Yamato Scientific Hitech controller type Ⅳ - Manual (Page 27)

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3.4 Indication of Integrating Operation Time
This function accumulates the operation time when Power key is turned on. Maximum
accumulation of time is 49,999 hours, which cannot be reset. Accumulated operation
time provides useful information when you determine the timing of maintenance.
In this paragraph, you will learn how to show the accumulated operation time.
[Procedure] [Procedure] [Procedure] [Procedure]
(1) Push the MODE key and then push either ▲ key or ▼ key
(2) Push the MODE key and then push either ▲ key or ▼ key to show
(Accumulation) on the main display. The sub display shows the accumulated
operation time at present (in the unit of hours),
Note: You do not need to push ENTER key, because this function only shows the
accumulated operation time. In this function, ENTER key and ▲and ▼ keys do not
work.
(3) When you want to cancel the function, push ESC key or leave the programmable
controller for 20 seconds, The displays return to their indications shown immediately
before you pushed MODE key.
[Expression of Accumulated Operation Time] [Expression of Accumulated Operation Time] [Expression of Accumulated Operation Time] [Expression of Accumulated Operation Time]
When the accumulated operation time exceeds 9999 hours 59 minutes, the sub display
goes back to 0 (zero) and starts emulating time again. Decimal point also moves to the
left by one digit at every operation time of 10,000 hours.
①
Figure① shows an accumulated operation time of 10,050 hours.
②
③
In the same manner, ② means 20,050 hours, ③ 30,050 hours and
④40,050 hours
④