Example profile, Circle file number: 1 2 3 4 master step chart – Watlow Series SD PID Profiling Controller User Manual
Page 56
Wa t l o w S e r i e s S D
•
5 4
•
C h a p t e r 1 0 P r o f i l i n g
Example profile
Gwen, of Smith Manufacturing needs to perform a burn-in test of their product in an environmental chamber. The
test should take the product through the following sequence:
1. Heat from room temperature to a temperature of 150°F over a 1-hour period.
2. Hold the temperature at 150°F for 2 hours.
3. Cool the temperature to 32°F as quickly as possible.
4. Once the temperature reaches 32°F, hold that temperature for 2 hours.
5. Stop controlling the temperature and allow it to return to room temperature naturally.
Use the master step chart to map out the profile.
Circle File Number: 1 2 3 4
Master Step Chart
Step 1
___ Stpt (Ptyp=ti)
Tg.SP
1 5 0
Hour
1
Min.
0
Sec.
0
Ent1: On Off
Ent2: On Off
Ent3: On Off
___ Stpt (Ptyp=rate)
Tg.SP
Rate
Ent1: On Off
Ent2: On Off
Ent3: On Off
___ Soak
Hour
Min.
Sec.
Ent1: On Off
Ent2: On Off
Ent3: On Off
WF.P: Yes No
W.Pr
___ JL
JF
JS
JC
___ LFil
LF
___ End
End: Off Hold
Step 2
___ Stpt (Ptyp=ti)
Tg.SP
Hour
Min
Sec.
Ent1: On Off.
Ent2: On Off
Ent3: On Off
___ Stpt (Ptyp=rate)
Tg.SP
Rate
Ent1: On Off
Ent2: On Off
Ent3: On Off
___ Soak
Hour
2
Min.
0
Sec.
0
Ent1: On Off
Ent2: On Off
Ent3: On Off
WF.P: Yes No
W.Pr
___ JL
JF
JS
JC
___ LFil
LF
___ End
End: Off Hold
Step 3
___ Stpt (Ptyp=ti)
Tg.SP
3 2
Hour
0
Min.
0
Sec.
0
Ent1: On Off
Ent2: On Off
Ent3: On Off
___ Stpt (Ptyp=rate)
Tg.SP
Rate
Ent1: On Off
Ent2: On Off
Ent3: On Off
___ Soak
Hour
Min.
Sec.
Ent1: On Off
Ent2: On Off
Ent3: On Off
WF.P: Yes No
W.Pr
___ JL
JF
JS
JC
___ LFil
LF
___ End
End: Off Hold
Step 4
___ Stpt (Ptyp=ti)
Tg.SP
Hour
Min
Sec
Ent1: On Off.
Ent2: On Off
Ent3: On Off
___ Stpt (Ptyp=rate)
Tg.SP
Rate
Ent1: On Off
Ent2: On Off
Ent3: On Off
___ Soak
Hour
2
Min.
0
Sec.
0
Ent1: On Off
Ent2: On Off
Ent3: On Off
WF.P: Yes No
W.Pr
3 2
___ JL
JF
JS
JC
___ LFil
LF
___ End
End: Off Hold
Step 5
___ Stpt (Ptyp=ti)
Tg.SP
Hour
Min.
Sec.
Ent1: On Off
Ent2: On Off
Ent3: On Off
___ Stpt (Ptyp=rate)
Tg.SP
Rate
Ent1: On Off
Ent2: On Off
Ent3: On Off
___ Soak
Hour
Min.
Sec.
Ent1: On Off
Ent2: On Off
Ent3: On Off
WF.P: Yes No
W.Pr
___ JL
JF
JS
JC
___ LFil
LF
___ End
End: Off Hold
S t e p 1
[~~~1] [~~~1]
[Stpt]
[~150] [~~~1]
[~~~0] [~~~0]
[File] [Step]
[Styp]
[Tg;SP] [hour]
[Min] [~seC]
S t e p 2
[~~~1] [~~~2]
[Soah]
[~~~2] [~~~0]
[~~~0] [~~no]
[File] [Step]
[Styp]
[hour] [Min]
[~SeC] [WF;P]
S t e p 3
[~~~1] [~~~3]
[Stpt]
[~~32] [~~~0]
[~~~0] [~~~0]
[File] [Step]
[Styp]
[Tg;SP] [hour]
[min] [~SeC]
S t e p 4
[~~~1] [~~~4]
[Soah]
[~~~2] [~~~0]
[~~~0] [~Yes] [~~32]
File] [Step]
[Styp]
[hour] [Min]
[~SeC] [WF;p] [WPr]
S t e p 5
[~~~1] [~~~5]
[~End]
[~Off]
[File] [Step]
[Styp]
[~End]