MAGUIRE LPD-30, Installation Operation & Maintenance

Page: 79 / 127

Maguire Products, Inc.
Edition: November 5, 2010
79
LPD Dryer
®
Outputs:
Air solenoid bank (located left of control panel):
Location Color Activated by: What it does: Visual
1 White Position 1 Pulls the canisters into position 1.
2 Gray Position 2 Pulls the canisters into position 2.
3 Black Position 3 Pulls the canisters into position 3.
4 Green Lock Operates the locking roller on the position cam.
5 Red Seal Closes the 2 vacuum disks, the bottom heater
disk, and raises the bottom material take off disk
while lowering the top cover disk.
6 Blue Fill Shifts (opens) the valve above the Fill and Heat
Station to allow filling of the canister.
7 Clear Convey Shifts the air flow valve to use the heated blower
air to convey material to the process.
8 Orange Empty Opens the front canister dispense valve.
Additional outputs:
Air Venturi valve Turns on the air to the air venturi vacuum generator.
Heater We use 3 solid-state relays (each rated 25 amps) cycling them on
and off every second, to control the heater.
Blower We use a contacter to control the blower motor.
Check Valve Opens to let air into the vacuum canister for optional purging of
moist air during the cycle, and allowing air in at the end of the cycle.
Operator Station / Controller inputs/outputs:
Green Light Cycle Start
Amber Light Cycle Stop
White Light Index
VFD display Vacuum Fluorescent Display (VFD), 2 x 20 character lines
Strobe and Beeper Alarms, visual and audible
DB9 port
Computer communications port
USB port USB Drive port
4-pin port Convey sensor port
"
LOCK" Switch Location
The "lock" sensor switch is located in the front, on the top deck surface. It is mounted under the
bar, which holds the cam roller that locks the canisters in place.
"Canister Detect" Switch Location
This switch is mounted on a white plastic pillar bolted under the heat disk below the heat station.
It is visible, down low to the right rear, when the door is open. A "yellow" air line runs to it.
Operation of the switch can be confirmed when the heat disk rises against a canister.