Spirax Sarco SP8-10, Installation And Maintenance Instructions Manual

Page: 68 / 88

IM-P707-01 CTLS Issue 1
68
SP8-10 Smart positioner
5.1.27 Menu: Analogue feedback
Menu/parameter Value range Description
Analogue Out Min. 4.0 to 18.4 mA
Use this parameter to specify the lower current range
limit for the Analogue feedback. The current range
corresponds to the configured stroke range.
Note:
The current range limits can be freely configured
between 4 and 18.5 mA. However, the current range
must not be smaller than 10 % (1.6 mA).
Analogue Out Max. 5.6 to 20.0 mA
Use this parameter to specify the upper current range
limit for the Analogue feedback. The current range
corresponds to the configured stroke range.
Note:
The current range limits can be freely configured
between 4 and 20 mA. However, the current range
must not be smaller than 10 % (1.6 mA).
Feedbk. Charact. Direct, Reverse
Use this parameter to specify the characteristic curve
for the Analogue feedback.
-
Direct (rising) = Position 0 to 100 % = Signal 4 to
20 mA
-
Reverse (falling) = Position 0 to 100 % = Signal 20
to 4 mA
AO Alarm Mask
Alarm Maintenan.
Alarm OoSpec.
Alarm Check Fct.
Alarm Failure
When a general alarm is issued, an alarm current can
be sent via the Analogue position feedback. These
alarm groups are defined in accordance with Namur
NE107.
A high alarm current ( ‘High’ i >21 mA), low alarm
current (‘Low’ I < 3.6 mA, or ‘Off’ can be set for each
individual group.
AO Simulation
Off
Low
High
Input current
HW Alarm Current
The Analogue position feedback function is simulated
in this parameter group.
-
Off - Terminate simulation.
-
Reverse - Alarm current I < 3.6 mA
-
High - Alarm current I > 21 mA
-
Input current - The input current of the positioner
is output.
-
HW Alarm Current - The ‘AO Alarm Current’ set in
‘Service Mode’ is output.