128
Function assignment of external terminal and control
4.11.7 Output current detection function
(Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167)
The above parameters can be set when
Pr.
160 Extended function display selection
= "0".
....... Specifications differ according to the date assembled.
to check the SERIAL number.
The output current during drive unit running can be detected and output to the output terminal.
Parameter
Number
Name
Initial Value
Setting
Range
Description
150
Output current detection
level
150%
0 to 200%
100% is the drive unit rated current.
151
Output current detection
signal delay time
0s
0 to 10s
Output current detection period.
The time from when the output current has risen
above the setting until the Output current detection
(Y12) signal is output.
152
Zero current detection
level
5%
0 to 200%
The drive unit rated current is assumed to be 100%.
153
Zero current detection
time
0.5s
0 to 1s
Period from when the output current drops below the
Pr. 152
value until the Zero current detection (Y13)
signal is output.
166
Output current detection
signal retention time
0.1s
0 to 10s
Set the retention time when the Y12 signal is ON.
9999
Retain the Y12 signal ON status. The signal is turned
OFF at the next start.
167
Output current detection
operation selection
0
0, 1, 10, 11
Select the operation when Y12 signal turns ON.
(1) Output current detection (Y12) signal
(
Pr. 150, Pr. 151, Pr. 166, Pr. 167
)
The output current detection function can be used for
excessive torque detection, etc.
If the output during drive unit running is the
Pr. 150
setting or
higher for the time set in
Pr. 151
or longer, the Output current
detection (Y12) signal is output from the drive unit'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.
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
Pr. 190
or
Pr. 192 (output terminal function selection)
and assign functions to the output terminal.
Select whether the drive unit output stops or the drive unit
operation continues when Y12 signal turns ON, by setting
Pr.
167
.
The setting is not effective in the low-speed range (lower than 10% of the
rated speed).
Detection occurs while all requirements are satisfied.
The states while a drive unit is reset (the power supply is OFF) and while a
drive unit error occurs are included.
When
Pr. 167
= "10 or 11", output current is not detected in main circuit
capacitor life measurement.
Time
Pr. 150
OFF
ON
OFF
Output current
detection (Y12) signal
Pr. 166
Output current
Pr. 166
9999,
Pr. 167
= 0
Pr. 151
Pr. 167
Setting
When Y12
Signal Turns
ON
Output Current Detection
Requirements
0 (initial
value)
Continuous
operation
Except during output shutoff
1
Drive unit trip
(E.CDO)
10
Continuous
operation
Except during output shutoff
During drive unit operation (during
motor running) (after completion
of start time tuning)
Except during drive unit operation
in a low-speed range
11
Drive unit trip
(E.CDO)
Summary of Contents for FR-D720-0.2K-G
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