Maintenance Handbook

SBS-800 Series Operator & Planned Maintenance Handbook
Chapter 9: Planned Maintenance
KH-1601-2 Issue 6
Page 66 of 80
VF-nC3 Single Phase Inverter (SBS-A229): Checking the fan run-time
- On the static inverter control panel, open the
small access door, press the MODE button
twice and ensure that Fr-F is displayed
- Rotate the thumb wheel until FE14 is
displayed then press the thumbwheel to
access the fan menu.
The run-time will be indicated by tx.xx where:
T0.01 = 1 hour, t1.00 = 100 hours.
Record the run-time and proceed to the
next step
- Rotate the thumb wheel until FE79 is
displayed, press the thumbwheel to access
the fan menu and 4 single height lines should
be shown:
The fan should be changed when the last line
changes to a double height line:
If any of the first three lines are double
height, this indicates that the capacitors are
at the end of their serviceable life and the
inverter assembly should be replaced at the
earliest opportunity.
Fan/ inverter replacement: See section 9.3 for details on
replacing the inverter.
Inverter display
Fan OK Change fan
Inverter display
or
Change inverter
VF-S15 Three Phase Inverter (SBS-A403/SBS-A404): Checking the fan run time
The procedure for checking the VF-S15 inverter is similar to the above however accessing the menu
is as follows:
Press MODE button twice and rotate the thumb wheel until FE79 is displayed.
ITEM DISPLAYED
PANEL
OPERATED
LED
DISPLAY
COMM
NO
DESCRIPTION
Parts replacement
alarm information.
FE79
The ON/OFF status of each of the cooling
fan circuit board capacitor of parts
replacement alarm, cumulative operation
time or number starting are displayed in bits.
e.g indicates failure
Note: Parts replacement alarm is displayed based on the value calculated from the annual average
ambient temperature specified using f634, the ON time of the inverter, the operating time of the motor
and the output current (load factor). Use this alarm as a guide only, since it is based on a rough
estimation.