■
Auto-resetting –
TRY
(Function code data = 26)
This output signal comes ON when auto-resetting is in progress.
The auto-reset is specified by H04 and H05. Refer to the descriptions of function codes H04
and H05 for details about the number of resetting times and reset interval.
■
Universal DO –
U-DO
(Function code data = 27)
Assigning this output signal to an inverter's output terminal and connecting the terminal to a digital
input terminal of peripheral equipment, allows to use the inverter to send commands to the peripheral
equipment via the communications link RS485 or CAN.
The universal DO can be used as an output signal independent of the inverter operation.
For the procedure for access to Universal DO via the communications link RS485 or CAN,
refer to the respective instruction manual.
■
Overheat early warning –
OH
(Function code data = 28)
This output signal issues an overheat early warning before an overheat trip actually occurs due to the
temperature on the inverter's heat sink (OH1) or inside the inverter (OH3) or due to an inverter
overload (OLU).
If this signal is turned ON, take any appropriate measures such as stop of the inverter operation and
enhancement of external cooling.
For details, refer to the description of L93 (Overheat Early Warning Level).
■
Service life alarm –
LIFE
(Function code data = 30)
This output signal comes ON when it is judged that the service life of any capacitors (reservoir
capacitor in the DC link bus and/or electrolytic capacitors on the printed circuit boards) 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.
For details, refer to the FRENIC-Lift (LM2A) Instruction Manual (INR-SI47-1894-E), Section
6.3.
■
Inverter output on –
RUN2
(Function code data = 35)
This output signal comes ON when the inverter turns ON its main circuit (output gate).
It also comes ON when the motor is being tuned.
■
Current detected and Current detected 2
–
ID
and
ID2
(Function code data = 37 and 38)
The
ID
or
ID2
signal comes ON when the output current of the inverter exceeds the level specified
by E34 or E37 (Current Detection, Level) respectively for the time longer than the one specified by
E35 (Current Detection, Time), provided that "37" or "38" is assigned to any general-purpose output
terminal, respectively. The minimum ON-duration is 100 ms.
It goes OFF when the output current drops below 90% of the rated operation level.
For details, refer to the descriptions of function codes E34, E35 and E37.
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