Toshiba TOSVERT VF-MB1 Instruction Manual page 211

6.24.15 Parts replacement alarms
f634 : Annual average ambient temperature (Parts replacement alarms)
 Function
You can set the inverter so that it will calculate the remaining useful lives of the cooling fan, main
circuit capacitor and on-board capacitor from the ON time of the inverter (cumulative power on time),
the operating time of the motor (cumulative operation time), cooling fan operation time (cumulative
fan operation time), the output current (inverter load factor) and the setting of f634 , and that it will
display and send out an alarm through output terminals when each component is approaching the
time of replacement.
[Parameter setting]
Title
Annual average ambient temperature
f634
(parts replacement alarms)
Display of part replacement alarm information
Part replacement alarm information (Refer to chapter 8) in the Status monitor mode allows you to check on
the time of replacement.
An example of display:
Output of part replacement alarm signal
The parts replacement alarm is assigned to the output terminal.
Setup example) When the parts replacement alarm is assigned to the OUT terminal
Title
Output terminal selection 2A
f131
(OUT)
Setting value 129 is reverse signal.
Note 1: Using f634  enter the annual average temperature around the inverter. Be careful not to enter the
annual highest temperature .
Note 2: Set f634 at the time of installation of the inverter, and do not change its setting after the start of
use. Changing the setting may cause parts replacement alarm calculation error.
The cumulative power on time, cumulative fan operation time and cumulative operation time until present
time can be monitored by setting status monitor mode. (Refer to chapter 8)
The monitor value of cumulative fan operation time and cumulative operation time are reset to 0(zero) by
parameter typ . (Refer to section 4.3.2)
Function

Function Adjustment range
0-255
F-91
Adjustment range
1: -10 to +10  C
2: 11-20  C
3: 21-30  C
4: 31-40  C
5: 41-50  C
6: 51-60  C
128: LTA (Parts replacement
alarm)
E6581697
Default setting
3
6
Setting