Frank Lewon's posts

RE MPPT500 RFI and update firmware.

Additional RFI suppression has been added to the MPPT500 and MPPT500HV controls.

New firmware is available for the MPPT500/500HV. Contact BZ Products for free upgrade.

Frank Lewon BZ Products  bzp @ bzproducts.net

MPPT50HV specifications.

Thank you for pointing out the difference between the MPPT500 and MPPT500HV. Both controls operate over the entrie PV input range of 12 to 48 volts nominal.

The power converter components of the MPPT500 have been selected to provide optimum operation efficiency and current boost with a 48 volt nominal PV input. Power conversion efficiency is up to 2% higher in the 500HV as compared to the 500.

In the 500 watt power range most PV arrays will be 12 or 24 volts. So the MPPT500 has been optimized to the lower PV input voltage.

Some installations require very long wire run to the solar array. In these installations the MPPT500HV would be a better choice.

Frank Lewon BZ Products.

MPPT500 PV tracking error.

The unit described has a internal noise problem that was not detected during production. A production change has been implemented to correct this problem. The microprocessor is seeing noisy data and not tracking properly. Return the 500 to BZ Products for hardware and software upgrades.

MPPT500 VS MPPT500HV.

While both versions of the MPPT500 will accept a PV input voltage of 100 volts maximum. The efficiency of the MPPT500HV has been optimized for 48 volt PV input.

We like to hear back from our customers in order to continue improving our products. 

Frank Lewon BZ Products. INC.