Operators Handbook DCU3 – System
6., Main function „Control Loops“
BAEDCU3 - Rev. 4.6 - 0504
6 - 35
6.22 Timers
The timers implemented in the DCU3 - system can switch off and on discontinuous actuators and
pumps, for instance, via digital outputs. For this the timers can be operated in these operating modes:
In
cycle mode
the output is switched on and off periodically. Both „on“-time and „total cycle
time“ will be predefined for this.
In
profile mode
the output is switched on and off at times, which are entered into a table via
the operator terminal. Up to 16 different switching times can be processed.
The timers can be started and stopped at any time. For running timers the display shows the passed
time („ELAPT“).
6.22.1 Operator
Display
Tag
Entry
Displayed value or function, required input
MODE
Display of / Enter the timer status
stop
−
timer inactive
start
−
timer not started
profile
−
timer runs in “profile” mode
cycle
−
timer runs in “cycle” mode
elaps
−
profile finished, the digital output has the latest setting
ELAPT
h:m
Display of elapsed time since start of timer];
graphical display of the elapsed time in the profile display
CYCLE
m:s
Input of cycle time in [minutes:seconds]
PULSE
m:s
Input of pulse time in [minutes:seconds]
TIME
h:m
Input of time for the switch point of the timer profile
SETPOINT
on / off Input of switching condition for switch point timer profile
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