Schneider Electric Splitter Boxes Technické informace stáhnout pdf (Strana 232)

CANopen TeSys U Motor Control Devices

232

31006709 2/2009

The Multifunction Control Unit

The LUCMT1BL Multifunction Control Unit controls, protects and monitors the

LUTM bases (see page 230) and performs the following functions:

Protection

 against overcurrent

 against thermal overloads, with choice of trip classes from 5 to 30

 against ground faults

 against phase imbalances

 against mechanical jams during or after the start-up phase

 against idling

 against tripping of the starter via an external signal (as an option)

Warning

The LUCMT Multifunction Control Unit includes a warning associated with each of

the above listed protection functions. The warning level can be configured and is

independent from the protection trip level.

Diagnostic

Records and displays:

 number of operating hours for the motor

 number of starts

 number of trips

 cause of each trip

For the last five trips, the multifunction control unit records the status of the motor-

starter at the time of the trip (value of currents, thermal status, and trip type).

When it is used with a short-circuit device and a contactor, as shown above, the

TeSys U C Mu L controller creates a motor starter that provides:

 overload protection

 motor-starter control

 application monitoring

Conditions of Use

Irrespective of the nominal current value of the motor it is supposed to control, the

TeSys U C Mu L controller is always used with an external current transformer

whose:

 Secondary is at 1A nominal.

 Primary is selected according to the motor’s nominal current.

NOTE: In an installation containing TeSys U starter-controllers and TeSys U

controllers, motor management is identical from the point-of-view of the PLC.

1 2 ... 227 228 229 230 231 232 233 234 235 236 237 ... 315 316

Žádné komentáře

Schneider Electric Splitter Boxes Technické informace Strana 232