Safeway Bread Conveyor Controls
Safway Bread of Denver has added to
the loaf packaging line.
C H Systems, a Denver conveyor system
provider, selected Arapahoe Controls to
engineer and provide the controls package.
Drawing package is complete and sent out for bids!
Layout of the main control panel.
AB SLC 500 PLC with 5/05 processor.
8ea. AB PowerFlex4 drives.
Typical schematic page, this one shows the two motors that are driven by mag starters.
Electrical controls consist of a PLC, Pushbuttons,
and drive controls mounted in a NEMA 4
stainless steel panel.
The PLC will be an Allen Bradley SLC505,
with discrete IO to command the local drives.
The operator interface will
be an Allen Bradley PanelView 1000 with Ethernet.
Drives controls will be Allen Bradley PowerFlex 4
variable frequency drives. Speed setpoints will be via.
Machine safeguarding will be in compliance with IEC61496-1,
utilizing a circuit monitoring safety rated relay and E-stop
pushbutton stations at designated locations.
There is be minimal operator involvement
in this system. There will be line start/stop
switch stations in the field along with the
PanelView mounted in the door of the enclosure.
The layout of the PanelView is below, It shows
a dynamic indication of each conveyor status, along with
setpoint entry, and diagnostic information.