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GROUP “
]
AL3” (PARAMETERS RELATIVE TO ALARM AL3):
They permit to program the functioning of the process alarm AL3.
OAL3
- OUTPUT WHERE ALARM AL3 IS ADDRESSED: It defines on which output the alarm AL3 has to be addressed.
AL3t
- ALARM AL3 TYPE: Similar to “AL1t” but referred to alarm AL3.
Ab3
- ALARM AL3 FUNCTIONING: Similar to “Ab1t” but referred to alarm AL3
.
AL3
- ALARM AL3 THRESHOLD : Similar to “AL1” but referred to alarm AL3
.
AL3L
- LOW THRESHOLD BAND ALARM AL3 : Similar to “AL1L” but referred to alarm AL3
.
AL3H
- HIGH THRESHOLD BAND ALARM AL3 : Similar to “AL1H” but referred to alarm AL3.
HAL3 -
ALARM AL3 HYSTERESIS: Similar to “HAL1” but referred to alarm AL3.
AL3d
- ACTIVATION DELAY OF ALARM AL3: Similar to “AL1d” but referred to alarm AL3.
AL3i
- ALARM AL3 ACTIVATION IN CASE OF MEASURING ERROR: Similar to “AL1i” but referred to alarm AL3.
GROUP “LbA” (PARAMETERS RELATIVE TO THE LOOP BREAK ALARM):
It contains the parameters relative to the Loop Break alarm (control loop interruption), which intervenes when, for any
reason (short-circuit of a thermocouple, load interruption, etc) the control loop is interrupted.
OLbA
– OUTPUT WHERE THE LOOP BREAK ALARM IS ADDRESSED: It defines on which output the LOOP BREAK alarm
has to be addressed.
LbAt
– TIME NECESSARY TO ACTIVATE THE LOOP BREAK ALARM : Delay time at the intervention of the Loop Break alarm.
The alarm intervenes when the output power remains at the 100% for the time programmed on this parameter (in sec.)
GROUP “
]
Hb” (PARAMETERS RELATIVE TO THE HEATER BREAK ALARM):
It contains the parameters relative to the Heater Break alarm (heating element breakage).
This function is present only when the instrument is equipped with the input (TAHB) to measure the current absorbed by
the load. This input accepts signals coming from current transformers (TA) with output higher than 50 mA.
OHb
– OUTPUT WHERE HEATER BREAK ALARM IS ADDRESSED: It defines on which output the HEATER BREAK alarm has
to be addressed.
IFS
– HIGH SCALE LIMIT FOR INPUT TA HB: Value that the instrument has to visualise when as input TA HB It’s present a
value of 50 mA.
HbF
– ALARM HB FUNCTION: It defines the functioning of the Heater Break alarm as:
= 1 : The alarm is active when, with output 1rEG active, the current measured by the input TAHB is lower than the value
programmed on par. "IHbL" .
= 2 : The alarm is active when, with output 1rEG not active, the current measured by the input TAHB is higher than the value
programmed on par. "IHbH" .
= 3 : The alarm is active when, with output 1rEG active, the current measured by the input TAHB is lower than the value
programmed on par. "IHbL" or with output 1rEG not active, the current measured by the input TAHB is higher than the value
programmed on par. "IHbH".
= 4 : The alarm is active when the current measured by the input TAHB is lower than the value programmed on par. "IHbL"
or
the measured current is higher than the value programmed on par. "IHbH", independently by the state of the output 1rEG.
IHbL
– LOW ALARM HB THRESHOLD: Do program the value of the current normally absorbed by the load driven by the output
1reG, when this is active.
IHbH
– HIGH ALARM HB THRESHOLD: Do program the value of the current normally absorbed by the load driven by the
output 1reG, when this is not active.
