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Revision History
Version 4.2 (May 2020)
Modified the procedure for disconnecting the DC power and deleted the
introduction in the Safe DC Appendix.
Modified Power Optimizer Guidelines section: Length of home - run cabels
maximum values , Extension cables rules, Power optimizer clearance
Modified RS485 terminology - Master is now Leader and Slave is Follower,
respectively
Version 4.1 (February 2019)
Added appendix 'Determining the Circuit Breaker Size' and paragraph referencing
to it, in the 'Grid Connection Guidelines' section.
In Specifications removed 'Recommended OCPD size per grid' table.
Version 4.0 (July 2018)
This guide describes three phase inverters only
Update of product names
Removal of grounding cable connected to the DIN rail in the DC Safety Unit.
Hardware change - new enclosure, interfaces and communication board
Addition of possibility to use compatible connectors from third-party
manufacturers
Update regarding use of extension cables in power optimizer installation guidelines
Recommendation to mount the power optimizer in a location protected from direct
sunlight
Power optimizer clearance - no clearance is required on the mounting bracket side
Addition of caution - installation in saline environment
Clearance for three phase inverters installed side-by-side, single row of inverters
outdoors: 5 cm / 2"
PVRSS is enabled by default. Enabling/ disabling PVRSS feature can be done from
the inverter LCD menus.
Addition of reference to troubleshooting undetected devices application note
Three Phase System MAN-01-00507-4.2
Revision History
3
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Table of Contents
Troubleshooting
