
Maintenance Timer Display Function
6-
183
Maintenance Timer Display Function
This function indicates that the estimated performance life of the cooling fan and electrolytic capacitor
have been reached.
Settings Required to Use Maintenance Timer Display Function
Set H2-
to 2F to use a multi-function contact output for this function and display an alarm on the Digital
Operator (the constants U1-61 and U1-63).
Multi-function Contact Outputs (H2-01 to H2-03)
The maintenance time period for the cooling fan or electrolytic capacitor can be output from the multi-func-
tion contact terminal by setting H2-
to 2F. Minor faults will not be output.
Refer to
Multi-function Contact Outputs: H2
in
Chapter 5 User Constants
for information on multi-function
contact outputs.
Related Status Monitoring Constants
IMPORTANT
The maintenance time periods displayed in the monitors as a percentage to the total life are only an estimate, not an exact
prediction of actual performance life.
Use them as guidelines for replacement.
Set-
ting
Value
Function
Control Methods
V/f
V/f
with
PG
Open
Loop
Vec-
tor
1
Flux
Vec-
tor
Open
Loop
Vec-
tor
2
2F
Maintenance Time
ON: The operation time of either the electrolytic capacitors or the cooling fan has
reached the specified maintenance time.
Yes
Yes
Yes
Yes
Yes
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vec-
tor
Open
Loop
Vector
2
U1-40
Cooling fan
operating time
Monitors the total operating time
of the cooling fan. The time can
be set in o2-10.
(Can-
not be
out-
put.)
1
hr
A
A
A
A
A
A
67H
风扇运行时间
U1-61
Electrolytic
capacitor main-
tenance
For maintenance purposes, this
timer shows the amount of time
the electrolytic capacitors have
been operating. Capacitors should
be replaced when the monitor
reaches 100%.
(Can-
not be
out-
put.)
1%
A
A
A
A
A
A
7CH
电容维护时期
U1-63
Cooling fan
maintenance
This monitor displays the amount
of time the cooling fan has been
operating. Replace the cooling fan
when the display reads 100%.
(Can-
not be
out-
put.)
1%
A
A
A
A
A
A
7EH
冷却扇维护