Shutdown Procedure - Visicomm Industries 160KSS360400/50400 User Manual

Frequency converter
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3.2.

SHUTDOWN PROCEDURE

If you want to shutdown the converter completely (no power at the output or inside),
please follow the steps below.
a. Open the Output breaker.
disconnected externally prior to opening the Output breaker, the output terminals will
maintain a DC voltage due to filter capacitors on the output terminals. Before contacting
these terminals they should be discharged.
Output Neutral terminal before contacting these terminals.
b. Push the INVERTER OFF switch and the CONTROL switch simultaneously -- This will
remove power from the load and turn off the inverter.
c. Open the rectifier breaker -- Opening the rectifier breaker will remove the power source
from the internal DC bus and the internal DC supply will slowly drop.
Internal DC capacitors to discharge.
d. Open the reserve breaker -- Before opening the reserve breaker, always make sure
there is no critical load connected to the output.
e. The converter is completely shut off. None of the LEDs or the LCD display should be lit.
Open the utility breaker feeding power to the converter.
inside or outside of the converter.
the internal capacitor bank is fully discharged.
WARNING – If there is no load or the load has been
Discharge each output terminal to the
If you plan to access the inside of the unit, make sure
12
Wait 5 min for the
There is now no power on the

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