Run Time / Power-On Time Over Signals - Hitachi L300P Series Instruction Manual

4–46
Using Intelligent Output Terminals
Run Time /
Power-On Time
Over Signals
L300P Series inverters accumulate the total hours in Run Mode (run time) and the total hours of
power-ON time. You can set thresholds for these accumulating timers. Once the threshold is
exceeded, an output terminal will turn ON. One use of this is for preventative maintenance. A
signal light or audible alert could signal the need for servicing, calibration, etc.
Opt.
Symbol Function Name
Code
11 RNT Run Time Over
12 ONT Power-ON Time
Over
11, 12, AL0 – AL2
Valid for
outputs:
B034
Required
settings:
Notes:
• The two outputs [RNT] and [ONT] share the
same time threshold parameter, B040.
Typically, you will use either the [RNT] or the
[ONT] output only—not both at once.
• These outputs are useful for the notification
that a preventative maintenance interval has
expired.
Output
Description
State
ON when the accumulated time spent in Run
Mode exceeds the limit (B034)
OFF when the accumulated time in Run Mode
is still less than the limit (B034)
ON when the accumulated power-ON time
exceeds the limit (B034)
OFF when the accumulated power-ON time is
less than the limit (B034)
Example: (Requires output configuration—
see page 3–48.)
Inverter output terminal circuit
12C 12A
24VDC
See I/O specs on page 4–8.
RNT or
ONT
11C 11A
+
L
–