Safegate Group safedock, User Manual

Page: 168 / 348

SAFEDOCK®

Safegate Group
Manual Date: 6 February 2015
Chapter: 4 MAINTENANCE Version: 2.7
Page 34 of 52
6.4.6 Scan Test
A LASER SCAN ERROR may be caused by one of the following components: stepper
motor, stepper motor card, laser or CU card. The following steps may help to
diagnose which of the components is at fault:
(a) Move one of the mirrors gently by hand. When moving it the LED named LASER
SAFE should light up as an indication of that the stepper motor sensor is detecting
a movement. There should be some resistance when moving the mirror by hand.
If not, the Stepper Motor Driver is possibly broken. Swap the 2 Stepper Motor
Drivers to check if the problem moves to the other stepper motor.
(b) If the LED does not light up, then there is a problem with the cable between the
stepper motor and the CU board, or the stepper motor itself.
6.5 RENEWAL OF CONTROL UNIT
6.5.1 Preparations before Maintenance
Note : Stand set-up parameters, such as configuration data, calibration values and
aircraft data, are stored in a non-volatile memory of the control unit.
A DISK COPY OF THE STAND SET-UP PARAMETERS SHALL PREVIOUSLY
HAVE BEEN MADE AT THE SAFEDOCK INSTALLATION/SET-UP PHASE AT EACH
STAND.
THIS PROCEDURE HAS BEEN DONE FOR FACILITATING THE EXCHANGE OF
THE CONTROL UNIT IN CASE OF AN ERROR, AND FOR MAKING RESTORATION
OF SOFTWARE AND SET-UP PARAMETERS EASIER AFTER THE EXCHANGE
OF HARDWARE.
THE APPLICABLE STAND SET-UP FILE SHALL BE LOADED INTO THE
MAINTENANCE PC ACCORDING TO INSTRUCTIONS IN
CHAPTER 4A STAND
CONFIGURATION UTILITY.
6.5.2 Dumping Stand Set-Up Parameters from the Control Unit
If the stand parameter back-up file is not available, the procedure described in
Chapter 4A Stand Configuration Utility can be carried out to secure the Stand set-up
parameters, if possible.
(a) Connect the Maintenance PC, loaded with the Safedock Maintenance software,
called SMT.EXE, to the connector at the right side of the Operator Panel.
(b) Dumping the CU memory contents to the PC will be done automatically, as soon
communication between the CU and the PC is established. To make a disk copy,
use
the function “SAVE” in the Safedock Stand Configuration Dialogue Box. The
current configuration will be saved onto disk in the maintenance PC.
If a faulty Control Unit does not allow you to dump its memory contents, the set-up
and calibration procedure has to be done manually again as described in the Chapter
4A Stand Configuration Utility.