Siemens Acvatix SAS Series Basic Documentation page 22

Electrically
SA..61..
General notes on
calibration
Connection terminals
6 V
Y
13.6 mA
5 V
Y
12 mA
Z connected G
Z connected to G0
Only SAS61.33, SAS61.33U,
SAS61.53, SAT61.51
No voltage at G and G0
1)
(fail safe function triggers)
SA..31.. and SA..81..
Connection terminals
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· If the actuator is forced to travel beyond its end positions, overload protection
responds.
· Observe information given in chapter 4.2.1 Positioning signal and flow
characteristic selection, page 31.
Before making the function check, the following preconditions must be satisfied:
· "Environmental conditions" specified in chapter "Technical data" (page 45).
· Actuator is mechanically connected to a Siemens valve.
· Actuator is in "Automatic" mode (page 42).
· Actuator and, if required, accessories are correctly fitted and connected. Also
refer to chapter
·
· Connection terminals" (page 48) .
· Power is applied.
Calibration is required with modulating actuators and SA..61.. before the function
check.
Before making the calibration, the following preconditions must be satisfied:
· A description of the calibration function is given in chapter 4.2.3 Calibration
(page 32).
· Housing cover is removed (see "Special notes on mounting", page 16).
1
Bridge contact
If required, calibration can be repeated any number of times.
Make the function check for modulating actuators after the calibration with a point
test according to the following table:
Stroke actuator
2)
log lin
Actuator's stem Actuator's stem
extends (30%) extends (60%)
Actuator's stem Antriebsstössel
extends (23%) fährt ein (50%)
Actuator's stem extends
Actuator's stem retracts
Actuator's stem retracts (until the
end position is reached)
1)
Closing action is always completed first, also when power returns.
2)
SAS61.. Factory setting log; SAT61.. factory setting lin
Make the function check for 3-position actuators according to the following table:
Stroke actuator
Actuators SAS.., SAT.. for valves
Handling
2
Check LED (page 43)
Control path
2)
valve AàAB
Opening Closing
Closing Opening
Opening Closing
Closing Opening
Schliesst Öffnet
Control path valve
Bypass Position feedback U
valveur
2)
log
BàAB
2.95 V
2.3 V
10 V
0 V
-
Bypass valve
CE1P4041en
2)
lin
6 V
5 V
10 V
0 V
-
2019-04-09