Appendix 8.2.3 Power Supply; Appendix 8.2.4 Control Panel - Mitsubishi Electric Q26UD(E)HCPU User Manual

(5) Display device
Use the CE marked display device.
Appendix 8.2.3
The insulation specification of the power supply module was designed assuming installation category II. Be sure to use
the installation category II power supply to the programmable controller.
The installation category indicates the durability level against surge voltage generated by a thunderbolt. Category I has
the lowest durability; category IV has the highest durability.
Category II indicates a power supply whose voltage has been reduced by two or more levels of isolating transformers
from the public power distribution.
Appendix 8.2.4
Programmable controller is an open type device (a device designed to be housed inside other equipment) and must be
installed inside a control panel for use.
*1 Also, each network remote station needs to be installed inside the control panel.
However, the waterproof type remote station can be installed outside the control panel.
(1) Electrical shock prevention
The control panel must be handled as shown below to protect a person who does not have adequate knowledge
of electricity from an electric shock.
• Lock the control panel so that only those who are trained and have acquired enough knowledge of electric
facilities can open the control panel.
• The control panel must have a structure which automatically stops the power supply when the box is
opened.
• For electric shock protection, use IP20 or greater control panel.
668
Power supply
Category IV Category III
Control panel
*1
Category II Category I