Fuji Electric Micro-controller X Series - Hysteresis Alarm 1, 2 and 3

59
,
, Hysteresis of alarm 1, 2 and 3 (Setting range: 0 to 50% FS)
[Description]
• The alarm is detected in the two-position operation (ON/
OFF). The hysteresis means the difference between the
input at ON and the input at OFF. For example, the hys-
teresis of 5°C means that the range between ON and OFF
is 5°C.
•As to the decimal point position, the setting at is
respected.
Input
AH
ON
OFF
Input
AL
ON
OFF
5˚C
5˚C
AL
ON
OFF
AH
OFF
5˚C
5˚C
• Upper limit alarm
• Lower limit alarm
• Range alarm
AL1
A1hy
• ALM1
• ALM2
AL2
A2hy
• ALM3
AL3
A3hy
[Setting example] Changing the hysteresis of alarm 2 from 1°C to 3°C
Press and hold the
SEL
key for five seconds.
will be displayed on the PV display.
Press the key to display
.
Press the
SEL
key once.
The current setting ( ) flashes on the SV.
Press the or keys to display .
Press the
SEL
key once. will stop flashing and will be registered for . After that, the
controller will operate with the hysteresis of alarm 2 being 3°C.
If you want to display the operation status, press and hold the
SEL
key for two seconds.
Operating procedureDisplay
1.
2.
3.
4.
5.
6.
• Hysteresis can be set for each alarm.
(Option)