Digital Outputs

WARNING
UNINTENDED MACHINE OPERATION Change in DO settings can cause short circuit or turn on power supply to the load. Check if appropriate wiring is done according to the DO settings. Ensure that the three-phase power supply is cut off while changing the DO settings. Failure to follow these instructions can result in death, serious injury, or equipment damage.

The TeSys Tera system supports maximum of 13 digital outputs:

Three digital outputs on LTMT main units.
Up to 10 digital outputs with LTMT expansion units.

Output Configuration

The configuration of the digital outputs can be made through one of the following interfaces:

A PC running the TeSys Tera DTM embedded in a FDT container such as SoMove software.
The LTMTCUF control operator unit.
A PLC or DCS through the communication network.

Each digital output has the following parameters:

Parameter	Setting range
Active type	Active high Active low
Output type	Level Pulse
Pulse time	0 to 60000 ms in step of 1 ms
Input source	See list in input source

The digital outputs are set by default depending on the motor starter type selected.

Output Type

The Active type, Output type, and Pulse time (t) parameters defines how the output information (A) is processed by the LTMT main unit and is converted in the physical information transmitted by the relay output (B).

Active High Level Outputs

Active Low Level Outputs

Active High Pulse Outputs

Active Low Pulse Outputs

DO Input Source

The most used input sources are indicated in the following table:

Index	Input source
232	Pickup status
233	Alarm status
234	Trip status
235	Motor stop error detection
504	CONTACTOR OUTPUT 1
505	CONTACTOR OUTPUT 2
506	CONTACTOR OUTPUT 3
507	CONTACTOR OUTPUT 4
508	CONTACTOR OUTPUT 5

Refer to Input Source in Appendices for the complete list of input source.