User Manual

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Siemens Building Technologies SED2 Advanced Operator Panel AOP CM1B5192en
HVAC Products AOP Operating Modes 19.01.2004
6.2 Operating in Local Mode
On initial power-up or after a reset, the AOP defaults to the LOCAL operating mode. The LOCAL mode oper-
ates only with one SED2. You can change the operating mode via the MODE menu. You can control the SED2
VSD by accessing all normal SED2 and AOP internal parameters. See also 4.1 Single Drive Control Using the
AOP
6.2.1 Communications Failure
If communications between the AOP and a SED2 VSD fails, a warning screen displays.
Press
to acknowledge the warning condition.
If the failure condition occurs again, the AOP assumes it is not connected to the SED2 VSD and returns to the
main menu.
If the AOP fails to establish initial communications with a SED2 VSD, any attempt to select OPERATE from the
main menu results in an error warning screen.
Press
to acknowledge the warning condition and to return to the main menu.
6.2.2 Displaying Drive Status
The AOP can monitor the status of its associated SED2 VSD and motor. The screen displays the current activ-
ity of the SED2 VSD and motor, including any fault conditions.
6.2.3 Verifying Drive Type
The AOP can verify the type of its associated SED2 VSD. If the SED2 VSD type is incompatible with the AOP,
it inhibits operation and returns to the main menu.
6.3 Operating in Master Mode
In MASTER mode, the AOP can control up to 31 SED2 drives that connect in a multi-drop network arrange-
ment. Full operator control of each SED2 is possible with access to all normal SED2 parameters.
Control of the SED2 drives can be individually or by broadcast method.
6.3.1 Individual Control of SED2 VSD
To control a single unit in a SED2 VSD network:
1. Select MASTER mode from the main menu
2. In MASTER mode, select OPERATE
The AOP prompts you to select a. slave VSD
3. Use
and to select a slave SED2 VSD. A two-digit number on the left-hand side of the screen identi-
fies each SED2 VSD. In the top, left-hand corner of the screen, an icon indicates the current operating
status of the highlighted SED2 VSD. The following table describes the icons.