Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Aggregates 03.10.2011

p
Y...
ON
Y
Q... Q...
Digital
X...
AO
DO
DI
Q
OFF
t
1
xxxx
QQQ
2
1
12
V
12
dx d

p
a
Y
123
4
y1 y2
x
QQ Q
QY
y3
Start Stop
Duct pressure (DP stat)
Vol flow (DP dyn)
Vol flow (linear 0..10 V)
Speed
Step
switch 1
Linear
Binary
Release
Connect 1+2
Supply
3150S27en
Plant
fan
checkback
load
electric
air heater
battery
Overrun
10.7.5 Release external
One input can be configured as release for the step switch.
Main menu > Commissioning > Extra configuration> Aggregates > Step switch > Step
switch 4...5 >
Operating line Adjustable values / remarks
Release external ---, N.X1, N.X2, ... (digital and analog inputs)
An analog signal can be used as release signal.
The threshold values can be set via the setting values "Release switching value
on" and "Release switching value off", if the corresponding step switch is to be
released.
Main menu > Commissioning > Settings > … or
Main menu > Settings > Aggregates > Step switch > Step switch 4…5 >
Operating line Range Factory setting
Release switching value on Depending on selected type Depending on type
Release switching value off Depending on selected type Depending on type
A delay time can be set to account for measurement variations during operation.
For example, the following function can be implemented: Release of an electric
heating coil via a flow signal.
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Step switch > Step switch 4…5 >
Operating line Range Factory setting
Switch-off delay release 00.00...10.00 m:s 00.05 m:s
Application example
Configuration
Setting values