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Pr.
Name
150
Output current detection
M460
level
151
Output current detection
M461
signal delay time
152
Zero current detection level
M462
153
Zero current detection time
M463
166
Output current detection
M433
signal retention time
167
Output current detection
M464
operation selection
 Output current detection (Y12 signal, Pr.150, Pr.151, Pr.166, Pr.167)
• The output current detection function is useful for overtorque detection.
• If the inverter output during inverter running remains higher than the Pr.150 setting for the time set in Pr.151 or longer, the
Output current detection (Y12) signal is output from the inverter's open collector or the relay output terminal.
• When the Y12 signal turns ON, the ON state is retained for the time set in Pr.166.
• When Pr.166 = "9999", the ON state is retained until the next start-up of the inverter.
• Setting Pr.167 = "1" while the Y12 signal is ON does not cause the fault E.CDO. The Pr.167 setting becomes valid after
the Y12 signal is turned OFF.
• To use the Y12 signal, set "12 (positive logic) or 112 (negative logic)" in any of Pr.190 to Pr.196 (Output terminal function
selection) to assign the function to the output terminal.
• Use Pr.167 to select the inverter operation at the time when Y12 signal turns ON, whether the inverter output stops or the
inverter operation continues.
Pr.167 setting
0 (initial value)
1
10
11
Pr.166
"9999", Pr.167 = "0"
Pr.150
Output current
Output current
detection signal
(Y12)
 Zero current detection (Y13 signal, Pr.152, Pr.153)
• If the inverter output during inverter running remains higher than the Pr.152 setting for the time set in Pr.153 or longer, the
Zero current detection (Y13) signal is output from the inverter's open collector or the relay output terminal.
• Once the Zero current detection (Y13) signal turns ON, the signal is retained ON for at least 0.1 seconds.
• If the inverter output current drops to zero, slippage due to gravity may occur, especially in a lift application, because the
motor torque is not generated. To prevent this, the Y13 signal can be output from the inverter to apply the mechanical brake
at zero current output.
322
5. PARAMETERS
5.8 (M) Item and output signal for monitoring
Initial value
FM
120%
110%
0 s
5%
0.5 s
0.1 s
0
When the Y12 signal turns ON
Operation continues.
Operation stops by fault (E.CDO).
Operation continues.
Operation stops by fault (E.CDO).
Pr.151
Time
Pr.166
OFF
OFF
ON
Setting range
CA
Set the level to detect the output current.
0 to 400%
Consider the value of the rated inverter current as 100%.
Set the timing to detect the output current. Enter the delay
time between the time when the output current reaches
0 to 10 s
the set current or higher and the time when the Output
current detection (Y12) signal is output.
Set the level to detect the zero current.
0 to 400%
Consider the value of the inverter rated current as 100%.
Set the time from the time when the output current drops
0 to 10 s
to the Pr.152 setting or lower to the time when the Zero
current detection (Y13) signal is output.
Set the retention time period during which the Y12 signal
0 to 10 s
is ON.
The Y12 signal is retained ON. The signal turns OFF at
9999
the next start-up of the inverter.
Select the inverter operation at the time when the Y12
0, 1, 10, 11
signal and the Y13 signal turn ON.
Operation continues.
Operation continues.
Operation stops by fault (E.CDO).
Operation stops by fault (E.CDO).
Description
When the Y13 signal turns ON

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