Connection; Emc Concept - Pepperl+Fuchs IDENTControl IQH3-FP-V1 Manual

IQH3-FP-V1
Installation
4.5

Connection

Connect the read/write device to the IDENTControl control interface using a shielded connec-
tion cable (see chapter 3.5.3). Ensure that the shield fully encapsulates the connection cable to
avoid EMC interference. See chapter 4.6.
Warning!
Incorrect electrical connection
Damage to the device or plant caused by incorrect electrical connection.
Check all connections in the plant before commissioning the device.
After connecting the supply voltage, the POWER LED on the device lights up green. If the LED
does not light up on the device, the power supply is not connected correctly.
4.6

EMC Concept

The IDENTControl owes its outstanding immunity against emission and immission to its consis-
tent shielding design. It uses the principle of the Faraday cage. Interference is intercepted by
the shielding.
Read Head
Figure 4.1
The cable shielding is used to discharge electromagnetic interference.
Note
If cables with double shields are used, e.g. wire mesh and metalized foil, the both shields must
be connected together, with low resistance, at the ends when making up the cable.
Power supply cables are the source of much interference, e.g. from the supply lines of 3-phase
electric motors. For this reason, the parallel laying of power supply cables with data and signal
cables should be avoided, particularly in the same cable duct.
18
IDENTControl
Ethernet
Control