Output Current Detection Function (Y12 Signal, Y13 Signal, Pr.150 To Pr.153) - Mitsubishi Electric FR-E700EX Instruction Manual

Function assignment of external terminal and control

4.12.7 Output current detection function (Y12 signal, Y13 signal, Pr.150 to Pr.153)

The output current during drive unit running can be detected and output to the output terminal.
Parameter
number
Output current detection
150
level
Output current detection
151
signal delay time
Zero current detection
152
level
Zero current detection
153
time
The above parameters can be set when Pr.160 Extended function display selection = "0". (Refer to page 182)
Pr.150
Output current
OFF
detection signal
(Y12)
Pr.152
Pr.152
0[A]
OFF ON
Start signal
Zero current
OFF
detection time
(Y13)
 The zero current detection signal (Y13) holds the
signal for approximately 100ms once turned ON.
REMARKS
 The response time of Y12 and Y13 signals is approximately 0.1s. Note that the response time changes according to the load
condition.
 When Pr.152 = "0", detection is disabled.
NOTE
 Changing the terminal assignment using Pr.190 to Pr.192 (output terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
150
Name Initial value
150%
0s
5%
0.5s
Pr.151
100ms
OFF
ON
100ms∗ Time
OFF
ON ON
Pr.153 Pr.153
Detection time Detection time
Setting
range
0 to 200%
0 to 10s
0 to 200%
0 to 1s
(1) Output current detection (Y12 signal, Pr.150,
Pr.151)
 The output current detection function can be used for
excessive torque detection, etc.
 If the output current remains at the Pr.150 setting or higher
during drive unit operation for longer than the time set in
Pr.151, the output current detection signal (Y12) is output
from the drive unit's open collector or relay output terminal.
Time
 When the Y12 signal turns ON, the ON state is held for
approximately 100ms.
 For the Y12 signal, set "12 (positive logic) or 112 (negative
logic)" in Pr.190 to Pr.192 (output terminal function selection)
and assign functions to the output terminal.
(2) Zero current detection (Y13 signal, Pr.152, Pr.153)
 If the output current remains at the Pr.152 setting or lower
during drive unit operation for longer than the time set in
Pr.153, the zero current detection (Y13) signal is output from
the drive unit's open collector or relay output terminal.
 When the drive unit's output current falls to "0", torque will
not be generated. This may cause a drop due to gravity
when the drive unit is used in vertical lift application.
To prevent this, the Y13 signal can be output from the drive
unit to close the mechanical brake when the output current
has fallen to "zero".
 For the Y13 signal, set "13 (positive logic) or 113 (negative
logic)" in Pr.190 to Pr.192 (output terminal function selection)
and assign functions to the output terminal.
Description
100% is the rated drive unit current.
Output current detection period.
The time from when the output current has risen
above the setting until the output current
detection signal (Y12) is output.
The rated drive unit current is assumed to be
100%.
Period from when the output current drops below
the Pr.152 value until the zero current detection
signal (Y13) is output.