Dwell Timer - Brainchild BTC-2500 User Manual

3 8 Dwell Timer

3 8 Dwell Timer
Alarm 1 or alarm 2 can be configured as dwell timer by selecting TIMR for Alarm 1 or alarm 2 can be configured as dwell timer by selecting TIMR for
A1FN or A2FN, but not both, otherwise A1FN or A2FN, but not both, otherwise
configured, the parameter TIME is used for dwell time adjustment. configured, the parameter TIME is used for dwell time adjustment.
The dwell time is measured in minute ranging from 0 to 6553.5 minutes. Once The dwell time is measured in minute ranging from 0 to 6553.5 minutes. Once
the process reaches the set point the dwell timer starts to count from zero until the process reaches the set point the dwell timer starts to count from zero until
time out.The timer relay will remain unchanged until time out. The dwell timer time out.The timer relay will remain unchanged until time out. The dwell timer
operation is shown as following diagram. operation is shown as following diagram.
V
S 1
A1 or A2
ON
OFF
If alarm 1 is configured as dwell timer, A1SP , A1DV, A1HY and A1MD are hidden. If alarm 1 is configured as dwell timer, A1SP , A1DV, A1HY and A1MD are hidden.
Same case is for alarm 2. Same case is for alarm 2.
Example : Example :
Set A1FN=TIMR or A2FN=TIMR but not both. Set A1FN=TIMR or A2FN=TIMR but not both.
Adjust TIME in minutes Adjust TIME in minutes
A1MD ( if A1FN=TIMR ) or A2MD ( if A2FN=TIMR ) is ignored in this case. A1MD ( if A1FN=TIMR ) or A2MD ( if A2FN=TIMR ) is ignored in this case.
If alarm 1 is selected for dwell timer, an external 5V DC relay is required to drive If alarm 1 is selected for dwell timer, an external 5V DC relay is required to drive
AC load. AC load.
Er07 Er07 will appear. As the dwell timer is will appear. As the dwell timer is
TIME
Timer starts
Time Time
Time
UM25001C
Error Code Error Code
Figure 3.4 Dwell Timer Function Figure 3.4 Dwell Timer Function
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