Rittal 7338.321, Монтаж, установка и эксплуатация

Страница: 24 / 86

3.3.2 Door contact switch
Door contact switches for the doors of the
cabinet to be protected can be connected
to connections "5" and "13" (Fig. 7 ). This
serves to monitor the cabinet door posi-
tions of the object to be protected. When a
door to the switch cabinet to be protected is
opened, the extinguishing of the system is
blocked and the message „Blocking by
door cont.” appears in the display.
The installation of door contact switches is described in
Ä
Chapter 5.3.3 „Door con-
tact / blocking” on page 40 .
3.3.3 Interfaces to the Monitoring System CMC III / CMC
‑
TC
Fig. 8: CMC connections
The active extinguishing system DET-AC III Master has a CAN bus CMC III interface
(Fig. 8 /16) for connecting to the CMC III monitoring system. All states and mes-
sages that are listed in the table shown below can be queried through it.
Binary alarm states Binary failure states Messages
External release Failure manual call point Mains failure
Fire Blocking by door cont. Failure ignition cap.
Manual release Failure door contact
Pre-alarm Failure power supply unit (PSU)
Failure battery
Failure air flow (pressure too high)
Failure air flow (pressure too low)
Failure detector 1
Failure detector 2
Failure communication
Failure extinguishing output
Fig. 7: 3.3.3 Connections door contact
switch
Structure, function and connections
Operating Instructions / DET-AC III Slave / 916007 / 05-2016 / en_US 24