Dwyer 32DZ - Manual (Page 19)

June, 2000 Page 19 of 40 949-1318
OFF OFF OFF OFF OFF Reset Offset Value is retained in memory when the
process input is not within the Proportional Band.
Art1 Art1 Art1 Art1 Art1 Approach Rate Time: Select OFF OFF OFF OFF OFF , 0.01 0.01 0.01 0.01 0.01 to 99.99 99.99 99.99 99.99 99.99 minutes. The
function defines the amount of Rate applied when the input
is outside of the Proportional Band. The
Art1 time and the
rtE1 time are independent and have no effect on each other.
To increase damping effect and reduce overshoot set the
approach rate time for a value greater than the natural rise
time of the process (natural rise time = process value time
to set point).
Fi 1 Fi 1 Fi 1 Fi 1 Fi 1 Fuzzy Logic Intensity: Select 0 00 00 to 100 100 100 100 100 %. 0 % is OFF
(disables Fuzzy Logic). The function defines the amount of
impact Fuzzy Logic will have on the output. If
Fi 1 Fi 1 Fi 1 Fi 1 Fi 1 is set
to 0 00 00 , Fbd1 Fbd1 Fbd1 Fbd1 Fbd1 and Frt1 Frt1 Frt1 Frt1 Frt1 below will not appear.
Fbd1 Fbd1 Fbd1 Fbd1 Fbd1 Fuzzy Logic Error Band: Select 0 00 00 to 4000 4000 4000 4000 4000 °F, °C, or counts.
Sets the bandwidth of the Fuzzy Logic. Set Fbd1 Fbd1 Fbd1 Fbd1 Fbd1 equal to
PID proportional band ( Pb1 Pb1 Pb1 Pb1 Pb1 ) for best results. Self Tune,
when used, calculates this value. Will not appear if Fi 1 Fi 1 Fi 1 Fi 1 Fi 1
is 0 00 00 .
Frt1 Frt1 Frt1 Frt1 Frt1 Fuzzy Logic Rate of Change: Select 0.00 0.00 0.00 0.00 0.00 to 99.99 99.99 99.99 99.99 99.99 counts/
second. For best initial setting, find the count/second
change of process value near Set Point 1 with output ON
(100% output). Multiply this value by 3. Set
Frt1 Frt1 Frt1 Frt1 Frt1 to this
calculated value. Self Tune, when used, calculates this
value. Will not appear if
Fi 1 Fi 1 Fi 1 Fi 1 Fi 1 is 0 00 00 .
PEA1 PEA1 PEA1 PEA1 PEA1 The Peak feature stores the highest input the control has
measured for Zone 1 since the last reset or Power On. At
Power On,
PEA1 is reset to the present input value. To
manually reset the value PEA1 PEA1 PEA1 PEA1 PEA1 must be in the lower display.
Press the ENTER key to reset. PEA1 PEA1 PEA1 PEA1 PEA1 will be reset and
display the present input value.
UAL1 UAL1 UAL1 UAL1 UAL1 The Valley feature stores the lowest input the Instrument
has measured for Zone 1 since the last reset or Power On.
At Power On,
UAL1 UAL1 UAL1 UAL1 UAL1 is reset to the present input. To manually
reset the value UAL1 UAL1 UAL1 UAL1 UAL1 must be in the lower display. Press
the ENTER key. UAL1 UAL1 UAL1 UAL1 UAL1 will be reset and display the present
input value.