Overload
Description
In Overload starter, only two digital output is required for motor RUN command (CONTACTOR OUTPUT 1 (DO1) and Trip status (DO3)).
Wiring Diagram
Example of wiring diagram of the TeSys Tera system in Overload starter:
Operating Principle
When Overload starter is selected, TeSys Tera system do not accept any start or stop command to control the motor. Start and stop has to be connected externally as shown in wiring diagram. In Overload mode, TeSys Tera system trips the motor on the occurrence of trip condition.
CONTACTOR OUTPUT 1 can be configured to any of the DO of TeSys Tera system. This enables the Maximum start per hour and the Anti-backspin timer functions in overload mode.
TeSys Tera system activates the CONTACTOR OUTPUT 1, if the motor is ready to start (that is no inhibit cause detected).
TeSys Tera system deactivates CONTACTOR OUTPUT 1, if any of the following motor stop cause is detected:
-
Trip detected
Combination of DO1 and DO3 will drive the motor.
DI/DO Default Assignment
When Overload starter type is selected, the default assignment and settings of digital inputs and digital outputs are as follows.
|
DI parameters |
DI1 settings |
DI2 settings |
DI3 settings |
DI4 settings |
|---|---|---|---|---|
|
Trigger type |
Active high |
Active high |
Active high |
Active high |
|
Input source |
None |
None |
None |
None |
|
Validation time |
10 ms |
10 ms |
10 ms |
10 ms |
|
DO parameters |
DO1 settings |
DO2 settings |
DO3 settings |
|---|---|---|---|
|
Active type |
Active high |
Active high |
Active low |
|
Input source |
CONTACTOR OUTPUT 1 |
None |
Trip status |
|
Tag |
Other |
Other |
Trip DO |
|
Output type |
Level |
Level |
Level |
|
Pulse time |
0 ms |
0 ms |
0 ms |