Modifying The User Requirements - ABB PQFS Installation, Operation And Maintenance Instructions

The DC bus incorporates discharge resistors that can discharge the DC bus in 25
minutes.
9.3

Modifying the user requirements

Providing that the filter locks have not been engaged, the user can change the customer
settings to better suit his needs. These settings can be accessed in the PQF-Manager
menu [/Welcome/Settings/Customer set.].
The user requirements can be divided into the following categories:
Advanced user requirements have to be set up in the 'installation settings' menu
([/Welcome/Settings/Installation set.]). These advanced functions include:
Figure 88: Filter operation sequence when no fault is present
· Setting up the filter mode, the harmonic requirements and the reactive power and
balancing requirements. Refer to
topics.
· Setting up alarms, warnings and digital I/O. The digital I/O allows configuration of
the filter to operate in remote control mode etc. Refer to
detailed information on these topics.
· the autorestart function (after power outage)
· the standby function to switch off the IGBTs when the load requirement is low
· the system clock setup
Apply power to filter
auxiliaries
Controllers
and fan(s)
running,
DC
capacitors
charging
Start filter
DC capacitors
preload check,
3, 4- wire
connectivity
check
Start-up sequence
Close MC
Start IGBTs
Network
identification
Operation as
programmed
Stop filter
Open MC
Section 7.7.1.1
Manual Power Quality Filter PQFS ç Operating instructions 137
for detailed information on these
Section 7.7.1.2 for