on the fan part, for example, whether the air switch controlling a
fan is off and whether the connection between the fan and the wiring terminal box is loose. If
abnormal noise can be heard, also stop supplying high voltage power to the frequency inverter,
find out and deal with the abnormal noise source.
