Solar Pump Control - ABB ACQ80 Firmware Manual

44 Program features
(40.96) is used as the speed limit instead of the defined maximum pump speed
(79.52).
Process PID output %
(40.96)
100% = Pump maximum
speed (79.52)
Pump maximum speed
(79.52)
Settings
Parameter group
(page 190).

Solar pump control


The solar pump control feature can be used to select one of five operation
modes of the solar pump drive-in parameter.
The drive
• starts when the actual DC bus voltage is equal to or greater than PV cell
minimum voltage (79.42)
• stops when the actual DC bus voltage is less than PV cell minimum voltage
(79.42).
The maximum voltage at which the drive trips
with parameter
79.43 PV cell max
pump starts or stops is defined with parameter
The pump
• starts when the actual DC bus voltage is equal to or greater than the voltage
defined in the Start DC voltage (79.41)
• stops when the actual DC bus voltage is less than Start DC voltage (79.41).
To make sure that drive is ready and has sufficient DC voltage to start running
the pump motor, the value of parameter
equal or higher than
Note: The drive must be kept in external mode for the below modes. MPPT
control program functions only in external mode.
79 Solar pump control
voltage. The voltage at which the water motor
79.42 PV cell min
PID enabled
(page 226) and
(D4B1 PV max
79.41 Start DC
79.41 Start DC voltage
voltage.
MPPT speed limit
40 Process PID set 1
volt) can be defined
voltage.
value should be