239
Function assignment of external terminal and control
4
P
ARAME
T
E
R
S
4.15.8 Output current detection function
(Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167)
The output power during inverter running can be detected and output to the output terminal.
Parameter
Number
Name
Initial Value
Setting Range
Description
150
Output current detection
level
150%*
0 to 220%*
Set the output current detection level. 100%
is the rated inverter current.
151
Output current detection
signal delay time
0s
0 to 10s
Set the output current detection period. Set
the time from when the output current has
risen above the setting until the output current
detection signal (Y12) is output.
152
Zero current detection level
5%
0 to 220% *
Set the zero current detection level. The rated
inverter current is assumed to be 100%.
153
Zero current detection time
0.5s
0 to 1s
Set this parameter to define the period from
when the output current drops below the
Pr.
152
value until the zero current detection
signal (Y13) is output.
166
Output current detection
signal retention time
0.1s
0 to 10s
Set the retention time when the Y12 signal is
on.
9999
The Y12 signal on status is retained. The
signal is turned off at the next start.
167
Output current detection
operation selection
0
0
Operation continues when the Y12 signal is
on
1
The inverter is brought to an alarm stop when
the Y12 signal is on. (E.CDO)
* When
Pr. 570 Multiple rating setting
≠
"2", performing inverter reset and all parameter clear changes the initial value and setting
range.
(Refer to page 149.)
(1) Output current detection (Y12 signal,
Pr. 150, Pr.
151, Pr. 166, Pr. 167
)
⋅
The output current detection function can be used for excessive
torque detection, etc.
⋅
If the output current remains higher than the
Pr. 150
setting during
inverter operation for longer than the time set in
Pr. 151
, the
output current detection signal (Y12) is output from the inverter's
open collector or relay output terminal.
⋅
When the Y12 signal turns on, the ON state is held for the time
set in
Pr. 166
.
⋅
When
Pr. 166
= "9999", the ON state is held until a next start.
⋅
At the
Pr. 167
setting of "1", the inverter output is stopped and the
output current detection alarm (E.CDO) is displayed when the
Y12 signal turns on. When an alarm stop occurs, the Y12 signal
is on for the time set in
Pr. 166
at the
Pr. 166
setting of other than
9999, and remains on until a reset is made at the
Pr. 166
setting
of 9999. E.CDO does not occur even if "1" is set in
Pr. 167
while
Y12 is ON. The
Pr. 167
setting is made valid after Y12 turns OFF.
⋅
Set "12 (positive logic)" or "112 (negative logic)" to any of
Pr. 190
to Pr. 196 (output terminal function selection)
to assign the function
of the Y12 signal to the output terminal.
Time
Pr. 150
OFF
ON
OFF
Output current
detection signal
(Y12)
Pr. 166
Minimum 100ms
(initial value)
Output current
Pr. 166
9999,
Pr. 167
= 0
Pr. 151
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