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0
1
1
0
1
0
0
1
Start condition 1
Command B
Start condition 2
Command A
locking time
locking time
Function diagram
8.3.6
Load ( )
The load signal ( ) 0...100 % allows for controlling a modulating aggregate. The
signal is sent to the terminals Y(x) via a modulating output block.
Example
C D
C
D
X
N.Y1
N.Y2
A
B
Rotary
step switch 1
Modul. output
Modul. output
8.3.7
Precommand output ( )
Use a precommand output to first start an aggregate (e.g. a pump must be
switched on before the refrigeration machine can switch on).
This command can be simultaneous
or
delayed by "Precommand runup time"
using the precommand. After switching off the command, the precommand also
switches off after an adjustable "Precommand rundown time" (see 2
nd
example in
Main menu > Commissioning > Settings > ....
or
Setting values
Main menu > Settings > Aggregates > Rotary step switch > Rotary step switch 1...2 >
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
Use the precommand output together with command .
Notes
"Precommand runup time" and rundown time apply to all aggregates (A…D).
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Switching and monitoring device RMS705B
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Building Technologies
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01.04.2010