Yamato Scientific Hitech controller type Ⅳ - Manual (Page 28)

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3.5 Setting Date and Time
The timer clock built in Model High-Tech IV Programmable Controller has been
calibrated at the standard time in our factory. However, you still need to adjust it
periodically to make sure of its correct time indication in your operating environment.
In this paragraph, you will learn how to calibrate the built-in timer clock.
Note: The built-in timer clock causes an daily error of 12 seconds at a working
temperature of 25℃.
[Procedure] [Procedure] [Procedure] [Procedure]
Key
Operation
Main
Display Sub
Display Explanation
ｅ.ｇ.,
Push the
MODE key
and then
push either
▲key or ▼
key Push MODE key several times to
show (Clock) on the main
display. The sub display show j the
accumulated operation time in the order of
year, date and time at an interval of 2
seconds.
push ENTER
key. Activates Date & Time Set mode.
The sub display shows (Year)
and the main display flashes the present
data.
push ▲ or ▼ key to set the correct year.
Push ENTER
key. In about 1 second, Date Set mode is
activated. The sub display shows
(Month and Day) and the main
display flashes the present data. Push ▲or
▼ key to set the correct date.
Push ENTER
key. In about 1 second, Time Set mode is
activated. The sub display shows
(Hours and Minutes) and the
main display flashes the present data,
Push ▲or ▼ key to set the correct time.
Approx.1 second later Push ENTER
key.
The displays return to
their initial indications
shown immediately
before you pushed MODE
key.
Accepts the setting of Date ＆ Time.
Note: Note: Note: Note: if you want to cancel the calibration of Date ＆ Time, push ESC key or leave
the programmable controller for 20 seconds. Date & Time Setting Function works
only when the programmable controller is ready for operation with Operation
Menu selected or after operation.