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Positioning Presence Detectors
For information on installing and positioning detectors, please
refer to the installation instructions provided with the particular
detector.
Connecting Switches
The D CDH8U5 is equipped with SELV switch inputs which will
typically be two way, centre off, momentary rockers,(e.g. the PEHA
D 254T range). The logical function of a switch can be configured
from a wide range of options and its action can be associated with
any combination of channels. The switch connection consists of
a 3-pole pluggable terminal block comprising a common and two
returns from normally open contacts. Four plugs (plus one HD) are
provided with each D CDH8U5.
Note that if the SELV status of any one of
the switches is compromised by reason of
inadequate insulation or segregation of the
cabling, then the SELV status of all other
switches AND OF THE DETECTORS will also
B Com A
be compromised.
The recommended cable for use with the SELV switches is 3-core
300/500v 0.75mm² cable to CMA Reference 3183Y or for LS0H,
to CMA Reference 3183B. The maximum allowable cable length
between the switch mechanism and the D CDH8U5 terminal block
is 100m. Three separate single wires should not be used.
Connecting Switches with High Density Connector
The D CDH8U5 also has provision to connect 5 additional SELV
switch inputs in order to meet the requirement of additional inputs.
Unlike the 3-pole connector, this provides two terminals A&B for
each of the 5 inputs.
Note: For the switches on the High Density Connector (SW 8-12)
use any of the 'C' common connectors from switches 1-5.
PEHA Lichtsteuerung – PEHA Elektro GmbH & Co. KG a Honeywell Company · Gartenstraße 49 · 58511 Lüdenscheid · Deutschland · www.peha.de · peha@peha.de
Wiring for HD SELV Input
SELV SWITCH INPUTS
B A B A
B A
B A B A
B COM A
B COM A
12
11
10
9
8
5
4
For HD switches 8-12, use any of the 'COM' connections from
switch inputs 1-5.
Connecting SELV Output, Aux 1
MAINS INPUT
SWITCHED LIVE OUTPUTS
N
L
1
2
3
4
1
2
3
4
5
6
7
8
DIMMING CHANNELS
SELV SWITCH INPUTS
B A B A
B A
B A B A
B COM A
B COM A
B COM A
B COM A
12
11
10
9
8
5
4
3
2
External BMS
The D CDH8U5 has a single SELV change-over output for signal-
ling purposes only. This can be used to signal an external system
e.g. BMS.
Note: The external voltage connected to Aux 1 must never exceed
24V AC/DC. The SELV Output must be used only for signalling
purposes. Maximum current shall not exceed 1A.
DETECTOR PORTS
5
4
3
2
B COM A
B COM A
B COM A
3
2
1
N/C COM N/O
AUX 1
VOLT FREE CHANNELS
5
6
7
7
8
LIVE
ML
1
1
2
2
MLS
DETECTOR PORTS
B COM A
5
4
3
2
1
1
N/C COM N/O
AUX 1
Signal In
24V AC/DC
W5054B_DE_1206
Seite 10/13
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