Real Time Clock Function - Mitsubishi Electric FR-F820-00046 Instruction Manual

5.4.1

Real time clock function

The time can be set. The time can only be updated while the inverter power is ON.
The real time clock function is enabled using an optional LCD operation panel (FR-LU08).
Pr. Name
1006
Clock (year) 2000 (year)
E020
1007 Clock (month, 101 (January
E021 day) 1)
1008 Clock (hour,
0 (00:00)
E022 minute)
 Simple clock function
• When the current year, month, day, hour and minute are set in the parameters above, the inverter internal clock starts
ticking. The set date and time can be checked by reading the parameters.
NOTE
• The time data of the internal clock is saved in the inverter's EEPROM every 10 minutes.
• The clock does not run while the control circuit power is OFF. The clock needs to be set every time after turning ON the inverter
power. Prepare separate power supply, such as an external 24 V power supply, to supply power continuously to the control
circuit for the simple clock function.
• However, if the power to the main circuit of the inverter is turned ON with the control circuit power already ON, the clock data
is reset to the data stored in EEPROM because the Inverter reset is performed whenever the power is supplied to the main
circuit of the inverter in the initial setting. To prevent the clock from resetting, set Pr.30 Regenerative function selection.
(Refer to page 539.)
• The set time is used for functions such as the Fault history.
 Real time clock function
• When the FR-LU08 is connected to the inverter, the internal clock of the inverter can be synchronized with the clock in the
FR-LU08 (Real time clock function). The FR-LU08 with battery (CR1216) backup can keep its clock function running even
if the main power of the inverter is turned OFF. (The inverter internal clock stops running when the inverter power is turned
OFF.)
• To adjust the clock in the FR-LU08, set Pr.1006 to Pr.1008 on the FR-LU08.
NOTE
• Time synchronization between the inverter internal clock and the clock in the FR-LU08 is performed every one minute.
• If the FR-LU08 clock is reset due to dead battery for example, the data in the inverter internal clock is used.
Initial value Setting range
2000 to 2099
101 to 131, 201 to 228 (229), 301 to 331,
401 to 430, 501 to 531, 601 to 630, 701 to
731, 801 to 831, 901 to 930, 1001 to
1031, 1101 to 1130, 1201 to 1231
0 to 59, 100 to 159, 200 to 259, 300 to
359, 400 to 459, 500 to 559, 600 to 659,
700 to 759, 800 to 859, 900 to 959, 1000
to 1059, 1100 to 1159, 1200 to 1259,
1300 to 1359, 1400 to 1459, 1500 to
1559, 1600 to 1659, 1700 to 1759, 1800
to 1859, 1900 to 1959, 2000 to 2059,
2100 to 2159, 2200 to 2259, 2300 to 2359
Count-up
Hz Out 1:00
0. 00
Hz
−−− STOP PU
1:00
PREV SET NEXT
Synchronization
1:00
Power-OFF
Inverter internal clock Inverter internal clock
Set the year.
Set the month and day.
1000's and 100's digits: Month (1 (January) to 12
(December)).
10's and 1's digits: Day (1 to the last day of the
month (28, 29, 30, or 31)).
For December 31, set "1231".
Set the hour and minute using the 24-hour clock.
1000's and 100's digits: 0 to 23 hours,
10's and 1's digits: 0 to 59 minutes.
For 23:59, set "2359".
Count-up
Hz Out 2:00 Hz Out 3:00
0. 00 0. 00
Hz Hz
−−− STOP PU −−− STOP PU
2:00 3:00
PREV SET NEXT PREV SET NEXT
Synchronization
1:00 3:00
Power-ON
Inverter internal clock
5.4 (E) Environment setting parameters
Description
187
5. PARAMETERS
1
2
3
4
5
6
7
8
9
10