Safegate Group safedock, User Manual

Page: 171 / 348

SAFEDOCK®

Safegate Group
Manual Date: 6 February 2015
Chapter: 4 MAINTENANCE Version: 2.7
Page 37 of 52
Renewal of Control Unit/Docking Board
This information is a basic step by step guide for authorized personnel to replace a Control Unit (CU)
Docking Board.
Safedock T1/2/3 (system design from Spring 2008) - CU circuit includes a docking board
(connections) and a carrier board (CPU).
Before you start
(a) If possible, use the Safedock Maintenance program (SMT) to 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
Docking board (SG590562-000)
(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 docking board.
(d) Undo the clamp fasteners holding the stepper motor
driver cards in place.
Remove the stepper motor driver cards by pulling
them away from the CU-circuit board.
(e) Remove the carrier board.
(f) Remove the docking 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 4.44
– CU PARTS