Siemens 125-5033 Benutzerhandbuch

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Product Overview 
Siemens Building Technologies, Inc. 
 
3 
Hardware Inputs 
Analog 
•  Differential pressure transmitter 
Digital 
•  Operator Display Panel (ODP) 
•  ATTN.UNATTN (through DI1) 
•  OCC.UNOCC (through DI1) 
Hardware Outputs 
Analog 
•  AO-E/AO-P module (Floating Control) 
•  Operator Display Panel (ODP) 
•  AO2 (Flow Signal, 1 to 10 Vdc) 
Digital 
•  FLN communications trunk 
•  DO3 (24 Vac, Alarm/Hi.Low Output) 
Power Wiring 
The controller is powered by 24 Vac. Power wiring connects to the three screw terminals on 
the controller labeled “C” (Common), “H” (Hot) and “E” (Ground) on the terminal block labeled 
“TB1”. Earth ground connection is required (Figure 2). 
Communication Wiring 
The controller connects to the field panel by means of a Field Level Network (FLN) trunk. 
Communication wiring connects to the three screw terminals on the controller labeled “+” 
(positive), “-“ (negative), and “S” (Shield) (Figure 3).