“T” status is for factory use only. It should always be "N". “B” status indicates which Basic Plan is in effect. “A”
status indicates which Annual Plan is in effect. “XX” indicates no Annual Plan in use at this time. “MD” status
indicates whether 12H or 24H Mode is set for clock data output.
7.6 FORCING A RESTART [7] [7] [ENTER]
For training purposes or clearing all programming information from the master clock, a restart is recommended.
Press [7] [7] [ENTER]. The display will show the UNIT POWER FAIL message.
7.7 SOFTWARE VERSION [9] [9] [ENTER]
To check the version of the software installed in your master clock press [9] [9] [ENTER]. The display will read:
After 5 seconds the display will return to the time display.
7.8 SELECTING THE TIMEBASE [3] [0] [ENTER]
The default time base setting for the 6500 is for 60 HZ AC line synchronization. This is the preferred setting
installations in North America and other countries where 60 HZ power is available.
For countries where 50 HZ AC power is available, the MC4181N can be set to synchronize with the 50 HZ AC
power line.
For areas where the AC line frequency is not accurate, or in applications where an AC generator is used for
power, the 6500 can be set for an internal crystal time base.
To check or change the time base setting for the 6500 master clock press [3] [0] [ENTER]. The display will read:
The cursor will be on the 6. If this is correct for your application press [EXIT].
To select a different time base, do not press [EXIT]. Instead, press any key while the cursor is on the 6 and the
display will advance to the next time base selection. Other selections are:
Once the desired time base is shown on the display, press [ENTER].
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