ABB ACA 6 Series, Hardware Manual

Page: 92 / 102

Chapter 5 – Commissioning the Drive Section
5-6 ACS 600 MultiDrive
3. Frames R7i to R12 equipped with a Disconnecting Switch with Charging Circuitry
Turn the main disconnecting switch (switch fuse) of the drive
section to the CHARGE position. (A locking mechanism will
prevent you from turning the handle further.) Keep the
handle in this position a few seconds until the beeping
sound stops, indicating that the intermediate circuit
capacitors have been charged.
Relieve the handle slightly to release the locking
mechanism, then turn it to the ON position.
DRIVE SECTION NOT EQUIPPED WITH A MAIN SWITCH
Go to the next step (POWERING THE DRIVE SECTION).
POWERING THE DRIVE SECTION
WARNING! Before power switch-on, make sure that a sufficient inverter power is
connected to the intermediate circuit. Rules of thumb:
1. The sum power of the inverters connected must be at least 30% of the sum power
of all inverters.
2. The sum power of the inverters connected must be at least 30% of the rated power
of the braking section ( P
br.max
) if present.
If the above mentioned rules are not followed, the DC fuses of the connected
inverter(s) may blow or the braking chopper (if used) may be damaged.
Ensure that the number of inverters connected to the
intermediate circuit is sufficient. See the WARNING above.
Close the main contactor (or circuit breaker) of the Supply
Section. The drive section is powered.
Action Information