3-28
Table 3.18 Maintenance Display Items
LED Monitor
shows:
Contents Description
5_00
Cumulative run
time
Shows the cumulative power-ON time of the inverter.
Unit: thousands of hours.
When the total ON-time is less than 10000 hours (display: 0.001 to
9.999), data is shown in units of one hour. When the total time is
10000 hours or more (display: 10.00 to 65.53), it is shown in units of
10 hours. When the total time exceeds 65535 hours, the display will
be reset to 0 and the count will start 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 shipping as 100%. Refer to Chapter 7
"MAINTENANCE AND INSPECTION" for details.
Unit: %
5_06
Cumulative run
time of electrolytic
capacitors on the
printed circuit
boards
Shows the cumulative run time of the capacitors mounted on the
printed circuit boards.
The display method is the same as for "accumulated run time" above.
However, when the total time exceeds 65535 hours, the count stops
and the display remains at 65.53.
5_07
Cumulative run
time of the
cooling fan
Shows the cumulative run time of the cooling fan.
This counter does not work when the fan stops even if the cooling fan
ON/OFF control (function code H06) is enabled.
The display method is the same as for "Cumulative run time (
5_05
)
above.
However, when the total time exceeds 65535 hours, the count stops
and the display remains at 65.53.
5_08
Number of
startups
Shows the cumulative counter of times the inverter is started up (i.e.,
the number of run commands issued).
1.000 indicates 1000 times. When any number from 0.001 to 9.999 is
displayed, the counter increases by 0.001 per startup, and when any
number from 10.00 to 65.53 is counted, the counter increases by 0.01
every 10 startups. When the counted number exceeds 65535, the
counter will be reset to 0 and the count will start again.
5_11
No. of RS-485
errors
Shows the cumulative total number of RS-485 communication errors
since first power ON.
Once the number of errors exceeds 9999, the display (count) returns
to 0.
5_12
RS-485 com-
munications
error content
Shows the latest error that has occurred with RS-485 communica-
tions in decimal format.
For error contents, refer to the RS-485 Communication User's Manual
(MEH448).
5_14
ROM version of
the inverter
Shows the ROM version of the inverter as a 4-digit display.
5_16
ROM version of
the keypad
Shows the ROM version of the keypad panel as a 4-digit display. (For
active remote keypad only.)
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