Toshiba VF-NC3C Instruction Manual page 129

FOR REFERENCES ONLY
6.18.13 VI analog input break detection
 : VI analog input break detection level
 Function
The inverter will trip if the VI value remains below the specified value for about 0.3 seconds. In such a
case, "" is displayed.
=0: Disabled....Not detected.
=1-100....The inverter will trip if the VI input remains below the specified value for about 0.3 seconds.
[Parameter setting]
Title

Note : The VI input value may be judged earlier to be abnormal, depending on the degree of deviation of the
analog data detected.
6.18.14 Parts replacement alarms
 : Annual average ambient temperature (Parts replacement alarms)
 Function
6
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, the operating time of the
motor, the output current (load factor) and the setting of , 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

 Display of part replacement alarm information
Part replacement alarm information (Refer to page H-4) 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

Setting value 129 is reverse signal.
Note 1: Using  enter the annual average temperature around the inverter. Be careful not to enter the
annual highest temperature
Note 2: Set  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.
VFNC3C ENGLISH MANUAL
Function
VI analog input break detection level
Function
Annual average ambient temperature
(parts replacement alarms)

Function
Output terminal selection 1A
0  255
(OUT)
F-56
NOT SUBJECTED FOR RESALE
Adjustment range
0: Disabled
1-100%
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
Adjustment range
128: LTA (Parts replacement
alarm)
Default setting
0
Default setting
3
Setting