52 Installation checklist
Checklist
Do the steps in section Performing electrical work on page 12 before you start the work.
Go through the checklist together with another person.
Make sure that …
Mechanical installation (refer to chapter Mechanical installation)
There is sufficient free space in front of the unit.
The ambient operating conditions are allowed.
The unit is properly fastened to the floor.
The cooling air is clean and it is able to flow freely in through the inlet air ducts and grilles and out of
the exhaust air ducts and grilles.
Electrical installation (refer to chapter Electrical installation)
The inverter (including cables) is grounded properly and the earthing electrodes are constructed
properly.
The AC line voltage matches the nominal output voltage of the inverter.
The AC transformer is suitable for use with the inverter (refer to the PVS800-57B central inverters
hardware manual (3AXD50000048300 [EN])).
The insulation of the assembly is sufficient (refer to Insulation test on page 39).
The AC power system is an IT (ungrounded) system.
The AC power connections at L1, L2 and L3 and their tightening torques are correct.
The DC power cable connections at DC+ and DC– and their tightening torques are correct.
The AC and DC power cable lead throughs are sealed properly.
The auxiliary and control cables are routed away from the power cables (refer to Routing the cables
on page 40).
The auxiliary power supply cable connections from the inverter at X1 and X4 and their tightening
torques are correct.
The external control connections to the inverter are correct (including the fieldbus and connections at
X2).
The cable connections at the junction box and their tightening torques are correct.
There are no tools, foreign objects or dust inside the modules or the cabinet.
All of the shrouds and covers are in place.
All of the doors and door filters are in place.
All of the cooling fan power plugs are connected.
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