1
8
Parameter Description
Parameter Description
•
When P.54=3, the output corresponds to the accumulation rate of temperature increase of the
inverter. If the temperature of the IGBT module of the inverter is too high and reaches the NTC
level, the function of external terminal SO will be FM function and a pulse of 1440Hz will be sent
out.
•
When P.54=4, the output corresponds to the electronic thermal rate. If either the electronic thermal
relay (when P.9 0) or the electronic thermal relay of the inverter’s IGBT module (when
P.9
= 0) is
running, the function of external terminal SO will be FM function, terminal SO will output a
1440Hz pulse.
•
FM terminal calibration procedures:
1. Insert an electric meter with a full graduation of 1mA or a frequency counter across terminal SO
and terminal SD, and set P.64 to 1, P.54 to 0 and P.74 to 0. Calibrate the header for accessory
variation.
2. Start the motor and fix the output frequency of the inverter to 60 Hz.
3. When the motor runs steadily, read the set value of
P.187
. At this point, the screen will display the
FM correction index. Press
to adjust the value of P.187. The screen will display a
progressively increase of the FM correction index. Press
SET
for more than 0.5 second, and the
pointer will move upward. Press
to adjust the value of P.187 downward, and the screen will
display a progressively decrease of the FM correction index. Press
SET
for more than 0.5 second
and the pointer will move downward.
•
When P.64=1 and P.74=1~10, the function of external terminal SO is 10 times the output function.
•
When P.74=5 and temporary running frequency is at 20Hz, we can detect output impulse wave
between terminal SO and SE as follows:
Note: 1. The multi-function output terminal is SO, When
P.40
=0 (the default value), it means ‘RUN’. When a
different value is set, the corresponding function will change according to what is shown in the above
table.
2. The internal electrical structures for the multi-function output terminals are the open collector output.
Please refer to
Section 3.5.6
and
Section 3.5.7
for wiring.
3. When the set value of P.85 is 5 (the default value), the function of the multi-function relay A-B-C is
ALARM. When the value of P.85 is revised, its function changes respectively as the corresponding
function listed in the table above.
4. When setting P.74 to non-zero, SO and FM functions will be invalid.
5. If the FM function is selected, If the users measured by a frequency counter, the value serious
fluctuation, please short SE and 5 terminals.
6. When P.74=1, the output will be 1-fold. The inverter can provide an output between 1 and 400 Hz with a
1% precision. The larger the rate of P.74, the larger the operation frequency, and the poorer the precision.
7. Resistor R must be greater than 3~10K .
R
SO
SE
Vo
T
Vo
10ms
24V
1.8V
0
D
C1
2~
24
V
