Tempco TEC-2500, Инструкция по эксплуатации

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Error Code
If alarm 1 is configured as dwell timer, A1SP, A1DV, A1HY and A1MD are hidden.
The case is the same for alarm 2.
Example:
Set A1FN=TIMR or A2FN=TIMR, but not both.
Adjust TIME in minutes
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 AC load.
3–8 Dwell Timer
Alarm 1 or alarm 2 can be configured as dwell timer by selecting TIMR for A1FN or A2FN,
but not both, otherwise Er07 will appear. As the dwell timer is configured, the parameter
TIME is used for dwell time adjustment. The dwell time is measured in minutes ranging
from 0 to 6553.5 minutes. Once 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 operation is shown as following diagram.
CPB Programming:
The cooling proportional band is measured by % of PB with a range of 1~255. Initially
set 100% for CPB and examine the cooling effect. If the cooling action should be enhanced then decrease
CPB, if the cooling action is too strong then increase CPB. The value of CPB is related to PB and its value
remains unchanged throughout the self-tuning and auto-tuning procedures.
Adjustment of CPB is related to the cooling media used. If air is used as the cooling medium, set CPB at
100(%). If oil is used as the cooling medium, set CPB at 125(%). If water is used as the cooling medium, set
CPB at 250(%).
DB Programming:
Adjustment of DB is dependent on the system requirements. If a higher positive value of
DB (greater dead band) is used, unwanted cooling action can be avoided, but an excessive overshoot over
the set point will occur. If a lower negative value of DB (greater overlap) is used, an excessive overshoot over
the set point can be minimized, but an unwanted cooling action will occur. It is adjustable in the range -36.0%
to 36.0% of PB1 (or PB2 if PB2 is selected). A negative DB value shows an overlap area over which both
outputs are active. A positive DB value shows a dead band area over which neither output is active.