Mitsubishi Electric MELSEC iQ-R Series User Manual page 47

Energy measuring module
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Section 4 I/O SIGNALS TO CPU MODULE
(9)
Operating condition setting completion flag (Xn9)
When turning Operating condition setting request (Yn9) to ON and changing the following settings, this signal
(Xn9) turns ON.
・Phase wire system (Un\G0)
・Primary voltage (Un\G1)
・Primary current (Un\G2)
・Current demand time (Un\G3)
・Electric power demand time (Un\G4)
・Primary voltage of VT (Un\G5)
・Secondary voltage of VT (Un\G6)
・Primary current of CT (Un\G7)
・Alarm 1 monitoring factor (Un\G11)
・Alarm 1 monitoring value (Un\G12, 13)
・Alarm 1 reset method (Un\G14)
・Alarm 1 delay time (Un\G15)
・Alarm 2 monitoring factor (Un\G21)
・Alarm 2 monitoring value (Un\G22, 23)
・Alarm 2 reset method (Un\G24)
・Alarm 2 delay time (Un\G25)
・Period of measured data acquisition clock (Un\G60, 61)
When operating condition setting request (Yn9) is OFF, this signal (Xn9) turns OFF.
(10) Alarm 1 flag (XnA)
If the measured value of the alarm 1 monitoring factor (Un\G11) exceeds the upper limit (in the case of the
lower alarm, it goes under the lower limit), and if the situation continues and passes the alarm 1 delay time
(Un\G15), then this signal (XnA) turns ON.
Operations after this signal (XnA) is turned ON are different depending on the setting of the alarm 1 reset
method (Un\G14).
(a) When the alarm 1 reset method (Un\G14) is "0: Self-retention"
If the measured value of the alarm 1 monitoring target becomes below the upper limit (in the case of lower
limit alarm, it exceeds the lower limit), then this signal (XnA) retains ON.
When the alarm 1 reset request (YnA) is set to ON, this signal (XnA) turns OFF.
(b) When the alarm 1 reset method (Un\G14) is "1: Self-reset"
Even if the measured value of the alarm 1 monitoring target becomes below the upper limit (in the case
of lower limit alarm, it exceeds the lower limit), this signal (XnA) turns OFF.
When the measured value of the alarm 1 monitoring target is set to "not monitoring", this signal (XnA) turns
OFF.
* For the actual behavior of alarm monitoring, refer to "3.4.4".
(11) Alarm 2 flag (XnB)
The usage procedure is the same as Alarm 1 flag (XnA).
Refer to (10).
46
RE81WH

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