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When there are multiple inverters in the PV system, connect the external protective ground-
ing terminals of all inverters and the grounding points of the PV module brackets to ensure
equipotential connections to ground cables (according to the onsite conditions).
5.4.2 Connection Procedure
External grounding cable and OT/DT terminal are prepared by customers.
step 1 Prepare the cable and OT/DT terminal.
(1) Heat shrink tubing (2) OT/DT terminal
After being crimped, the OT terminal must wrap the wires completely, and the
wires must contact the OT terminal closely.
When using a heat gun, protect the device from being scorched.
step 2 Remove the screw on the grounding terminal and fasten the cable with a screwdriver.
User Manual 5 Electrical Connection
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