Display
Name & Description
Range
Display
condition
Default
value
(Refer
USER GUIDE
for detailed explanation).
DEV: The alarm is activated at an error on the main set point.
When alarm annunciator is ON, during alarm condition, visual annunciation is given by the
upper display altering between AL-NO and process temperature where NO is the alarm
number. The annunciator may be disabled by selecting function ANN as OFF.
O
Display is with fixed 1 resolution for TC/RTD and as per decimal point selected for analog
input.
•
ALARM MODES:
•
ALARM LATCH:
•
ALARM ANNUNCIATOR:
When Latch is ON, the alarm once activated remains activated even when the error is
removed. To deactivate the alarm, it has to be acknowledged by selecting AL-NO from the
front online options and pressing + .
When HOLD is ON, in any alarm mode, it prevents an alarm signal on power-up. The alarm is
enabled only if the process temperature is within the alarm range.
1. A-LO : Analog low scaling.
2. A-HI : Analog high scaling.
AlrM: Set2 can be programmed as alarm.
NonE: If set2 is not required it can be programmed as none.
PARAMETER EXPLANATIONS :
Fd: Set2 programmed in cooling mode.(output ON when above the setpoint).
•
HOLD ALARM:
•
SET 2 TYPE:
AbS: Absolute alarm is a self-existent alarm independent of the main set point.
3. S.ERR : Sensor error level.
•
SENSOR ERROR LEVEL :
rE: Set2 programmed in heating mode.(output ON when below the setpoint)
This parameter determines the analog retransmission output level in case of sensor failure.
For eg : In case of 4-20mA retransmission output, if the sensor error level is set to High, 20mA
will be available at the output at all times incase of input sensor failure.
In case of analog retransmission only the following parameters will be prompted:
•
SET 2 MODE:
NOTE:
In
HC mode
only the following parameter will be prompted :-
1. Set 2 value - this parameter will be prompted as db (dead band)
2. Proportional band - cool (Pb-C)
3. Cycle time - cool (cyc.t)
23
Main output
= Relay2
For Analog
output if
/
Programming.
