Siemens SIMATIC IPC PX-39A PRO - SIMATIC IPC Diagbase; SIMATIC IPC Diagmonitor

Mounting and connecting the device
3.3 Connecting the device
SIMATIC IPC PX-39A PRO
50 Operating Instructions, 11/2022, A5E51699950-AA
3.3 Connecting the device
3.3.1 Connection information
Please note the following to ensure you operate the device safely and in accordance with
regulations:
WARNING
Safety regulations - connecting cable
Use only DC connecting cables which comply with the local safety regulations.
Otherwise, there is a risk of fire and electric shock. This can result in personal injury or
property damage.
• Ensure that the DC connecting cables comply with the safety regulations of the country
in which the device is installed and bear the marks required in each case.
•
Connect the protective conductor in accordance with the operating instructions.
WARNING
Risk of electric shock
The On/Off switch does not fully disconnect the device from the line voltage.
There is also a risk of fire if the device or connecting lines are damaged.
• Always fully disconnect the device from the line voltage before performing work on the
device or when the device will not be used over an extended period of time.
• For control cabinet mounting: Use a central, easily accessible AC circuit breaker close to
the device, if possible.
•
When you install the device, ensure that the power supply connector is easily accessible.
NOTICE
Approval in accordance with IEC/EN/UL61010
• The device may only be connected to a 24 V DC power supply that meets the
requirements for safe extra-low voltage (SELV/PELV) in accordance with the
IEC/UL/EN/DIN-EN 61010-2-201 standard. The power supply must meet the Limited
Energy requirement according to IEC/UL/EN/DIN-EN 61010-2-201
• If the device is installed in an enclosure that complies with section 9.3.2. c) of
IEC/UL/EN/DIN-EN 61010-1 und IEC/UL/EN/DIN-EN 61010-2-201, it can be supplied from a
"Higher Limited Energy" source. The device is then classified as "OPEN EQUIPMENT".
Note
Reverse polarity protection
The 24
V DC power supply is protected against polarity reversal. If you mix up the 24 V DC
connecting cables and ground, the device is not damaged but does not switch on. After the
power supply has been connected correctly, the device will again be ready to operate.