39
4. Operating procedure
About the wait function
When the wait function is set to [
ON
],
the mode will remain “waiting” without counting down the time
until temperature in the furnace (indication) will be within the wait deviation range between -3
℃
and
+6
℃
to the set temperature. When you set the set time to 0 minute, the unit will operate from the “Start
temperature” to the “Set temperature” at full power.
When you have set time longer than the specified performance, the unit will control heating and
cooling so that the set temperature will be attained (within the wait width deviation range) at the set
time.
Even when the indicated temperature drops while temperature is stable due to opening of the door, the
mode will remain “waiting” without counting down the time if the wait width upper or lower limit is
exceeded.
When you set the wait function to [
OFF
], the unit will proceed to the next step at the set time
irrespective whether the temperature is within the wait width deviation between the set temperature
and the indicated temperature.
When the set time is set to a short time exceeding the heating and cooling capacity, the unit will
proceed to the next step before the set temperature is attained and you need to make sure that the
wait function is set at [
ON
] when you are going to operate at the full power.
※
Example of estimated heating/cool
ing at indicated setting of wait [All
ON
] and [ALL
OFF
] in the program in the table below.
Step
1
2
3
4
5
6
7
8
9
10
Set temp(
℃
)
1000
1000
500
500
1000
1000
500
500
750
750
Set time
0
min
30
min
0
min
30
min
0
min
5
min
0
min
5
min
2hr
30
min
Heating and cooling time of steps (1), (3), (5) and (7) are at the full power setting.
Heating time of the step (9) has been set longer than the specification.
【
Example of estimated process at “Full ON” setting for the wait function
】
【
Example of estimated process at “Full OFF” setting for the wait function
】
1000
750
500
1000
750
500
Temperature (
℃
)
Wait width
deviation lower
limit
Wait width deviation
upper limit
Time
Step
Temperature (
℃
)
Time
Step
Summary of Contents for FP102
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