Rittal CMC III Notice D'installation Et D'utilisation page 9

3.4 Operating conditions
The universal sensor may only be operated under the following operating conditions:
Operating condition
Temperature operational range:
Humidity operational range:
Degree of protection:
4 Assembly
4.1 Assembly instructions
The assembly of the universal sensor is made as shown in fig. 2, fig. 3, fig. 4 or fig. 5.
5 Installation and operation
5.1 Operating and display elements
The operating and display elements are shown in fig. 6.
Key for fig. 6
1 Multi-LED for the status display
2 CAN bus connection, 24 V
3 CAN bus connection, 24 V
4 Universal interface
5.2 Installation

Connect the interface to an external unit.

Observe the pin assignment of the universal interface (fig. 6, item 4):
Pin Signal
Pin 1 +24 V
Pin 2 GND
Note:
Several units can also be connected to the universal interface provided the pin assign-
ment permits this.

Connect the universal sensor with a CAN bus connection cable to the CMC III PU or to the neigh-
bouring elements on the CAN bus (fig. 6, item 3, 4).
Display of the status change:
– 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 green – orange – red sequence.
– The multi-LED of the universal sensor flashes blue continuously.

Press the "C" key on the CMC III PU (a first audio signal is issued) and keep it pressed for approx.
3 seconds until a second audio signal is issued.
Display of the status change on the CAN bus LEDs:
– Green LEDs light continuously: CAN bus status "OK".
– Red LEDs light continuously: CAN bus status faulty.
Display of the status change on the multi-LED of the Processing Unit:
– Continuous green light: All units attached to the CAN bus have the "OK" status.
Rittal CMC III Universal Sensor
Product description, Assembly, Installation and operation
CMC III Universal Sensor
0 °C to +55 °C
5% to 95% relative humidity, non-condensing
IP 30 in accordance with IEC 60 529
Pin Signal
Pin 3 4-20 mA input
Pin 4 4-20 mA GND
Pin Signal
Pin 5 Digital input 1
Pin 6 Digital input 2
EN
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