Wiring; The Precautions On The Wiring - Mitsubishi Q01CPU User Manual

10
LOADING AND INSTALLATION

10.6 Wiring

10.6.1 The precautions on the wiring

DANGER
CAUTION
10
- 36 10.6 Wiring
10.6.1 The precautions on the wiring
Completely turn off the externally supplied power used in the system
when installing or placing wiring. Not completely turning off all power
could result in electric shock or damage to the product.
When turning on the power supply or operating the module after installa-
tion or wiring work, be sure that the module's terminal covers are cor-
rectly attached. Not attaching the terminal cover could result in electric
shock.
Be sure to ground the FG terminals and LG terminals to the protective
ground conductor. Not doing so could result in electric shock or errone-
ous operation.
When wiring in the programmable controller, be sure that it is done cor-
rectly by checking the product's rated voltage and the terminal layout.
Connecting a power supply that is different from the rating or incorrectly
wiring the product could result in fire or damage.
External connections shall be crimped or pressure welded with the spec-
ified tools, or correctly soldered.
Imperfect connections could result in short circuit, fires, or erroneous
operation.
Tighten the terminal screws with the specified torque.
If the terminal screws are loose, it could result in short circuits, fire, or
erroneous operation.
Tightening the terminal screws too far may cause damages to the screws
and/or the module, resulting in fallout, short circuits, or malfunction.
Be sure there are no foreign substances such as sawdust or wiring debris
inside the module.
Such debris could cause fires, damage, or erroneous operation.
The module has an ingress prevention label on its top to prevent foreign
matter, such as wire offcuts, from entering the module during wiring.
Do not peel this label during wiring.
Before starting system operation, be sure to peel this label because of
heat dissipation.
Install our programmable controller in a control panel for use.
Wire the main power supply to the power supply module installed in a
control panel through a distribution terminal block.
Furthermore, the wiring and replacement of a power supply module have
to be performed by a maintenance worker who acquainted with shock
protection.
(For the wiring methods, refer to Section 10.6.2.)