5-59
Inverter running 2 --
RUN2
(Function code data = 35)
This signal acts in the same way as
RUN
(Function code data = 0) except that
RUN2
is ON
even when the DC braking is in operation.
Overload prevention control --
OLP
(Function code data = 36)
This output signal comes ON when the overload prevention control is activated. The minimum
ON-duration is 100 ms. (Refer to the description of H70.)
Current detected and Current detected 2 --
ID
and
ID2
(Function code data = 37, 38)
The
ID
or
ID2
output signal comes ON when the output current of the inverter exceeds the
level specified by E34 (Current detection (Level)) or E37 (Current detection 2 (Level)) for the
time longer than the one specified by E35 (Current detection (Timer)) or E38 (Current
detection 2 (Timer)), respectively. The minimum ON-duration is 100 ms.
The
ID
or
ID2
goes OFF when the output current drops below 90% of the rated operation
level.
These two output signals can be assigned to two different digital output terminals
independently if necessary.
Function code E34 is effective for not only the motor overload early warning
OL
, but
also for the operation level of the current detection
ID
. (Refer to the description of
E34.)
Low current detected --
IDL
(Function code data = 41)
This output signal comes ON when the inverter output current drops below the low current
detection level (E34) and it remains at the low level for the timer period (E35). When the
output current exceeds the current detection level (E37) by 5% or more of the inverter rated
current, this signal goes OFF. The minimum ON-duration is 100 ms. (Refer to the description
of E34.)
Under PID control --
PID-CTL
(Function code data = 43)
This output signal comes ON when PID control is enabled ("Cancel PID control" (
Hz/PID
) =
OFF) and a run command is ON. (Refer to the description of J01.)
Motor stopped due to slow flowrate under PID control --
PID-STP
(Function code data = 44)
This output signal comes ON when the inverter is stopped by the slow flowrate stop function
under PID control. (Refer to the descriptions of J15 through J17.)
When PID control is enabled, the inverter may stop due to the slow flowrate stop
function or other reasons, with the
PID-CTL
signal being ON. As long as the
PID-CTL
signal is ON, PID control is effective, so the inverter may abruptly resume
its operation, depending on the PID feedback value.
When PID control is enabled, even if the inverter stops its output during operation because of
sensor signals or other reasons, operation will resume automatically.
Design your machinery so that safety is ensured even in such cases.
Otherwise, an accident could occur.
