Hitachi WJ Series

Chapter 9 Inverter Functions
9-11-9
9.11.9 Outputting a Warning When RUN Time or Power-on Time Elapses
 How to be notified when the inverter has been running for a certain amount of time?
 How to be notified when the inverter power has been on for a certain amount of time?
 How to output a signal for the operating hours of the system incorporating the inverter?
 By assigning "Accumulated RUN time over [RNT] (11)" or "Accumulated power-on time over
[ONT] (12)" to one of the output terminal functions ([C021]/[C022]/[C026]), a signal can be
output when the operation time or power-on time exceeds the specified time.
 When the accumulated operation time of the inverter exceeds the time set in "Accum. RUN time
(RNT) / Accum. power-on time (ONT) [b034]", "Accumulated RUN time over [RNT](11)" is output.
 If the accumulated power-on time of the inverter exceeds the time set in "Accum. RUN time
(RNT) / Accum. power-on time (ONT) [b034]", "Accumulated power-on time over [ONT](12)" is
output.
 When setting the values as a rough guide for replacing the inverter, make sure you allow enough
time before replacement.
Code
Item
Description
Data
[d016]
Accumulated RUN time
monitor
Accumulates and stores the inverter
operation time to monitor the inverter.
0 to 999,000 (hr)
[d017]
Accumulated power-on
time monitor
Accumulates and stores the inverter power-
on time to monitor the inverter.
0 to 999,000 (hr)
[b034]
Accum. RUN time (RNT)/
Accum. power-on time (ONT)
Sets the elapsed time to output Accumulated
RUN time over [RNT] or Accumulated power-
on time over [ONT].
0 to 65,535 (× 10 hr)
[C021]
[C022]
[C026]
Output terminal function
Accumulated RUN time over [RNT]:
Outputs an Accumulated RUN time over
signal.
OFF: Below the set time
ON: Equal to or over the set time
11
Accumulated power-on time over [ONT]:
Outputs an Accumulated power-on time
over signal.
OFF: Below the set time
ON: Equal to or over the set time
12
■ Example of [RNT]/[ONT] setting
Accumulated RUN time over [RNT]/
Accumulated power-on time over [ONT] output conditions
[b034]
Example 1
Issue a warning when the inverter has been operated for 250 days/year ×
8 hours × 5 years = 10,000 hours since the factory default setting.
10000
Example 2
Issue a warning when the inverter has been operated for another 250
days/year × 8 hours × 3 years = 6,000 hours since (Example 1).
16000
(10000+6000)
Example 3
Issue a warning when the inverter power has been on for 300 days/year ×
24 hours × 3 years = 21,600 hours since the factory default setting.
21600
Example 4
Issue a warning when the inverter power has been on for another 250
days/year × 8 hours × 5 years = 10,000 hours since (Example 3).
31600
(21600+10000)
Q
A
!