Safegate Group safedock, User Manual

Page: 173 / 348

SAFEDOCK®

Safegate Group
Manual Date: 6 February 2015
Chapter: 4 MAINTENANCE Version: 2.7
Page 39 of 52
Renewal of Control Unit with a CU Board Upgrade Kit
This information is a basic step by step guide for authorized personnel to replace a Control Unit (CU)
circuit board.
Safedock T1/2/3 (system design from Spring 2008) - CU circuit includes a docking board
(connections) and a carrier board (CPU).
Safedock T2/3
(SG590125-000/older system design to Spring 2008) - CU-circuit single board
(connection and CPU). Note : This design is now obsolete.

CU Board Upgrade Kit (SG590399-001-01) includes:
o
A docking board and a carrier board.
o
Extension plate, clamp and screw for some systems, if required.
Note
: The CU Board Upgrade Kit requires software version 8.0 or higher.
Before you start
(a) If possible, use the Safedock Maintenance program (SMT) to save the configuration file.
Note : For more information, see the Chapter 4A Stand Configuration Utility.
WARNING : DANGER OF ELECTRIC SHOCK!
(b) ISOLATE THE POWER SUPPLY PRIOR TO UNDERTAKING ANY MAINTENANCE!
(c) IF A BATTERY BACKUP IS INSTALLED, THE DC CURRENT TO ELECTRONICS MUST ALSO
BE SWTICHED OFF.
Note : Standard tools are required such as screwdrivers and Allen keys.
Removal
Image examples
CU-circuit board (SG590125-000)
(a) Open the Safedock Pilot Display cabinet and set the
Safedock power switch to OFF .
(b) Locate the protective cover for the CU-circuit board
assembly and remove it.
(c) Disconnect all wiring from the CU-circuit board.
(d) Undo the clamp fasteners holding the stepper motor
driver cards in place.
Note : If a welded stud is used as the clamp fastener,
carefully twist the stud to break it off.
(e) Remove the stepper motor driver cards by pulling
them upwards from the CU-circuit board.
(f) Remove the CU-circuit board by removing the six
fasteners holding it in place on the stand-offs.
Note : Be careful not to loosen the stand-offs, as it
can be difficult to re-tighten them without loosening
the mounting plate.
(g) Return the (old) board to Safegate.
FIGURE 4.47
– CU REMOVAL
(a)
(b)
(d)
(c)