Connection Diagram; Auxiliary Load Control Switch Relay Output - Landis+Gyr E470 Series User Manual

Physical description
4.7.1

Connection diagram

4.7.2

Auxiliary load control switch relay output

D000058620 en a – E470 Series 3 SMETS2 100 mm – ZCX310 – User Manual and Functional Description
Issue 1.2
The following figure shows the connection diagram of the E470 meter.
Figure 8 Connection diagram
The connection diagram is provided on the inside of the terminal cover.
The E470 meter has a single auxiliary load control switch (ALCS) relay
output (terminals S1 and S2), for control of ancillary circuits such as off-
peak heating.
The ALCS relay output is located at the right side of the meter directly
above the main connection terminals (see Figure 6).
This output is a single pole voltage free non-latching relay rated at 230 V
2 A at unity and 0.5 pf.
The relay can be controlled by the following sources:

ALCS calendar (time of use, using scripts in the independently
controlled scheduler)

GBCS messages (sent from outside the meter via the DCC)
These options are shown in Figure 9.
There are no specific priorities on the sources concerning the control;
i.e. any new switch command, independent of its source, overrides the
previous one.
dlms communication
GBCS message
Output control unit
Figure 9 Output control unit
ALCS calendar
ALCS calendar table
Open/Close
230 VAC / 2 A
29/143
© Landis+Gyr