DNH DHVC5000 Series, Use Manual

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2 Chapter 2 Trial Run
This section describes the series of steps required for a trial run.
2.1 Trial Run Steps
2.1.1 Check And Screw Fastenings
 Check all safety marks are present, ensure all cabinet components are without damage,
ensure there is no foreign material present in the cabinet.
 Check all connections and wiring, ensure their connections are secure.

Check all components are complete, the circuit boards should be connected securely and
firmly.
 Check the retaining screws for each power unit are fastened tightly, check the optical
fibres are inserted securely.
2.1.2 Connect Control Power Supply
Always confirm the following before connecting the control power supply:
 Check whether the control power supply is correct.
 Check there is a reliable connection between the control circuit terminals and the other
control devices.
 Test whether the control supply voltage is normal.
 Force the cooling fan to run, confirm the following :-
- The rotation direction is correct and consistent.
- If there is any vibration.
 Check whether each control circuit Board is working normally and whether the touch
screen and control device is operating normally.
2.1.3 Display Confirmation of State
After power on, view the state of the MVC on the Main Screen. The MVC will display fault
or alarm information on the Main Screen when a fault or alarm occurs, and specific faults or
alarms may be viewed via the Historical Data Menu. The Main Screen is shown in Fig.2-1.