Specifications

22
TeSys_U is a starter that integrates sectioning, protection, overload, short circuit, and commutator functions.
The commutator (selector switch) allows TeSysU to be controlled, either by the PLC in Remote mode, or by stop
and start buttons in Local mode.
This lockable commutator has a 3rd position, which is Off. In this position the contactor is open and there is no
longer power to the spool.
Be careful, this Off mode cannot be considered to be a padlock function.
The starter can be controlled via the Run/Stop switch; the Run command is wired directly to the starter. In this
mode, the PLC is no longer in the circuit, which is important in the event of spurious signals and for mainte-
nance.
Notes: b
Indicator lights wired to the starter allow Run and Fault states to be displayed.
The status of switch (local / remote) is available on PLC.
It is not possible to use the coil pre-wiring accessories to perform a manual command.
TeSys U illustrated below can be connected to Advantys STB
Motor control
device wiring
diagrams
Direct on line
TeSys U
diagram
Remote
Run
Local
Running
Fault
TeSys U
3-Application design
Hardware design
This paragraph provides a wiring diagram for the following starters
Direct on line starting TeSys U b
Progressive starting with soft starters b
Starting at variable speed with variable speed drive (VSD) ATV61 b
The proposed diagram re-uses previously dened operation modes. They are an extract from the water treat-
ment application described in chapter 7. Overall diagrams for motors and pumps are available on the website of
Schneider Electric.