3-5 Display Configuration
3-5 Display Configuration
The ETR-3000 can be configured to display the process value by selecting PV for DISP. To display the set point value
select SP1 for DISP.
PV
Examples:
If LOCK is set with NONE, OUT2 is set with DEHI, DISP is set with PV, set SEL1=SHIF, SEL2=ADDR. SEL3=PB,
SEL4~SEL8=NONE, then the display scrolling for ETR-3000 becomes:
If LOCK is set with NONE, OUT1 is set with REVR,nonzero value is set
for PB and TI, OUT2 is set with COOL, DISP is set with SP1, set SEL1=INPT, SEL2=PB, SEL3=TI, SEL4~SEL8=
NONE, then the display scrolling for ETR-3000 becomes:
SP1
3 - 6 Ramp
3 - 6 Ramp
The ramping function is performed during power up as well as any time the set point is changed. Choose MINR (units
per minute) or HRR (units per hour) for RAMP, the unit will perform the ramping function. The ramp rate is
programmed by adjusting RR. The ramping function is disabled as soon as failure mode, manual control mode, the
auto-tuning mode or the calibration mode is entered.
The ramping function is performed during power up as well as any time the set point is changed. Choose MINR (units
per minute) or HRR (units per hour) for RAMP, the unit will perform the ramping function. The ramp rate is
programmed by adjusting RR. The ramping function is disabled as soon as failure mode, manual control mode, the
auto-tuning mode or the calibration mode is entered.
Example without Dwell Timer
Example without Dwell Timer
Select MINR for RAMP, selects °C for UNIT, selects 1-DP for DP, Set RR= 10.0. SV is set to 200 °C initially, and
changed to 100 °C after 30 minutes since power up. The starting temperature is 30 °C. After power up the process is
running like the curve shown below:
Select MINR for RAMP, selects °C for UNIT, selects 1-DP for DP, Set RR= 10.0. SV is set to 200 °C initially, and
changed to 100 °C after 30 minutes since power up. The starting temperature is 30 °C. After power up the process is
running like the curve shown below:
23
200
C
200
C
100
C
100
C
30
C
30
C
17
30
40
Time
(minutes)
Time
(minutes)
PV
0
Note: When the ramp function is used, the display will show the current ramping value. However it will revert to show
the set point value as soon as the up or down key is touched for adjustment. The ramping value is initiated to process
value either as power up or RR and /or set point are changed. Setting RR to zero disables the ramp function.
Note: When the ramp function is used, the display will show the current ramping value. However it will revert to show
the set point value as soon as the up or down key is touched for adjustment. The ramping value is initiated to process
value either as power up or RR and /or set point are changed. Setting RR to zero disables the ramp function.
Figure 3.5 RAMP Function
Figure 3.5 RAMP Function
