Fig. A1. 1 shows the cabling
between the energy meter and
the Wallbox. Please mind the
required short-circuit between
the pins T and A- of the energy
meter.
In the event that the supply scheme does not include a neutral line
connection and/or the line-to-line voltage is below 260V, please connect
the Carlo Gavazzi EM112 energy meter as shown in Fig. A1.2:
12
CARLO GAVAZZI
EM 340
T
7
A-
9
B+
8
GND
10
CARLO GAVAZZI
EM 112
T
3
A-
5
B+
4
GND
6
Fig. A1.1: Cabling in specified energy meters
Wallbox
D- (RS485B)
D+ (RS485A)
GND
Wallbox
D- (RS485B)
D+ (RS485A)
GND