| Function |
Reg. |
Description |
| Override control |
2 |
The actuator can be operated in override control for commissioning / maintenance purposes or system-wide functions (e.g. night-cooling).
Manual override: When the gear disengagement is used to freely adjust the damper position, a mechanical jam will be detected if a mismatch between setpoint and actual position persists for more than 10s.
Remote override: The actuator enters this state when an override command is sent over the bus.
Open / Close (depends on opening direction)
Min / Max (depends on Min/Max settings)
|
| Adaptive positioning |
258 |
For air dampers where the opening range is smaller than the nominal opening range 0...90°, the feedback signal can be adapted to have the actual opening range represented as 0...100%.
Using adaptive positioning makes the actuator driving to its end positions at the first startup after activating the adaptive positioning.
To trigger the adaptation again after the first startup, either the command “CalibrateAdaption” (Write “1” into register no. 256 ), or the adaptive positioning can be turned off and on again.
|
| Backup mode |
513, 514, 515 |
In case the communication to the controller is lost, the device can be configured to go into a defined state.
Default setting mode is “keep last setpoint”, i.e. in case of communication loss, the device controls to the last received setpoint.
If the backup mode is enabled, it can be configured as follows:
go to a predefined backup position
|
| Restarting the device |
256 |
Restarting is possible by:
Power-reset (turning operating voltage off and on) or
by “ReInitDevice” command.
🡪 Device re-initializes and sets all process values to defaults. |
| Reset |
|
The actuator supports the following re-initialization / reset behaviour:
Local reset by push-button
Remote reset: Using “RemoteFactoryReset” command.
Effect of reset:
Process values: set to ex-works default values.
Application and actuator parameters are set to factory defaults,
Network parameters are reset only in case of local reset, not by remote reset (otherwise loss of communication).
Not reset are: Counters, status flags, device info, and factory data.
|
| Self test |
256 |
When triggered, the self test drives the actuator to the detected limits and sets the flags in register 769 according to the result (bit 09 = 1🡪”failed” or bit 10 = 1 🡪 “passed”).
The self test is not passed when the limits were not reached from the lower end (results in jam). If the Min/Max limits can be exceeded, the self test is not evaluated as failed. |