5-51
Inverter output limiting with delay -- IOL2 (Function code data = 22)㩷
If the inverter enters any output limiting operation such as output torque limiting, output
current limiting, automatic deceleration (anti-regenerative control), or overload stop (hit and
stop), it automatically activates the stall-free facility and shifts the output frequency. When
such an output limiting operation continues for 20 ms or more, this output signal comes ON.
This signal is used for lessening the load or alerting the user to an overload status with the
monitor.
Heat sink overheat early warning -- OH (Function code data = 28)㩷
This output signal is used to issue a heat sink overheat early warning that enables you to take
a corrective action before an overheat trip
J
actually happens.
This signal comes ON when the temperature of the heat sink exceeds the "overheat trip
J
temperature minus 5°C," and it goes OFF when it drops down to the "overheat trip
J
temperature minus 8°C."
Service lifetime alarm -- LIFE (Function code data = 30)㩷
This output signal comes ON when it is judged that the service life of any one of capacitors
(DC link bus capacitors and electrolytic capacitors on the printed circuit board) and cooling fan
has expired.
This signal should be used as a guide for replacement of the capacitors and cooling fan. If this
signal comes ON, use the specified maintenance procedure to check the service life of these
parts and determine whether the parts should be replaced or not.
Reference loss detected -- REF OFF (Function code data = 33)㩷
This output signal comes ON when an analog input used as a frequency command source is
in a reference loss state (as specified by E65) due to a wire break or a weak connection. This
signal goes OFF when the operation under the analog input is resumed. (Refer to the
description of E65.)
Inverter output on -- RUN2 (Function code data = 35)㩷
This output signal comes ON when the inverter is running at the starting frequency or below or
the DC braking is in operation.
Overload prevention control -- OLP (Function code data = 36)㩷
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)㩷
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 o
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