Startup; Switching On/Off; Switching On; Switching Off - Siemens CKA4820 Betriebsanleitung

Startup

6 Startup
6.1

Switching On/Off

6.1.1

Switching On

6.1.2

Switching Off

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Siemens Building Technologies
Fire Safety & Security Products
Please observe before connecting the power supply:
The housings of all system components must be closed to prevent direct contact with live
parts.
All current sources as well as any extension cables must be sufficiently dimensioned for the power
consumption.
Connect the DC 12 V power supply (SELV) - not included in scope of delivery.
A short signal tone can be heard following switching on. The LCD indicates:
CKA4820 status: LOGOFF
press key switch for LOGIN
The control unit is now ready for use. The LED (Fig. 1: 15) does not light up.
Control unit status: LOGOFF.
Disconnect the DC 12 V power supply (SELV).
01.2005