3.3 Programming Mode
3-21
Chap. 3 OPERATION USING THE KEYPAD
3.3.5 Reading maintenance information--"Maintenance Information"
Menu #5 "Maintenance information" in Programming mode contains information necessary for
performing maintenance on the inverter. Table 3.12 lists the maintenance information display items
and Figure 3.9 shows the status transition for maintenance information.
Table 3.12 Maintenance Display Items
LED monitor
shows:
Display contents Description
5_00
Accumulated run
time
Shows the accumulated power-ON time of the inverter.
Unit: 1,000 hours
When the count is less than 10,000 hours (display: 0.001 to 9.999), it
is possible to check data in units of hours.
When the count is 10,000 hours or more (display: 10.00 to 65.53), the
display will change to units of 10 hours. When it exceeds 65,535
hours, the count will be reset to "0" and start over again.
5_01
DC link bus
voltage
Shows the DC link bus voltage of the inverter.
Unit: V (volts)
5_03
Max. temperature
of heat sink
Shows the maximum temperature of the heat sink for every hour.
Unit: ºC
5_04
Max. effective
current
Shows the maximum effective current for every hour.
Unit: A (amperes)
5_05
Capacitance of the
DC link bus
capacitor
Shows the current capacitance of the DC link bus capacitor, based on
the capacitance when shipped as 100%. Refer to the FRENIC-Mini
Instruction Manual, Chapter 7 "MAINTENANCE AND
INSPECTION" for details.
Unit: %
5_06
Accumulated run
time of electrolytic
capacitors on the
printed circuit
boards
Shows the accumulated time during which a voltage is applied to the
electrolytic capacitors on the printed circuit boards.
Unit: 1,000 hours (Display range: 0.01 to 99.99)
When the count is less than 99,990 hours (Display: 0.01 to 99.99), it is
possible to check data in units of 10 hours (0.01).
When the count exceeds 99,990 hours, it stops and the LED monitor
sticks to 99.99.
5_07
Accumulated run
time of the cooling
fan
Shows the accumulated run time of the cooling fan.
If the cooling fan ON/OFF control (function code H06) is enabled, the
time when the fan is stopped is not counted.
Unit: 1,000 hours (Display range: 0.01 to 99.99)
When the count is less than 99,990 hours (Display: 0.01 to 99.99), it is
possible to check data in units of 10 hours (0.01).
When the count exceeds 99,990 hours, it stops and the LED monitor
sticks to 99.99.
5_08
Number of startups The motor run times (the number of times the inverter run command
is set to ON) are calculated and displayed.
1.000 indicates 1,000 times. When any number ranging from 0.001 to
9.999 is displayed, the count increases by 0.001 per startup, and when
any number from 10.00 to 65.53 is displayed, the count increases by
0.01 every 10 startups.
If the count exceeds 65,535, it will be reset to "0" and start over again.
5_09
Input watt-hour Shows the input watt-hour of the inverter.
Unit: 100 kWh (Display range: 0.001 to 9999)
Depending on the value of input watt-hour, the decimal point on the
LED monitor shifts to show it within the LED monitors’ resolution
(Display resolution: 0.001 → 0.01 → 0.1 → 1).
To reset the integrated input watt-hour and its data, set function code
E51 to "0.000."
When the count exceeds 1,000,000 kWh, it will be reset to "0."
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