Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 82)

Installing Your
Programmable Controller
Chapter 4
4-43
1. Turn the power switch on the front of the 1770-T3 terminal to the
OFF position.
2. Plug the ac power cord into the 1770-T3 terminal.
3. If using a processor with a power supply, plug the ac power cord into
the ac power source.
4. Connect one end of the 1772-TC Interconnect Cable to CHANNEL A
at the back of the industrial terminal.
5. Connect the other end of the interconnect cable to the socket labeled
INTFC at the front of the processor.
6. Place the PLC-2 family keytop overlay onto the keyboard.
7. Turn the power switch on the front of the 1770-T3 terminal to the
ON position.
8. Turn the power switch of the processor to the ON position.
9. Press the keys [1] [1] on the industrial terminal keyboard.
In cases where unexpected machine motion could damage equipment or
injure personnel, you should provide a hard-wired master control relay for
emergency power shutdown. Allen-Bradley suggests you include several
emergency stop switches in the master control relay circuit. When any of
the emergency stop switches is opened, power to the input and output
devices is removed. Power is still supplied to the system power supply so
that the processor continues operation even though all of its input and
output devices are powered down.
ATTENTION: Emergency stop switches can be monitored but
should not be controlled by your program. Any emergency stop
switch must turn off all input and output devices by removing
power to the master control relay. Otherwise, it is your
responsibility to provide the master control relay and emergency
stop switches. You must make certain that emergency stoop
switches are wired in series and are located to provide quick and
easy access to the operator or maintenance personnel.
Master Control Relay