Description Of System Components; Basic Units (Bu) - Siemens SIMOCODE pro System Manual

Motor management and control devices

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Description of system components

The basic units are the fundamental components of the SIMOCODE pro

system. Basic units are always necessary when using SIMOCODE pro.

They have a standard enclosure width of 45 mm and are equipped with

detachable terminals:

Basic unit 1 (BU1)

SIMOCODE pro C device series

Fig. 1-6: Basic units

Basic units can be installed on a standard mounting rail or fixed to a

mounting plate (with additional push-in lugs).

Basic units are available in two versions for the following supply voltages:

• 24 V DC or

• 110 to 240 V AC/DC.

Basic unit 1 (BU1)

Basic unit 1 is the fundamental component of the SIMOCODE pro C device

series and is used in combination with a current measuring module and

optional operator panels. The following motor control functions are

• Overload relay

• Direct starters and reversing starters

• Circuit breaker control (MCCB).

LEDs for device diagnostics (Device, Bus, Gen.Fault):

These LEDs on the front of the device are used for device and fault

diagnostics, and indicate the basic status

• Of the device itself via the Device LED

• About PROFIBUS communication via the Bus LED

• About any motor feeder faults via the Gen. Fault LED

For more information see

SIMOCODE pro

GWA 4NEB 631 6050-22 DS 03

Basic unit 2 (BU2)

SIMOCODE pro V device series

System description