Description Of The Starter Control Unit; Location; Function; History - Eaton Holec Clink II User Manual

CLINK II SCU MANAGER
2

DESCRIPTION OF THE STARTER CONTROL UNIT

2.1

Location

The SCUs are accommodated in the vertical cable-entry compartment of the Capitole cubicle. In this way they
are fully separated from the primary motor starter circuits. Up to 16 Starter Control Units can be mounted, one
on top of the other, in a common withdrawable cassette. The pitch is identical to that of the adjacent switchgear
compartment so that each SCU is in line with its own motor starter tray.
2.2

Function

The SCU fully autonomously, monitors and protects the allocated motor. In addition, it controls the motor starter
in accordance with the DCS commands and sends all actual motor data to the higher control system (for
example PLC). For a detailed description of SCU functions see chapter 5 on page 15.
2.3

History

In 2003 the FCU of the Clink II system is enhanced with new functions: the automatic restart function and the
earth leakage function. For more details see the Clink II FCU Manual version 4.0 and higher. As a consequence
for the SCU the analog input channel is no longer present.The description of this analog input has been
removed from this manual.
2.4

Design and layout

See figure 1 for the location of the main components.
description of the starter control unit
F S
Jumper SCU/FCU
MODULE
NETWORK A
NETWORK B
RS 232
Figure 1: Layout of the SCU main board
H
Jumper Earth
Leakage Range
H = 0.3 - 6 A.
L = 0.03 - 0.6 A
ELCO's
version 5.0
L
X1
10