6
I J
H
D
E F
G
*1 Operation mode includes Display and touch key
features.
*2 Includes the performance of logic program fea-
tures.
D : Power Input Terminal Block : The input
and ground terminals for the DC power
cable.
E : External Serial I/F : RS-232C/RS-422 in
terface. Connects a controller.
F : Tool Connector : Data Transfer cable is
connected here.
G : RUN/STOP Switch (LED lights during
RUN mode.) : RUN - Indicates the logic
program is operating.
STOP - Indicates the logic program has
stopped.
H : Alarm Output : Turns OFF (Releases) the
designated contact when a major or watch
dog error occurs.
Alarm Output Circuit
I : Flex Network Connector
J : Flex Network LED :
Operation
Mode
*1
Controller
Operation Mode
*2
LED Color
OFFLINE
STOP
Green - Constant
In Operation
RUN
Green - Constant
In Operation
STOP
Green - Flashing
In Operation
Backlight burnout
has occurred
Green / Red
- Constant
In Operation
Major Error
Red - Constant
Status LED
Indicates
RUN
(Green)
ON when communication is
normal
ERR
(Red)
ON when an error occurs
in a connected I/O unit
C : Status LED :
Alarm Output Circuit
Turning the LT unit ON will start the unit’s system software and the alarm out-
put circuit’s relay. When a major error triggers a watchdog alarm, however, this
relay will turn OFF. Since an undefined LogiTouch input or output condition
can occur, be sure to design an external failsafe circuit that will monitor the
output of this relay.
