3M Tape Application Monitor, Инструкция и перечень запасных частей

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North American - ENG
Date Released:
05-22-18
TAM Application Monitor - Yype 21800
Page 33
44-0009-2048-6 / ECO# 0078483
The PLC has a switched mode power supply,
which is used to provide 24VDC @ ½ amp power
for the various input sensors, HMI, panel indica-
tor and output relays. The PLC power connection
originates from the load side of the circuit breaker
switch through a line fuse. Power enters through
connection 27 and connects to the DPST circuit
breaker switch (Refer to Figures 2-16 and 5-1). The
PLC has eight (8) inputs, con fi gured to
accept current sinking NPN style sensors.
It also has six (6) dry contact output relays.
Four (4) are con fi gured 24VDC and two (2) for AC.
Power for your case sealer is obtained through
connection 21 and is switched on or o ff by means
of the solid state relay (CR) using PLC output 502.
A current sensor is positioned on the AC line of
the case sealer between the DPST circuit breaker
switch and relay CR Case Sealer is used to deter-
mine if the case sealer is running. The sensor
(“go, no go” gauge) provides closure of a dry
contact relay, turning "On" PLC input 000 if the
current exceeds the value set by the dial indicator
located on the current sensor. The amount of
current fl owing through the circuit is not critical.
The sensor is set at the minimum value.
The current sensor resets the Tape Application
Monitor when the operator presses the "ON"
push-button of the case sealer after an error has
occurred. When PLC input 000 is o ff all inputs
are ignored and tape monitoring will not take
place until the case sealer is started and input 000
turns on. The program sequence starts when the
case sealer is running and a box is detected at
PLC input 002 through connection 20. During
program sequence if tape does not apply or cut
a fault condition is generated and relay CR Case
Sealer is momentary cycled from "on – o ff – on"
to brie fl y remove power form connection 21.
This action removes power from the 3M-Matic™
case sealers latching circuit to stop the case
sealer until the ON push-button is depressed.
Press the case sealer "ON" push-button restarts
the case sealer, the control algorithm clears the
fault and the system resets.
The lower dancer arm assembly tape dispense
sensor and low tape supply sensor connect
through external connections 16 and 17. These
connections represent PLC inputs 004 and 003.
The upper dancer arm assembly tape dispense
sensor and low tape supply sensor connect
through external connections 18 and 19. These
connections represent, PLC inputs 006 and 001.
The control panel indicator light and optional dry
contact relay for controlling a remote powered
exit conveyor are connection 23. These represent
PLC output 503 and requires the optional relay.
The optional remote beacon light is connected to
the power cord connection 22 that provides AC
rather than DC power from PLC. This represents
output 501.
Electrical