Mitsubishi Electric Melsec Q Series User Manual page 39

5 I/O signal to CPU module
(7) Operating condition setting completion flag (Xn9)
(a) 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)
- Primary voltage of VT (Un¥G5)
- Secondary voltage of VT (Un¥G6)
- Primary current of CT (Un¥G7)
- Current demand time (Un¥G3)
- Electric power demand time (Un¥G4)
- Alarm 1 item (Un¥G11)
- Alarm 1 value (Un¥G12, 13)
- Alarm 1 reset method (Un¥G14)
- Alarm 1 delay time (Un¥G15)
- Alarm 2 item (Un¥G21)
- Alarm 2 value (Un¥G22, 23)
- Alarm 2 reset method (Un¥G24)
- Alarm 2 delay time (Un¥G25)
- output period of data acquisition clock (Un¥G60,61)
(b) When Operating condition setting request (Yn9) is OFF, this signal (Xn9) turns OFF.
(8) Alarm 1 flag (XnA)
(a) If the measured value of the alarm 1 item (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.
(b) Operations after this signal (XnA) is turned ON are different depending on the setting of
the alarm 1 reset method (Un\G14).
[When the alarm 1 reset method (Un\G14) is "auto reset"]
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) turns OFF.
[When the alarm 1 reset method (Un\G14) is "self retention"]
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) retains
ON. Then, when Alarm 1 reset request (YnA) is turned to ON, this signal (XnA) turns OFF.
(c) 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 4.2.4.
(9) Alarm 2 flag (XnB)
The usage procedure is the same as Alarm 1 flag (XnA). Refer to (8).
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