User manual

CAUTION!
Danger of damaging the devices (e.g. computer) connected to the StecaLink master bus,
StecaLink slave bus or the UART interface. The galvanic isolation normally present at the AUX
IO, StecaLink master/slave bus and UART connections is disabled if the connected peripheral
devices are connected to the "PE" connection of the controller via a common ground/
equipotential bonding cable.
If the entire system is commonly grounded then all StecaLink bus connections, UART connections
and AUX IO connections must be additionally externally galvanically isolated!
è Connect the ground cable to the "PE" terminal.
4.3.5
Connecting the solar module
1. Safely cover the module (ensure that wind cannot blow off the covering!).
2. Connect the module cable with the (open) DC load circuit breaker to the solar module
connection of the controller and the solar module as follows:
n A common DC load circuit breaker (in the common part of the module cable), when 1
solar module is connected in parallel to solar module inputs "M1" and "M2".
n Two separate DC load circuit breakers, when 2 solar modules are each separately
connected to solar module inputs M1 and M2; see Fig. 2.
3. Remove the covering from the solar module.
4.3.6
Install lightning protection
è Install suitable lightning protection.
756.404 | Z01 | 16.06 30