PROGRAMMING
GUIDE
SOLARDRIVE
PLUS
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2.6.9.
Solardrive
– Configuration Parameters Menu
NOTE
This section is applicable to software versions starting from 4.050.
2.6.9.1. Overview
This menu includes the configuration parameters of the equipment, namely:
The configuration of the digital inputs controlling external information;
The minimum speed of the pump motor;
The setting of the current decrease based on the heatsink temperature.
Digital Input Configuration
Some digital inputs (MDIs) are allocated to specific functions of the Solardrive Plus Box/Cabinet. In particular:
MDI
FUNCTION
DESCRIPTION
MDI1
Motor start command
Full tank sensor
MDI4 (*)
PV Field isolation loss
Signal from isolation control board
Signal for PV field earthing fuse auxiliary contact
MDI5 (*)
DC/AC switch auxiliary
contact
Determines the drive operation in PV mode (power supply
from PV field) or AC power supply (auxiliary AC power
supply)
MDI6 (*)
SPD tripped
Signal from SPD tripped
(*) Optional functions
Table 12: Digital inputs
NOTE
The Solardrive Plus Box/Cabinet is standard supplied with the parameters above already set to
the value fitting the application required.
Minimum Pump Speed
Centrifugal pumps typically feature minimum speed ratings affecting adequate flow rate. If flow rate is
inadequate, the pumps might get damaged. If power made available from the PV field is not adequate to
guarantee this minimum speed, the drive stops the motor until power is adequate to run the motor. How the
connected motor is restarted is described in section 2.6.10.
Current Reduction based on Heatsink Temperature
If the heatsink temperature exceeds a safety parameter, the output current is limited to a preset value so that
the pump may operate even when high temperatures are achieved without stopping the drive due to
overtemperature (alarm
A094
).
Current vs temperature is described in the figure below:
