Operating Modes
User can configure the motor control source for four operating modes:
-
Local 1 (L1)
-
Local 2 (L2)
-
Local 3 (L3)
-
Remote (R)
TeSys Tera system allows motor Start or Stop commands from the following control sources:
-
HMI: Start or Stop commands from the LTMTCUF control operator unit or TeSys Tera DTM.
-
Local DI (L-Start/L-Stop): Start or Stop commands from a local control panel near to the motor, connected to TeSys Tera digital inputs.
-
Remote DI (R-Start/R-Stop): Start or Stop commands from a remote control panel, connected to TeSys Tera digital inputs.
-
Communication: Start or Stop commands from a PLC or DCS via the communication network.
-
Custom: Start or Stop commands from the custom logic.
The following table shows an example of selection of motor control source for different operating modes. In this example, the motor can be started and stopped:
-
In Local 1 operating mode from local DI and HMI.
-
In Local 2 operating mode from local DI.
-
In Local 3 operating mode from local DI and HMI.
-
In Remote operating mode from remote DI and communication.
|
Motor control |
Operating modes |
Motor control source |
||||
|
HMI |
Local DI |
Remote DI |
Communication |
Custom |
||
|
Start |
Local 1 |
✔ |
✔ |
x |
x |
x |
|
Local 2 |
x |
✔ |
x |
x |
x |
|
|
Local 3 |
✔ |
✔ |
x |
x |
x |
|
|
Remote |
x |
x |
✔ |
✔ |
x |
|
|
Stop |
Local 1 |
✔ |
✔ |
x |
x |
x |
|
Local 2 |
x |
✔ |
x |
x |
x |
|
|
Local 3 |
✔ |
✔ |
x |
x |
x |
|
|
Remote |
x |
x |
✔ |
✔ |
x |
|
Operating Mode Selection
Only one operating mode is activated at a time.
The active operating mode can be selected through HMI, digital inputs or communication, based on the mode selection setting.
Operating Mode Selection Through HMI
If the mode selection setting is HMI, then the selection of Local 1, Local 2, Local 3 and Remote operating mode can be done from LTMTCUF control operator unit. You can select the required operating mode from the control unit by pressing the Local/Remote key while the Home screen is displayed. Once the operating mode is selected from the control unit, the mode will remain the same until the user changes it to other mode.
Operating Mode Selection Through Digital Inputs
If the mode selection setting is DI, then the operating mode is selected through the digital inputs assigned to Mode Selection 1 and/or Mode Selection 2. You can configure minimum one DI in DI setting using the TeSys Tera DTM.
The following mode selection combinations are possible through DI:
-
Only one DI is assigned to Mode Selection 1 in DI settings:
Operating mode
Mode Selection 1 DI
Local 1
OFF
Remote
ON
-
Only one DI is assigned to Mode Selection 2 in DI settings:
Operating mode
Mode Selection 2 DI
Local 1
OFF
Local 2
ON
-
Two DI are assigned to Mode Selection 1 and Mode Selection 2 in DI settings:
Operating mode
Mode Selection 1 DI
Mode Selection 2 DI
Local 1
OFF
OFF
Remote
ON
OFF
Local 2
OFF
ON
Local 3
ON
ON
Operating Mode Selection Through Communication
If the mode selection setting is Communication, then the operating mode is selected by setting the Operating mode selection bits accordingly. For more information, refer to the appropriate TeSys Tera communication guide .
|
Operating mode |
Mode Selection 1 Bit |
Mode Selection 2 Bit |
|
Local 1 |
0 |
0 |
|
Remote |
1 |
0 |
|
Local 2 |
0 |
1 |
|
Local 3 |
1 |
1 |