64 | Description of the menu
Power Quality Controller – PQC | Operating Manual | FRAKO
One input can be used to switch between control profiles 1 and 2. This is configured
in the PQC by navigating as follows:
Main menu > Parametrization > Temp. I/O
(dyn.)
. When this option is active, profile switching takes place exclusively via this
input (no profile switching is then possible from the PQC menu or optional Modbus
RTU interface) and only between the stored control profiles 1 (input 1: low level) and
2 (input 1: high level).
The digital inputs are suitable for electrical signals from 5 V DC up to a maximum of
24 V DC.
The digital outputs (open collector type) are suitable for an externally applied voltage
up to a maximum of 24V DC and a maximum current of 100 mA.
6.3.7 Service
Main menu > Parametrization > Service (password protected)
6.3.7.1 Start-up
Main menu > Parametrization > Service > Start-up
Section 5.3.2 “PQC initial start-up”.
6.3.7.2 Manual control
Main menu > Parametrization > Service > Manual control
ATTENTION!
Risk to equipment!
Switching in capacitor stages manually can result in overcorrection of the
system. This can cause other problems, such as resonance-induced over-
voltage in the supply network and/or damage to the capacitor stages or
other loads connected to the network.
– The supply network must be monitored for resonant conditions and over-
voltage whenever stages are switched in manually.
This menu shows the numbers of the stages (1 to 12),
the status of each stage (ON/OFF), its corrective power
(determined automatically or set manually) and its switch-
ing cycles.
