SMC Networks HRS Series - Page 91

DOC1001322
Chapter 5 Display and Setting of Various Functions
HRS Series 5.4 Description of the Screen
5-29
■ About alarm monitoring timing
If [ ] is selected as (3) “Monitor Timing” alarm monitoring condition, [ ] and
[ ] can be additionally selected. [ ] is a function to start alarm monitoring when the
circulating fluid temperature rises/drops within the alarm setting temperature range in the
time period specified by (4) “Start Time” (no monitoring time). Specific alarm monitoring
timing is shown in “Figure 5-5 Alarm monitoring timing”.
[Example of setting]
• Circulating fluid SP: 20ºC
• (1) “High Temp.” Circulating fluid temperature rise (AL10): 22ºC
• (2) “Low Temp.” Circulating fluid temperature drop (AL11): 18ºC
• (3) “Monitor Timing” Alarm monitoring conditions: [ ] and [ ]
• (4) “Start Time” No monitoring time: 1200 sec / “Out Time” : 600 sec
Time
Chiller
Operation
Stop
Circulating fluid set
temperature 20ºC
AL10 alarm monitoring
ON
OFF
(2)
Alarm AL10
Generate
No alarm
AL10 set
temperature 22°C
400sec
500sec
(3)
(4)
600sec
(5)
Circulating fluid
temperature
(1)
AL11 alarm monitoring
ON
OFF
1200sec
Alarm AL11
Generate
No alarm
AL11 set
temperature 18°C
Fig. 5-5 Alarm monitoring timing