Siemens SED2 사용자 설명서

 

Siemens Building Technologies, Inc. 

 

21 

In master mode, the network controls the SED2 VFDs either individually or by broadcast 
operation. A broadcast operation can simultaneously start or stop all networked SED2 VFDs.  

While in broadcast operation, note the following AOP functions:  

• 

Since parameters can not be edited globally, 

 does not function in a broadcast operation. 

• 

 and 

 still function in a broadcast operation. For example, it would be possible to change 

the speed of a motor simultaneously across all networked SED2 VFDs.  

• 

If a ‘Communications Failure’ displays, the screen also indicates which slave SED2 VFD is 
not working correctly. Press 

 to acknowledge the warning condition.  

 
If the warning condition occurs again, the AOP assumes it is not connected to the SED2 VFD 
and returns you to the main menu.  

If communications between the AOP and a SED2 VFD fails, a warning screen displays. Press 

 

to acknowledge the warning condition. If the warning condition occurs again, the AOP assumes it 
is not connected to the SED2 VFD and returns you to the main menu.  

If the AOP fails to establish initial communications with a SED2 VFD, any attempt to select 
Operate from the main menu results in an warning screen. Press 

 to acknowledge the warning 

condition and to return to the main menu.  

The AOP can monitor the status of its associated SED2 VFD and motor. The screen displays the 
current activity of the SED2 VFD and motor, including any fault conditions.  

The AOP can verify the type of its associated SED2 VFD. If the SED2 VFD type is incompatible 
with the AOP, it inhibits operation and returns to the main menu.