Magnum Venus Plastech Megaject RTM Pro Revison 7_0 User Manual
Page 57
Megaject RTM Pro Manual – Revision 7.00 – 13
th
APRIL 2006
6.10. Progressive Catalyst Ratio (PCR) System
It should be ensured that the stepper motor assemblies used to position the catalyst
pump on the ratio arms are regularly maintained. All bolts should be correctly
tightened, with particular care that coupling between the motor shaft and catalyst
drive is tight. Failure to ensure this could result in slippage and misalignment of the
catalyst pump.
It should be noted that the top and bottom motors communicate with the PLC via an
RS485 bus, and have each been given a different addresses. Therefore, the motors can
not be interchanged. The top motor is has the address 1, while the bottom motor has
the address 2.
Motors can be supplied already addressed, or the address of the motor can set on site.
This must be done using specialised software running on a Laptop. Please contact
Plastech for further information.
A dedicated screen is provided on the machine to trouble shoot motor faults. Please
refer to section 6.11.1 for more information.
6.11. Maintenance screens
The machine has a number of screens which can be used to aid fault finding and
maintenance procedures. All of these screens can be accessed from the configuration
and maintenance screen, which can be selected by pressing the CONFIGURATION
& MAINTENANCE button on the main menu screen.
6.11.1. Motor configuration screen
The motor configuration screen, shown in Figure 6.11.1, should only be used with
caution. It is possible to damage or reconfigure the motors to prevent them working
with the system from this screen, if the CMD buttons are used incorrectly. It is
therefore recommended that the CMD buttons are only used by Plastech employees or
under guidance from a Plastech representative. If a CMD button is press accidentally
then simply cancel the pop up string entry dialogue, without pressing the enter key.
Figure 6.11.1 – Motors configuration screen