Theory of Operation 3M-Matic 800rf Case Sealer
5-16 Copyright 1999, 3M IPC. All rights reserved.
1-1-3. Electrical Schematic
The 800rf Electrical Schematic is shown on three
pages, which are labeled 1 of 3, 2 of 3, and 3 of 3.
The first page contains the power distribution and
motor control circuits, the safety interlocks, and the
fault indicators. The second page contains inputs to
the PLC, such as photocells, reed switches, and other
switches. The third page contains outputs from the
PLC which control the solenoid valves, control
relays, E-STOP and RUN lamps, and the box counter.
Table 5-4 lists the electrical components shown on
the schematic and provides other information such as
the manufacturer and part number.
Table 5-4. Electrical Components
Component Manufacturer
Main Disconnect Switch DISC 1, Sprecher+Schuh LA2-16
Overload Circuit Breaker OL1  OL4, Allen-Bradley CAT-140-MN-0160,
Sprecher+Schuh KT3-25-PA-11 (Auxiliary Contacts)
Drive Motors Coel H63A4
Control Relays K1  K4, Sprecher+Schuh CA4-5C-10
Fuse 10A F1  F3, Little Fuse CCMR-10
Fuse 3A F4, F5, Little Fuse KLDR-3
Power Supply Omron S82J-6024
Alarm Relay K5, Nais HC4-H-DC24V
Guard Door Interlocks GRD1  GRD4, Bernstein SK-U1ZM
Latching E-Stop Switches Allen-Bradley 800EM-LMJP24
Indicator Lamps Allen-Bradley 800EQ-PXXX
Main Air Solenoid Valve SV0, SMC SY7120-5D2-02T
Solenoid Valves SV1  SV11, SMC 5Y5140-5FU
Programmable Logic Controller PLC, Allen-Bradley SLC 500 1747-L40F
Photocells PC1  PC6, Omron E3F2-R2B4-P1
Control, Residual Magnetism CRM, SU1, Allen-Bradley 199FSM21
Low Air Pressure Switch PS1/SU2, SMC, IS 1000 F01X201
Carton Counter Omron H7GP-CD
Reed Switches RS1  RS4, SMC DC73C-75 or SMC D-A57
Function Switches S1  S3, S4A and S4B, Allen-Bradley 800-3X