Mitsubishi Electric QD77MS, User Manual

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Chapter 4 Installation, Wiring and Maintenance of the Product
4.2 Installation
4.2.1 Precautions for installation
The precautions for installing the Simple Motion module are given below. Refer to this
section as well as Section 4.1.3 "Handling precautions" when carrying out the work.
Precautions for installation
DANGER
Completely turn off the externally supplied power used in the system before installing or
removing the module.
Not doing so could result in electric shocks, an operation failure or damage to the module.
CAUTION
Never try to disassemble or modify the modules. It may cause product failure, operation failure,
injury or fire.
Completely turn off the externally supplied power used in the system before installation or
removing the module.
Not doing so could result in an operation failure or damage to the module.
After the first use of the module, the number of connections/disconnections is limited to 50 times (in
accordance with IEC 61131-2). Exceeding the limit may cause malfunction.
Use the programmable controller in an environment that meets the general specifications in the
manual "Safety Guidelines", the manual supplied with the main base unit.
Using the programmable controller in an environment outside the range could result in electric
shock, fire, operation failure, and damage to or deterioration of the product.
Do not directly touch the module's conductive parts and electronic components. Doing so may could
cause an operation failure or give damage to the module.
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.
Incorrect loading of the module can cause a malfunction, failure or drop.
When using the module in the environment of much vibration, tighten 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.
Lock the control panel and prevent access to those who are not certified to handle or install
electric equipment.