4 Repair
4.5.1. Replacement of SMB unit
3HAC027151-001 Revision: B190
© Copyright 2006-2008 ABB. All rights reserved.
4.5 Frame and base
4.5.1. Replacement of SMB unit
Location of SMB unit
The SMB/BU unit (SMB = serial measurement board, BU = brakerelease unit) is located on
the left hand side of the frame as shown in the figure below.
The SMB unit and the BU unit are both located inside the SMB/BU box.
xx0600003052
Required equipment
A Attachment screws (4 pcs)
B SMB/BU unit
C Velcro strap
D Battery pack
E SMB/BU box
F Serial measurement unit (SMB), DSQC 633
G Brakerelease unit (BU), DSQC 563
H Push button guard
I Cover, push button guard
J Gasket (Foundry Plus)
Equipment, etc. Spare part no. Art. no. Note
Serial measurement
unit (SMB), DSQC
633
Part list on page
270
Standard toolkit - The content is defined in
section Special tools on page
266.
Circuit diagram See chapter Circuit diagram.
Continues on next page
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