<Toc> <Ind>
5-3
TI 05C01E02-01E
1st Edition : Oct. 31, 2001-00
5.5 Setting Target Sepoint Ramp Rate (Rate-of-
Change)
•
This function is available for
UT150/UT152/UT155.
•
To prevent the target setpoint (SP) from
changing suddenly or to change it at a
constant rate, set the ramp-up rate
(UPR) and ramp-down-rate (DNR) for
SP. Set the temperature for heat up or
heat down per hour or minute for ramp
rates.
•
The ramp-up rate and ramp-down rate
are set using the setup parameters
"DNR"and "UPR".
OFF (no ramp), or Minimum
value to maximum value of
measured input range (scale)
(
°
C
or
°
F
)
DNR
UPR
Parameter Range
0:
°
C
or
°
F
/ hour
1:
°
C
or
°
F
/ minute
TMU
Time
Time
PV
SP
Temperature
Temperature
Temperature
Time
SP(SP1)
SP(SP2)
(1) When SP is changed
Old SP
Specified
ramp rate
New SP
SP change
(3) When power is turned on (or power has recovered)
Specified
ramp rate
(2) When SP No. is switched
Power-on or
MAN to AUTO switching
Specified
ramp rate
SP1/SP2 switching
70
°
C
/min
UPR=140/2=70 (
°
C
/min)
Heat up for 2 minutes
SP2
SP1
SP2=640
°
C
SP1=500
°
C
(by external contact input)
SP switching
Temperature
difference of 140
°
C
•
Example: Switching from SP1 to SP2
•
When switching from SP1 to SP2, SP
changes suddenly without setting a ramp
rate.
This function is used for changing SP at a
constant rate.
Ramp-up rate
Ramp-down rate
SP2
SP1
Содержание UT130
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