Mitsubishi Electric FR-E800, Инструкция по эксплуатации

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12. (M) Item and Output Signal for Monitoring
12.8 Output current detection function
12.8
Output current detection function
If the inverter output current which reaches a specific value is detected, the relative signal is output via an output terminal.
 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 parameter from 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.
 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.
Pr. Name
Initial
value
Setting range Description
150
M460 Output current detection
level
150% 0% to 400%
Set the level to detect the output current. Consider the value of
the rated inverter current as 100%.
151
M461 Output current detection
signal delay time
0 s 0 to 10 s
Set the timing to detect the output current. Enter the delay time
between the time when the output current reaches the set
current or higher and the time when the Output current
detection (Y12) signal is output.
152
M462
Zero current detection level 5% 0% to 400%
Set the level to detect the zero current. Consider the value of
the inverter rated current as 100%.
153
M463
Zero current detection time 0.5 s 0 to 10 s
Set the time from the time when the output current drops to the
Pr.152 setting or lower to the time when the Zero current
detection (Y13) signal is output.
166
M433 Output current detection
signal retention time
0.1 s
0 to 10 s Set the retention time period during which the Y12 signal is ON.
9999
The Y12 signal is retained ON. The signal turns OFF at the next
start-up of the inverter.
167
M464 Output current detection
operation selection
0 0, 1, 10, 11
Select the inverter operation at the time when the Y12 signal
and the Y13 signal turn ON.
Pr.167 setting When the Y12 signal turns ON When the Y13 signal turns ON
0 (initial value) Operation continues. Operation continues.
1 Operation stops by fault (E.CDO). Operation continues.
10 Operation continues. Operation stops by fault (E.CDO).
11 Operation stops by fault (E.CDO). Operation stops by fault (E.CDO).
Time
Pr.150
OFF ON
OFF
Output current
detection signal
(Y12)
Pr.166
Output current
Pr.166 "9999", Pr.167 = "0"
Pr.151