Siemens Synco 700 RMZ785 - Page 116

Main menu > Commissioning > Settings > .... or
Setting values
Main menu > Settings > Aggregates > Motor > Motor 1...6 >
Operating line Range Factory setting
Precommand runup time 00.00…59.59 m.s 00.00 m.s
Precommand rundown time 00.00…59.59 m.s 00.00 m.s
Function diagram
TiRup TiCst
TiOnMin2PcmdRnup
TiOnMin1 TiOnMin1
Speed 2
Speed 1
Off
Off
Off
On
On
Precommand
TiRup = Runup time
TiCst = Rundown time
DlyOn = Switch-on delay
DlyOff = Switch-off delay
TiOnMin1 = On time minimum, Step 1
TiOnMin2 = On time minimum, Step 2
PcmdRnup = Precommand runup time
PcmdRndw = Precommand rundown time
Key
1-speed motor control
s a cold-water side pump with safety shutoff valve. The valve
controlled via precommand as per the above time diagram.
Example
is
Function diagram
V
V
DO
DI
N.Q1 N.Q2
C
Logic 1
Cw Chilled water.
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Siemens Switching and monitoring device RMS705B CE1P3124en
Building Technologies Aggregates 01.04.2010