Mitsubishi Electric 800 Series Instruction Manual page 308

5.8.8 Output current detection function
The output current during inverter running can be detected and output to the output terminal.
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 can be used for purposes such as 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.
• 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.
• Setting Pr.167 = "1" while the Y12 signal is ON does not cause E.CDO. The Pr.167 setting becomes valid after the Y12
signal is turned OFF.
• For 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.
• Select whether the inverter output stops or the inverter operation continues when Y12 signal turns ON, by setting Pr.167.
Pr.167 setting When Y12 signal turns ON When Y13 signal turns ON
0 (Initial value) Continuous operation
1 Inverter trip (E.CDO)
10 Continuous operation
11 Inverter trip (E.CDO)
Pr.166 "9999", Pr.167 = "0"
Pr.150
Output current
Pr.151
Output current
OFF
detection signal
(Y12)
Initial value Setting range
110% 0 to 220%
0 s 0 to 300 s
5% 0 to 220%
0.5 s 0 to 300 s
0.1 s 0 to 10 s
9999
0 0, 1, 10, 11
Continuous operation
Continuous operation
Inverter trip (E.CDO)
Inverter trip (E.CDO)
Time
Pr.166
OFF
ON
Description
Set the output current detection level. Consider the
value of the inverter rated current as 100%.
Set the time from when the output current exceeds the
Pr.150 setting until the Output current detection (Y12)
signal is output.
Set the zero current detection level.
The inverter rated current is regarded as 100%.
Set the time from when the output current falls below
the Pr.152 setting until the Zero current detection
(Y13) signal is output.
Set the retention time when the Y12 signal is ON.
Retain the Y12 signal ON status. The signal is turned
OFF at the next start.
Select the operation when Y12 and Y13 signals turn
ON.
5.8 (M) Monitor display and monitor output signal
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5. PARAMETERS