Mitsubishi Electric MELSEC iQ-R Series User Manual page 31

Section 3 NAME AND FUNCTION OF EACH PART
3.4.4 Upper/lower limit alarm monitoring function
You can set an upper and lower limit alarm for maximum two points and implement a monitoring function for
them.
During the alarm monitoring, you can check the alarm occurrence by the input signal.
(1) Setting items of the upper/lower limit alarm monitoring
Setting items and setting range for the alarm monitoring are described below.
Items set in the
buffer memory
(Alarm 1 / Alarm 2)
Alarm monitoring
factor
(Un\G11 / Un\G21)
Alarm monitoring
value
(Un\G12,13
/ Un\G22,23)
Alarm reset method
(Un\G14 / Un\G24)
Alarm delay time
(Un\G15 / Un\G25)
* Each item of the alarm monitoring is stored in the nonvolatile memory, so that values can be retained even
when a power source reset.
Setting range
0: No monitoring
1: Current demand upper limit
2: Current demand lower limit
3: Voltage upper limit
4: Voltage lower limit
5: Power demand upper limit
6: Power demand lower limit
7: Power factor upper limit
8: Power factor lower limit
-2147483648 – 2147483647
[Unit]
Current demand
Voltage
Electric Power demand :×10
Power factor
0: Self-retention
1: Self-reset
0 – 300
[Unit] second
For respective alarm 1 and
alarm 2, set the monitoring item
either the upper / lower limit or
measuring factor.
The value to be monitored for
the alarm.
:×10 A according to the unit of the
-3
:×10 V measuring item that is set as an
-3
kW alarm monitoring factor.
-3
:×10 % (Double words)
-3
Set whether or not the alarm-
occurrence condition should be
retained if the value goes below
the upper limit alarm value or
goes over the lower limit alarm
value after the upper/lower limit
alarm occurred.
Only when the state that it
exceeds the upper limit alarm
monitoring value or it goes
below the lower limit alarm
monitoring value continues for
the period of alarm delay time,
it is considered as an alarm
occurrence.
30
RE81WH
Description
Set the value