Setup And Procedures Before Operation; Handling Precautions - Mitsubishi Electric MELSECQ Series User Manual

5 SETUP AND PROCEDURES BEFORE OPERATION

CHAPTER 5 SETUP AND PROCEDURES BEFORE OPERATION

5.1 Handling precautions

Completely turn off the externally supplied power used in the system before cleaning or
tightening the screws.
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Failure to turn all phases OFF could lead to electric shocks.
Use the programmable controller in an environment that meets the general specifications
contained in the CPU User's Manual.
Using the programmable controller outside the general specification range environment could
lead to electric shocks, fires, malfunctioning, product damage or deterioration.
Do not directly touch the conductive section and electronic parts of the module.
Failure to observe this could lead to module malfunctioning or trouble.
Make sure that foreign matter, such as cutting chips or wire scraps, do not enter the module.
Failure to observe this could lead to fires, trouble or malfunctioning.
Never disassemble or modify the module.
Failure to observe this could lead to trouble, malfunctioning, injuries or fires.
Completely turn off the externally supplied power used in the system before installing or
removing the module.
Failure to turn all phases OFF could lead to module trouble or malfunctioning.
While pressing the installation lever located at the bottom of module, insert the module fixing
tab into the fixing hole in the base unit until it stops. Then, securely mount the module with the
fixing hole as a supporting point. Improper mounting of the module may lead to malfunctioning,
faults, or dropping.
When using the module in the environment subject to much vibration, secure the module with a
screw.
Tighten the screw within the range of the specified tightening torque.
Insufficient tightening may lead to dropping, short-circuit, or malfunctioning.
Excessive tightening may damage the screw or module, leading to dropping, short-circuit, or
malfunctioning
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This chapter describes the procedure up to the operation of the QD70 and the part
identification nomenclature and setting and wiring methods of the QD70.
This section provides the precautions for handling the QD70.
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DANGER
!
CAUTION
!
MELSEC-Q
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