Output Current Detection Function (Y12 Signal, Y13 Signal, Pr. 150 To Pr. 153, Pr. 166, Pr. 167) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Function assignment of external terminal and control
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
Output current detection
150
level
Output current detection
151
signal delay time
152 Zero current detection level
153 Zero current detection time
Output current detection
166
signal retention time
Output current detection
167
operation selection
Pr. 166 9999, Pr. 167 = 0
Pr. 150
Output current
Pr. 151
Output current
OFF
detection signal
(Y12)
248
Name Initial Value
150%
0s
5%
0.5s
0.1s
(1) Output current detection (Y12 signal, Pr. 150, Pr.
Time
Pr. 166
Minimum 0.1s
(initial value)
OFF
ON
Setting Range
0 to 220%
0 to 10s
0 to 220%
0 to 1s
0 to 10s
9999
0
0
1
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 trips and the output
current detection fault (E.CDO) is displayed when the Y12 signal
turns ON. When fault 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 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.
Description
Set the output current detection level. 100%
is the rated inverter current.
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.
Set the zero current detection level. The rated
inverter current is assumed to be 100%.
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.
Set the retention time when the Y12 signal is
ON.
The Y12 signal ON status is retained. The
signal is turned OFF at the next start.
Operation continues when the Y12 signal is
on
The inverter trips when the Y12 signal is ON.
(E.CDO)