KEM
Technical Support:
5
Figure 1.
KEM. Element scheme
1.2
INSTALLATION
Figure 1 shows the element scheme of KEM:
KEM connects to the KNX bus via the built-in terminals (8). An external DC power supply
is not needed.
Once the device is provided with power from the KNX bus, both the individual address
and the associated application program can be downloaded.
To carry out
electricity consumption
measurements, it is necessary to connect the
Zennio current transformers to the KEM inputs intended for that use (2). A different
transformer will be required per electrical line being monitored. Thus, if three electrical
lines are going to be monitored, one transformer will need to be connected to the slots
CT1 +/-
(referred to as “Phase 1”), another one to the slots CT12 +/- (“Phase 2”), and a
third one to the slots CT3 +/-
(“Phase 3”).
For
water consumption
measurements, the output of each flow meter will be connected
to the flow meter inputs of KEM (7). The flow meter will be supplied from the 5V power
output of KEM (5). Note that this output will only be live if at least one of the channels for
water measurement is enabled in the parameterisation (see section 2.3).
3
2
5
4
6
1
7
8
1. Analog/digital inputs
2. Current transformer connections
3. Programming button
4. Programming LED
5. Flow sensor power output
6. Fit clamp
7. Flow meter sensor inputs
8. KNX connector