NIVELCO UNICONT PMG-500, User And Programming Manual, Page: 26 / 41

26 pmg511en21p01
PV[[
Absolute value
upper limit
alarm
OFF ON
PV
90 °C
SV
100 °C
H
Absolute value of alarm:
set to 90 °C
OFF ON
SV
100 °C
PV
110 °C
H
Absolute value of alarm:
set to 110 °C
If the PV is higher than the
absolute value, the output
will turn on.
The absolute value alarm
can be set in AL1H.
]]PV
Absolute value
lower limit
alarm
ON OFF
PV
90 °C
SV
100 °C
H
Absolute value of alarm:
set to 90 °C
ON OFF
SV
100 °C
PV
110 °C
H
Absolute value of alarm:
set to 110 °C
If the PV is lower than the
absolute value, the output
will turn on.
The absolute value of the
alarm can be set in the
AL1L.
LBA
Loop break
alarm
–
Turns on when it detects a
loop break.
SBA
Sensor error
alarm
–
It turns on when the
connection to the sensor
is lost.
HBA
Heating error
alarm
–
It turns on when the CT
detects a break in the
heater.
5.7.2 Alarm Output Settings [PAR4 → AL1T]
Users can select alarm output settings. Default setting: AL-A
Setting Mode Description
AL-A
Standard
alarm
If there is an alarm condition, the alarm output is ON. If there is no alarm
condition, the alarm output is OFF.
AL-B Alarm latch If an alarm condition exists, the alarm output is ON and remains ON.
AL-C
Standby sequ -
ence 1
The first alarm condition is ignored, and the second alarm condition operates in
normal alarm mode.
If there is power supplied and there is an alarm condition, the first alarm condition
is ignored and the standard alarm operates from the second alarm condition.
AL-D
Alarm latch
and standby
sequence 1
If there is an alarm condition, it activates the alarm latch and the standby
sequence. If there is power and there is an alarm condition, the first alarm
condition is ignored and the alarm latch operates from the second alarm condition.
AL-E
Standby sequ -
ence 2
The first alarm condition is ignored, and the second alarm condition is the normal
alarm. When the standby sequence is re-applied and an alarm condition occurs,
the alarm output will not turn on. After clearing the alarm condition, the standard
alarm will operate.
AL-F
Alarm latch
and standby
sequence 2
The basic operation is the same as the alarm latch and the 1st standby sequence.
Not only does it work by turning on / off, but also changing the alarm setting value
or alarm option. Re-application of the standby sequence and if there is an alarm
condition, the alarm output will not turn on. After clearing the alarm condition, the
alarm latch will operate.
– Condition for re-use of Standby Sequence 1, Alarm Latch, and Standby Sequence Series 1: Power ON