6 Parameter Settings and Functions
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6.4.3 Alarm SV settings [PAR1 → AL!L/AL!H/AL@L/AL@H/AL#L/AL#H]
You can set alarm output activation values. According to the selected alarm operation,
configuration parameters [AL□.H/AL□.L] will be activated for each setting.
AL!L
Low limit value of alarm output 1. Reference value for determining
heater burnout.
AL!H High-limit value of alarm output 1.
AL@L
Low limit value of alarm output 2. Reference value for determining
heater burnout.
AL@H High-limit value of alarm output 2.
AL#L
Low limit value of alarm output 3. Reference value for determining
heater burnout.
AL#H
High-limit value of alarm output 3.
Parameter Setting range
Unit
PAR1
AL!H
(temperature) High/Low-limit
deviation: By individual input
specification -F. S . to F. S .
(temperature) Alarm absolute value:
By individual input specification within
displayed range.
(analog) High/Low-limit deviation:
~999 to 9999 Within -F.S . to F. S.
(analog) Alarm absolute value: By
individual input specification within
displayed range.
Temperature
:1550
Analog
:10)0
-
AL@H
AL#H
AL!L
AL@L
AL#L
Changing the alarm operation or options resets the settings to the highest or lowest values that
will not trigger output in the new mode.
6.4.4 Alarm output hysteresis [PAR4 → A!HY/A@HY/A#HY]
“6.4.1 Alarm operation [PAR4 → AL-1/AL-2/AL-3]. “H” from alarm operation represents the
alarm output hysteresis. It is used to set an interval between alarm outputs ON/OFF periods.
Hysteresis can be set for individual alarm outputs (Alarm 1 Hysteresis/Alarm2 Hysteresis).
A!HY
Sets the ON/OFF interval for alarm output 1.
A@HY
Sets the ON/OFF interval for alarm output 2.
A#HY
Sets the ON/OFF interval for alarm output 3.
Parameter Setting range
Unit
PAR4
A!HY
Temperature H, Analog: 001 to 100
Temperature L: 00)1 to 10)0
001
Temperature:
℃/℉,
Analog: Digit
A@HY
A#HY
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