”
Menu #5 “Maintenance Information” (
%che
) contains information necessary for performing maintenance on the
inverter. The menu transition in “Maintenance Information” is same as that in Menu #3 “Drive Monitoring.” (Refer to
Section 3.4.3 .)
Basic key operation
To view the maintenance information, set function code E52 to “2” (Full-menu mode) beforehand.
(1) Turn the inverter ON. It automatically enters Running mode in which you press the
key to switch to
Programming mode. The function selection menu appears.
(2) Use the and keys to display “Maintenance Information” (
%che
).
(3) Press the key to proceed to the list of maintenance items (e.g.
5_00
).
(4) Use the and keys to display the desired maintenance item, then press the key.
The data of the corresponding maintenance item appears.
(5) Press the key to return to the list of maintenance items. Press the key again to return to the menu.
Table 3.4-12 Display Items in “Maintenance Information”
LED Monitor
shows:
Item Description
5_00
Cumulative run time
Shows the content of the cumulative power-ON time counter of
the inverter.
Counter range: 0 to 65,535 hours
Display: Upper 2 digits and lower 3 digits are displayed
alternately.
Example:
0
⇔
535h
(535 hours)
65
⇔
535h
(65,535 hours)
The lower 3 digits are displayed with
h
(hour).
When the count exceeds 65,535, the counter will be reset to “0”
and start over again.
5_01
DC link bus voltage
Shows the DC link bus voltage of the inverter main circuit.
Unit: V (volts)
5_02
Max. temperature inside the
inverter
Shows the maximum temperature inside the inverter for every
hour.
Unit: °C (Temperatures below 20°C are displayed as 20°C.)
The internal temperature is not measured at inverters of
FRN0069E2■-2 / FRN0044E2■-4 / FRN0011E2■-7 or
below models, and therefore the temperature is not displayed.
5_03
Max. temperature of heat
sink
Shows the maximum temperature of the inverter heat sink for
every hour.
Unit: °C (Temperatures below 20°C are displayed as 20°C.)
5_04
Max. effective output current
Shows the maximum current in RMS 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
(reservoir capacitor) in %, based on the capacitance when
shipping as 100%. Refer to Chapter 7 “MAINTENANCE AND
INSPECTION” for details.
Unit: %
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