Dwell Timer - ero electronic ELK Guía Del Usario

4.4.1.

Dwell Timer

A dwell timer ('TI.CFG' = 'DwEll') is used to
control a process at a fixed temperature for a defined
period.
At power up the instrument will start in the same
mode (Auto or OFF) or with the same setpoint (SP1
or SP2) it have prior to the power shutdown.
In reset the controller behaviour depends on the
configuration of the 'END.T' parameter.
In run the instrument will select the SP1 as
operative set point and the control will start.
Timing starts when the temperature is within the
threshold 'THRES' and the setpoint. If the
SP1

Temperature
Scrolling message
RESET Digital Input
RUN
END
42
Counting
down
OFF TIMER RUNNING
threshold is set to OFF the timing starts
immediately. If setpoint ramping is enabled, then the
ramp completes before the timer starts.
In the END state the behaviour is determined by the
parameter 'END.T' (End type):
OFF: The heating and cooling is turned OFF (resets
to Off)
Dwell: Controls at setpoint1 (resets to Setpoint 1)
SP2 Controls at setpoint 2 (resets to Setpoint 1)
Note: The dwell period can be reduced or increased
while the timer is running.
End State e n d. t =
OFF
THRES = + n
SP2
TIMER END
OFF
OFF
Part number HA028438. Issue 3.0.
SP2 dwel
Time
Oct-05