Connection to the AC side terminal board
To prevent electrocution hazards, all the connection operations must be carried out with the
disconnect switch downstream of the inverter (grid side) open and locked.
For all inverter models, connection is carried out using the AC output termi-
nal block
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passing the cables internally through the AC cable gland
19
.
Remove the protective lm located on the hole to be used for the AC
cables
19
, insert the M32 cable gland in the hole and secure it using the
M32 lock nut (to ensure environmental protection IP65 it is necessary
to x the cable gland to the inverter chassis with a minimum tightening
torque of 8.0 Nm).
Strip 12-13 mm of sheathing from the AC grid connection cables then
plug the AC line cable into the inverter, passing it through the previous-
ly installed cable gland; the maximum diameter accepted by the cable
gland is from 13 to 21 mm².
The procedure for opening the contacts of AC output terminal block
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and tightening cables is as follows:
1) Insert the WAGO screwdriver (supplied) in slot with the screwdriver
facing downwards; lightly press the screwdriver from the top to the bot-
tom; insert the screwdriver until the clamp opens.
2) Insert the cable in the clamp.
3) Remove the WAGO screwdriver.
Connect on the terminal block
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the protective earth (yellow-green) ca-
ble to the contact labelled with the symbol, the neutral cable (normally
blue) to the terminal labelled with the letter N and the phase cable to the
terminal labelled with the letter L; each terminal of the terminal block ac-
cepts a cable with cross-section which can vary from 0.2 up to 10 mm².
Pay special attention and ensure you do not reverse the phase with
the neutral!
Once the connection to the terminal board has been made, tighten the
cable gland rmly (tightening torque 5.0Nm) and check the seal.
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