Siemens Acvatix SAX Series User Manual

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Siemens Actuators SAX.., SAY.., SAV.., SAL.. for valves CE1P4040en
Building Technologies Functions and control 2018-12-05
4.13.4 Manual adjustment
The actuator’s internal stroke position measurement is inactive during manual
adjustment.
The position feedback changes to 0% once the manual adjuster is pressed and
remains on the value during manual adjustment. The actuator detects manual
action based on the deviation between the setpoint and the stroke position and
after 10 seconds reports in register 769 with the warning “Mechanical error, device
blocked, manual intervention or calibration”. The actuator LED blinks green, the
cable adapter LED is red.
Upon return to automatic mode, the actuator synchronizes to stroke position 0%.
After the synchronization, the actuator follows the pending setpoint, the actuator
LED changes to continuous green and the cable adapter LED blinks green
(communication active). The warning in register 769 is reset.
4.13.5 Parameters and function description
Reg. Name R/W Unit Scaling Range / listing
Process values
1 Setpoint RW % 0.01 0…100
2 Forced control RW -- -- 0 = Off / 1 = Extend / 2 = Retract
3 = Stop
3 Actual value R % 0.01 0…100
256 Command RW -- 0 = Ready or calibration in progress /
1 = Not available / 2 = Self test
3 = Reinitialize / 4 = Remote reset
Parameters
259 Op mode R -- -- 1 = POS
260 MinPosition R % 0.01 0…100
261 MaxPosition R % 0.01 0…100
262 Actuator runtime R s 1 30
263 Positioning signal
characteristic
between Y and U
R -- -- 0 = Linear (e.g. SAX61../MO + V_G41)
1 = Logarithmic (e.g. SAS61../MO + V_G44)
264 Tolerance blockade
monitoring
R % 0.01 4
513 Backup mode RW -- -- 0 = Move to backup position
1 = Maintain last position / 2 = Disable
514 Backup position RW % 0.01 0…100
515 Backup timeout RW s 1 60...900
516 Startup setpoint RW % 0.01 0…100
764 Modbus address RW -- -- 1…248 / 255 = “unassigned”
765 Baud rate RW -- -- 0 = auto / 1 = 9600 / 2 = 19200 3 = 38400
4 = 57600 / 5 = 76800 / 6 = 115200
766 Transmission
format
RW -- -- 0 = 1-8-E-1 / 1 = 1-8-O-1 / 2 = 1-8-N-1 / 3 = 1-8-N-2
767 Bus termination RW -- -- 0 = Off / 1 = On
120 Ω electronically switchable
768 Bus config.
command
RW -- -- 0 = Ready / 1 = Load / 2 = Reject
769 Status R
-- --
See Section, Register 769 “Status”

Siemens Acvatix SAX Series Specifications

General

Brand	Siemens
Model	Acvatix SAX Series
Category	Controller
Language	English