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000779AG
5 - Installation
C
onnection and configuration of the ABB B21 meter
(single-phase)
The indications set out below are necessary to connect the meter to the inverter. Always refer
to the specific documentation supplied with the ABB B21.
The energy meter ABB B21
40
is a DIN rail device (2 modules) and must be
installed where the electricity supply is three-phase.
To avoid risks of electrical shock, all wiring operations must be carried out with the AC disconnect
switch (or the supply meter) upstream of the meter disconnected.
• Disconnect the AC disconnect switch upstream of the meter.
• Strip the insulation of the cable for the length which is indicated on the
meter (13mm).
• Connect the cables of the three-phase line in accordance with the lay-
out printed on the meter (L and N) to the AC connection terminal block
56
and tighten the screws (tightening torque 3.0 Nm).
3
COMM
5
COMM.
to Accessory
board
N
N
L
L
TO GRID
LOADS and INVERTER SIDE