Yamato Scientific BH500 Thermo-Elite - Manual (Page 27)

24
Behavior after Power Restoration
in case of auto return
In case of power failure during operation, the controller resumes the following operations after
the power restoration.
1. In case of power failure during the program operation
The controller automatically resumes the program operation where it left at the power shutdown.
In case that the temperature inside the chamber is outside the specified temperature range based
on the setpoint temperature, the controller goes to the FORECED WAIT STATE until the
temperature inside the chamber comes back to the specified temperature range. When you select
the display of the remaining time by pushing the Display key in this condition, the sub display
shows
.
The timer built-in the controller does not count as running time for a period of power failure.
2. In case of power failure during the Auto-Stop operation
The controller automatically resumes the Auto-Stop operation where it left at the power shutdown.
In case that the temperature inside the chamber is outside the specified temperature range based
on the setpoint temperature after the power restoration, the controller goes to the FORECED WAIT
STATE until the temperature inside the chamber comes back to the specified temperature range.
When you select the display of the remaining time by pushing the Display key in this condition, the
sub display shows
. (Forced Wait)
In case that the operation stop time is set in a period of time, the timer built in the controller does
not count as running time for a period of power failure. On the contrary, in case that the
operation stop time is set in hours, the timer built in the controller counts as running time for a
period of power failure.
When the operation stop time reaches during power failure, the controller stops running just after
the power restoration.
3. In case of power failure while the controller is in standby condition
In case that the operation start time is set in a period of time, the timer built in the controller does
not count as standby time for a period of power failure. On the contrary, in case that the
operation start time is set in hours, the timer built in the controller counts as standby time for a
period of power failure.
When the operation start time reaches during power failure, the controller starts running just after
the power restoration.
4. In case of power failure during the fixed temperature operation and a soak period
of the Auto-Start operation
The controller resumes running toward to the preset temperature after the power restoration.
5. Notes
The BH series of a standard specification automatically restarts the drive when fed power again
after blacking out.