Boost Voltage Factor; Settings; Voltage Limits; Diagnostics - ABB ACS355 Manual

32 Program features

Boost voltage factor

Boost voltage factor enables increasing the pump speed. When the actual DC bus voltage
is greater than the boost voltage, the pump speed increases by a defined boost factor. The
MPPT algorithm achieves this increased speed limit only if the actual DC bus voltage is
appropriate to the boost factor.


Settings

Parameter
6008 BOOST VOLT
6009 BOOST FACTOR

Voltage limits

The solar pump inverter operates within the voltage limits defined for PV cells and beyond
these limits the inverter trips. At maximum voltage limit, the inverter trips to a
VOLT fault. Below the minimum DC voltage limit, the inverter stops modulating

Settings
Parameter
6004 PV CELL MIN VOLT
6005 PV CELL MAX VOLT


Diagnostics

Fault
PV MAX VOLT

Speed limits

The ACS355 solar pump inverter operates within the defined speed limits set in the group
60 PUMP CONTROL
•
Minimum pump speed—Below this value, inverter stops the pump operation. The
inverter restarts automatically only after the
This operation of the inverter prevents the pump from running at a low speed (where
the pump capacity drops and is near zero).
•
Maximum pump speed—The pump operates within this speed limit defined by MPPT
in 6007 PUMP MAXIMUM
in 2002 MAXIMUM SPEED
Note: Ensure that the pump speed is always defined within the allowed speed limit of the
inverter.
Additional information
DC voltage reference to activate boost factor.
Factor at which the inverter functions the best.
Additional information
Minimum DC voltage below which the inverter cannot
operate.
Maximum DC voltage.
Additional information
Fault message to notify that DC bus voltage in the inverter is
higher than the maximum DC voltage
VOLT).
parameters.
SPD, provided that the maximum speed limit of the inverter
is equal to or higher than this value.
(6005 PV CELL MAX
6019 FAULT RESET
PV MAX
.
TIME, see page 57.