Proface LT3300 - 5.7 All-in-One HMI" - Manual (Page 5)

4
Handling
Wiring
Maintenance
Wiring Layout Precautions
Installation
Do not disassemble or modify the LT unit. Doing so may cause a fire or an electric shock.
Do not operate the LT in an environment where flammable gases are present, since it may cause an
explosion.
To prevent electrical shock or equipment damage, unplug the LT unit’s power cord from the power supply
prior to installing or wiring the LT.
To prevent an electric shock be sure to disconnect your LT unit’s power cord from the power supply before
wiring the LT.
Do not use the voltage not specified in the manual. Doing so may cause a fire or an electric shock.
The cables connected to the LT should be secured by cable clamps to prevent weight or tension of the
cables added to the connectors or terminals.
The LT unit’s wiring should be checked to confirm that both the operating voltage and wiring terminal
locations are correct. If either the voltage or the wiring terminal location is incorrect, it can cause a fire or
accident.
NEVER touch a live power terminal. Doing so could cause an electrical shock or a machine malfunction.
To prevent an electrical shock, unplug the LT unit’s power cord before either cleaning the LT or attaching/
detaching the power terminal attachment screws.
Do not connect or disconnect Host and LT unit communication cables while the LT is turned ON.
Do not replace the LT unit’s battery yourself. The LT uses a lithium battery for backing up its internal clock
data and the battery may explode if it is replaced incorrectly. When replacement is required, please
contact your local LT distributor.
To prevent a LT unit malfunction due to excessive noise, isolate all LT input/output signal lines from all
power wiring or power cables via a separate wiring duct.
Be sure all cable connectors are securely attached to the LT unit. A loose connection may cause incorrect
input or output signals.