Hitachi SJ Series User Manual page 411

Chapter 12
12.19.12 Outputting a warning about the life
of the cooling fan
Ｑ
• I want to know the life of the cooling fan before it
reaches its life span.
Ａ
• Assign the output terminal function 030 [WAF]
cooling fan rotation speed reduction signal to one
of [CC-01] to [CC-07] that corresponds to the
output terminal and output the signal.
• The signal is output when it is detected that the
rotation speed of the cooling fan incorporated in
the inverter has decreased to 75% or less.
• The state of this signal can be monitored by using
the life diagnostic monitor. Refer to 13.11.1
"Checking the life monitor."
• A warning will also be displayed in the display
icons on the operating panel.
Parameter
Item
Output terminal function
selection 11-15
Relay output terminal
function selection 16A-16C
Relay output terminal
function selection
AL1-AL0/AL2-AL0
Life diagnostic monitor
Parameter Data
[CC-01]~[CC-05]
[CC-06]
030
[CC-07]
[dC-16] LL~HH
12-19-14
！
• Check the cooling fan for clogging when this signal
is output.
• This signal will not be output when the fan is
stopped by selecting the cooling fan operation.
Description
The cooling fan rotation speed reduction signal [WAF] is
output.
OFF: No warning
ON: Fan rotation speed has decreased
The monitors become H at the end of the life spans.
The monitor on the right indicates the lives of the
capacitors on the circuit board, whereas that on the left
indicates the life of the cooling fan.
Inverter Function