Output Current Detection Function (Y12, Y13, Pr. 150 To Pr. 153, Pr. 166, Pr. 167) - Mitsubishi Electric FR-A700 Instruction Manual

Function assignment of external terminals
6.14.7

Output current detection function (Y12, Y13, Pr. 150 to Pr. 153, Pr. 166, Pr. 167)

The output power during inverter running can be detected and output to the output terminal.
Pr.
Name
No.
Output current detection
150
level
Output current detection
151
signal delay time
Zero current detection
152
level
Zero current detection
153
time
Output current detection
166
signal retention time
Output current detection
167
operation selection
When Pr. 570 Multiple rating setting ≠ "2", performing all parameter clear and inverter reset
changes the initial value and setting range. (Refer to section 6.7.5.)
Output current detection (Y12, Pr. 150, Pr. 151, Pr. 166, Pr. 167)
The output power 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".
Set "12 (source logic)" or "112 (sink 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.
Fig. 6-138: Output current detection (Pr. 166 ≠ 9999, Pr. 167 = 0)
6 - 312
Initial Setting
Description
Value Range
Set the output current detection level.
0–220%
150%
100% is the rated inverter current.
Set the output current detection period.
Set the time from when the output cur-
0s 0–10s rent has risen above the setting until the
output current detection signal (Y12) is
output.
Set the zero current detection level. The
5% 0–250% rated inverter current is assumed to be
100%.
Set this parameter to define the period
from when the output current drops
0.5s 0–1s
below the Pr. 152 value until the zero
current detection signal (Y13) is output.
Set the retention time when the Y12 sig-
0–10s
nal is on.
0.1s
The Y12 signal on status is retained. The
9999
signal is turned off at the next start.
Operation continues when the Y12 signal
0
is on.
0
The inverter is brought to an alarm stop
1
when the Y12 signal is on. (E.CDO)
Output current
Pr. 150
Output current
detection signal Y12
Pr. 151
Pr. 166
(Minimum 100ms)
ON
Parameter
Parameters referred to
Online auto tuning
Offline auto tuning
190–196 Output terminal
function selection
Time
Refer to
Section
6.12.3
6.12.4
6.14.5
I001155E