Data Sheet for Product

9
Siemens A6V12057657_en--_a
Smart Infrastructure 2021-03-05
Function description
Register 1/3 "Setpoint/actual value"
The controller setoint for the position to move to, 0...100% stroke/angle of rotation, scaling
0.01, i.e. 0% = 0 and 100% = 10000.
The actual value reported by the device, with the same scaling.
Register 2 "Override control"
The actuator can be operated in override control for commissioning / maintenance purposes
or systemwide functions (e.g. night cooling).
● Manual override: When the manual adjuster (if present) is used, a mechanical jam will be
detected if a mismatch between setpoint and actual position persists for longer than 10 s.
● Remote override: The actuator enters this state when an override command is sent over
the bus.
● Available commands:
– Extend / Retract
– Stop (with braking distance compensation)
Register 256 "Restarting the device"
A restart is possible by:
● resetting the power (turning operating voltage off and on)
● sending “Reinitialize” command.
⇒ Actuator restarts and sets all process values except actual value (= 50%) and setpoint
(= startup setpoint)to factory settings.
Register 256 "Self-test"
The self-test drives the actuator to the limits and sets the status values in register 769 (bit 09
/ bit 10) according to the result.
The self-test fails, if the limits were not reached from the lower end (equates to a jam).
Exceeding the min/max values does not fail the self-test.
The self-test can only be performed, if bit 04 = 0 in register 769 “Status”. Meaning there is
currently no blockage or manual operation.
Register 256 "Reset"
The actuator supports the following reset/reinitializing behavior:
● Local reset by pushbutton
● Reset by bus using “Remote-Reset” command
Effect of reset:
● Process values except actual value and setpoint are reset to factory settings.
● Network parameters (register 513...516 and 764...768) are reset only in case of a local
reset. If reset is done by bus, network parameters are retained, as otherwise
communication would be lost.
● Counters, device info and factory data are not reset.
Register 259 "Operating mode"
Read value only; set to “Position control” for valve actuators.
Register 260/261 "Minimum and maximum position"
Electronic positioning limitation