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Installing and connecting the device
3.3 Connecting the device
SIMATIC IPC847D
Operating Instructions, 01/2014, A5E32997454-AA
41
I/O devices
NOTICE
Fault caused by I/O devices
The connection of I/O devices can cause faults in the device. The result may be personal
injury and damage to the machine or plant. Note the following:
•
Connect only I/O devices which are approved for industrial applications in accordance
with EN 61000-6-2/IEC 61000-6-2.
•
Peripheral devices that are incapable of hot-plugging may only be connected after the
device has been disconnected from the power supply.
Damage through regenerative feedback
Regenerative feedback of voltage to ground by a connected or installed component can
damage the device.
Connected or built-in I/Os, for example, a USB drive, are not permitted to supply any
voltage to the device. Regenerative feedback is generally not permitted.
3.3.2
Connection of equipotential bonding
A low-impedance ground connection improves the discharge of interference generated by
external power cables, signal cables or cables for I/O modules to ground.
This equipotential bonding connection has the following properties:
●
large surface
●
large surface area contacts
●
M4 thread
●
Symbol on the device:
Requirement
●
TORX T20 screwdriver
Procedure
1. Connect the equipotential bonding connection
①
on the
device with the central ground of the control cabinet or the
plant in which the device is installed. The minimum cross-
section of the equipotential bonding cable may not be less
than 2.5 mm
2
.
Содержание SIMATIC IPC847D
Страница 4: ...Preface SIMATIC IPC847D 4 Operating Instructions 01 2014 A5E32997454 AA ...
Страница 27: ...Overview 1 3 Accessories SIMATIC IPC847D Operating Instructions 01 2014 A5E32997454 AA 27 ...
Страница 28: ......
Страница 34: ...Safety Instructions 2 2 Notes on use SIMATIC IPC847D 34 Operating Instructions 01 2014 A5E32997454 AA ...
Страница 222: ...Index SIMATIC IPC847D 222 Operating Instructions 01 2014 A5E32997454 AA ...