Proface LT3300 - 5.7 All-in-One HMI" Manuale Utente Pagina 81

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LT3000 Series Hardware Manual
4-14
Emergency Stop Circuit
Do not process emergency stop signals with a software program by inputting the signal to the LT.
Configure the emergency stop circuit externally to the LT as shown in the figure below:
Interlock Circuit 1
To use the LT or a PLC to control a motor circuit for forward/reverse rotation, configure the interlock circuit
shown below externally to the LT.
Emergency stop button
b (normally closed) contact
24VDC
LT
Machine to be
controlled
Input
Output
LT
Motor forward rotation
signal
Motor reverse rotation
signal
Auxiliary b (normally closed)
contact of electromagnetic switch
for motor reverse rotation
Auxiliary b contact of
electromagnetic switch for
motor forward rotation
Electromagnetic
switch for motor
forward rotation
Electromagnetic
switch for motor
reverse rotation
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