Mounting And Installation; Handling Precautions - Mitsubishi Electric MELSEC QS Series User Manual

7
PROCEDURE BEFORE STARTING DATA LINK

7.3 Mounting and Installation

Handling precautions to be taken from when unpacking the safety master module until its
installation are described below.
For details on implementation and installation of the module, refer to the "QSCPU User's
Manual (Hardware Design, Maintenance and Inspection)."

7.3.1 Handling Precautions

(1) Since the module case is made of resin, do not drop it or apply strong
(2) Do not remove the PCB of each module from its case. This may cause a
(3) Be careful not to let foreign matter such as wire offcuts enter the module
(4) The top surface of the module is covered with an ingress prevention
(5) Crimp terminals with insulated sleeves cannot be used with the terminal
(6) Always touch a grounded metal to discharge the static electricity
(7) Tighten the module mounting screws within the following ranges.
(8) To mount the module on a base unit, fully insert the module fixing tab
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- 3 7.3 Mounting and Installation
7.3.1 Handling Precautions
impacts on it.
failure in the module.
during wiring. If any foreign matter has entered, remove it immediately.
Otherwise, it may cause a fire, failure or malfunction.
label film to prevent foreign matter such as wire offcuts from entering
the module during wiring. Do not remove this label until the wiring is
complete. Before operating the system, be sure to remove the label to
allow adequate heat dissipation.
block. Covering the wiring parts for the crimp terminals with mark tubes
or insulated tubes is recommended.
charged in the human body before handling the module.
Failure to do so may cause a failure or malfunctions of the module.
Screw name
Module mounting screw (M3 screw)
Terminal block terminal screw (M3 screw)
Terminal block mounting screw (M3.5 screw)
into the fixing hole in the base unit and press the module into position.
Be sure to tighten the module mounting screws within the specified
tightening torque range.
Improper installation may result in malfunction, failure, or drop of the
module.
Tightening torque range
0.36 to 0.48N m
0.42 to 0.58N m
0.66 to 0.89N m