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

The DC bus also 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:
−
Setting up the filter mode, the harmonic requirements and the reactive power
requirements. Refer to
−
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
information on these topics.
Advanced user requirements have to be set up in the 'installation settings' menu
([/Welcome/Settings/Installation set.]). These advanced functions include:
−
The autorestart function (after power outage).
−
The standby function to switch off the IGBTs when the load requirement is low.
172 Operating instructions  Manual Power Quality Filter PQFS
Figure 84: Filter operation sequence when no fault is present
Section 7.9.1.1
Apply power to filter
auxiliaries
Controllers
running,
DC
capacitors
charging
Start filter
DC capacitors
preload check
Close MC,
start fans
Start-up sequence
Start IGBTs and
3, 4- wire
connectivity
check
Network
identification
Operation as
programmed
Stop filter
Open MC
for detailed information on these topics.
Section 7.9.1.4 for detailed