Super Systems 7EK 31080 - Manual (Page 24)

20
RUN TIME PARAMETERS
Push the FUNC pushbutton, the lower display will show
the code while the upper display will show the value or the
status (On or OFF) of the selected parameter.
By
s or t pushbutton it is possible to set the desired
value or the desired status.
Pushing the FUNC pushbutton, the instrument memorizes
the new value (or the new status) and goes to the next
parameter.
Some of the following parameter may be skipped
according to the instrument configuration.
Param. DESCRIPTION
SP Set point (in eng. units).
Range: from rL to rH.
SP is operative when the logic input is open.
Sñrt SMART status.
The On or OFF indication shows the current
status of the SMART function (enabled or
disabled respectively).
Set On to enable the SMART function.
Set OFF to disable the SMART function.
n.rSt Manual reset of the alarms.
This parameter is skipped if none of the alarms
have the manual reset function.
Set On and push FUNC to reset the alarms.
SP2 Set point 2 (in eng. units).
Range: from rL to rH.
SP2 is operative when the logic input is closed.
nnn Software key for parameter protection.
This parameter is skipped if P20 = 0 or 1
On = the instrument is in LOCK condition
OFF = the instrument is in UNLOCK condition
When it is desired to switch from LOCK to
UNLOCK condition, set a value equal to P20
parameter.
When it is desired to switch from UNLOCK to
LOCK condition, set a value different from P20
parameter.
AL1 Alarm 1 threshold
This parameter is available only if P 7 is equal
to 1, 2 or 3.
Ranges:
- Span limits for process alarm.
- From 0 to 500 units for band alarm.
- From -500 to 500 units for deviation
alarm.
HSA1 Alarm 1 hysteresis
This parameter is available only if P 7 is equal
to 1, 2 or 3.
Range: From 0.1% to 10.0% of the input span
or 1 LSD.
Note: If the hysteresis of a band alarm is larger
than the alarm band, the instrument will use an
hysteresis value equal to the programmed band
minus 1 digit.
AL2 Alarm 2 threshold
This parameter is available only if P 12 is equal
to 1, 2 or 3.
For other details see AL1 parameter.
HSA2 Alarm 2 hysteresis
This parameter is available only if P 12 is equal
to 1, 2 or 3.
For other details see HSA1 parameter.
AL3 Alarm 3 threshold
This parameter is available only if P 14 is equal
to 1, 2 or 3 and P16 = OPrt.
For range details see AL1 parameter.
HSA3 Alarm 3 hysteresis
This parameter is available only if P 14 is equal
to 1, 2 or 3 and P16 = OPrt.
For other details see HSA1 parameter.
Pb Proportional band
Range:
- From 1.0% to 100.0% of the input span
when P 7 is different from 4.
- From 1.5% to 100.0% of the input span
when P 7 is equal to 4.
When Pb parameter is set to 0, the control
action becomes ON/OFF.
Note: When device is working with SMART
algorithm the Pb value will be limited by P33
and P35 parameters (when P7 is different from
4) or P33 and P34 parameters (when P7 is
equal to 4)
31080-1-00.p65 3/24/00, 11:58 AM 20