Mitsubishi Electric F700, Instruction Manual

Page: 130 / 341

121
Function assignment of external
terminal and control
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4.10.7 Output current detection function
(Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167)
The output current during inverter running can be detected and output to the output terminal.
Parameter
Number
Name Initial Value
Setting
Range
Description
150
Output current detection
level
110%* 0 to 120%*
Set the output current detection level. 100% is the
rated inverter current.
151
Output current detection
signal delay time
0s 0 to 10s
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.
152 Zero current detection level 5% 0 to 150%
Set the zero current detection level. The rated
inverter current is assumed to be 100%.
153 Zero current detection time 0.5s 0 to 10s
Set the time period from when the output current
drops below the
Pr. 152 value until when the zero
current detection signal (Y13) 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
The Y12 signal on status is retained. The signal is
turned off at the next start.
167
Output current detection
operation selection
0
0
Y12 Signal - ON Y13 Signal - ON
Operation continued Operation continued
1
Fault stop (E.CDO) Operation continued
10 Operation continued Fault stop (E.CDO)
11 Fault stop (E.CDO) Fault stop (E.CDO)
The above parameters can be set when
Pr. 160 User group read selection
= "0".
(Refer to page 173)
* When Pr. 570 Multiple rating setting = "1", performing inverter reset and all parameter clear changes the initial value and setting
range. (Refer to page 75.)
(1) Output current detection (Y12 signal, 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" or "11", the inverter output is stopped
and the output current detection fault (E.CDO) is displayed when
the Y12 signal turns ON. When a fault 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". Setting
Pr. 167
= "1" or "11" at Y12 signal
ON does not cause E.CDO. Setting to Pr. 167 becomes effective
after Y12 is turned OFF.
˜
For the X12 signal, set "12 (positive logic)" or "112 (negative
logic)" in any of
Pr. 190 to Pr. 196 (output terminal function selection)
and assign the function to the output terminal.
Time
Pr. 150
OFF
ON
OFF
Output current
detection signal
(Y12)
Pr. 166
Minimum 0.1s
(initial value)
Output current
Pr. 166
9999,
Pr. 167
= 0
Pr. 151