FRIEDHELM LOH Rittal CMC III Installations- Und Kurz-Bedienungsanleitung Seite 9

5.2 Installation
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Please observe the following instructions during installation:
Note:
The CMC III Processing Unit or Processing Unit Compact must contain the software ver-
sion ≥ V 3.15.80. This means that the door control module (DK 7030.501) automatically
receives the necessary software update via the PU. This is the only way to guarantee the
function of the unit.
Ensure the correct allocation of all components to door 1 (connections 6, 7 and 11) and
door 2 (connections 5, 8 and 12).
An external signal at the digital signal input will always impact both door 1 and door 2.
Via the CMC III PU website, it is possible to configure which door is opened by entering
an admissible access authorisation on a connected CMC III reader unit (transponder card
or numerical code). When using the VX IT door with ADO, just the integrated vent flaps
are activated, the door itself is not activated.
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First, depending on the application, please ensure that all components (magnet door kit, VX IT doors
with ADO / vent flaps, door switch or door comfort handle, CMC III reader unit and door extension)
have been correctly mechanically fitted on the IT rack as per the corresponding assembly instruc-
tions.

If applicable, using the digital signal input (fig. 3, item 4) connect the signal output of a fire alarm sys-
tem or building control system, for example.

If applicable, connect a door switch or door comfort handle with opener function for manual opening
of door 1 (fig. 3, item 6) and door 2 (fig. 3, item 5).
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Depending on the door type, connect the relevant magnet door kit or VX IT door with ADO to door 1
(fig. 3, item 7) and door 2 (fig. 3, item 8).
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If used, connect the external temperature sensor to the door control module connection at the rear
(fig. 3, item 9) and route the measuring sensor to the required measuring point.

If applicable, as an alternative to a door switch or door comfort handle with opener function for ac-
cess control, connect a suitable CMC III reader unit (coded lock or transponder reader) for manual
opening of the doors (fig. 3, item 10).
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For climate control applications with a Liquid Cooling Package, connect the door extension kit for
door 1 (fig. 3, item 11) and door 2 (fig. 3, item 12).
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Connect each of the two power supplies for the door control module to a power pack (DK 7030.060)
(fig. 3, item 13, 14).
If an A+B power supply is operated in the IT enclosure for the servers, one power pack must be con-
nected to supply circuit A and one power pack to supply circuit B.

Use the enclosed 2-wire cable for wiring. These cables must not be shortened.
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Join the two power packs together using the unused connections from the power supply (fig. 4).
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Once again, use the enclosed 2-wire cable for wiring. This cable must likewise not be shortened.
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Connect the door control module to the CMC III PU or to the neighbouring elements in the CAN bus
using a CAN bus connection cable (fig. 3, items 15, 16).
Status change display:
– The two green and the two red CAN bus LEDs on the CAN bus connection flash.
– The multi-LED of the Processing Unit flashes continually in the sequence green – orange – red.
– The multi-LED of the door control module flashes blue continuously.

Press the "C" key on the CMC III PU (an initial audio signal will sound) and keep it pressed for approx.
3 seconds until a second audio signal is heard.
Rittal CMC III door control module
Installation and operation
EN
9