Connection; Emc Concept - Pepperl+Fuchs IUH-F190-V1 Series Manual

IUH-F190-V1-*
Installation
Figure 5.3
Note!
You cannot switch the polarization on the IUH-F190-V1-EU read/write head. This read/write
head has an almost circular polarized antenna. Owing to its small size, the antenna polarization
is not perfectly circular, but elliptical. This means the antenna may have a preferred alignment.
5.4

Connection

Connect the read/write head to the IDENTControl control interface using a shielded connection
cable (see chapter 4.8.3). Ensure that the shield is end-to-end to avoid EMC interference. (see
chapter 5.5)
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 to the control interface, the POWER LED lights up green on
the device. If the LED does not light up on the device, the power supply is not connected
correctly.
5.5

EMC Concept

The outstanding noise immunity of the IDENTControl against emission and immission is based
on its consistent shielding design, which uses the principle of the Faraday cage. Interference is
caught in the shield and safely diverted via the ground connections.
write head
The cable shielding is used to discharge electromagnetic interference. When shielding a cable,
you must connect both sides of the shield to ground with low resistance and low inductance.
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.
Note!
The circuit ground is conductively connected to the housing of the write/read head and to the
protective ground. (Connection image
= Vertical polarization plane
1
= Horizontal polarization plane
2
IDENTControl
INTERBUS
see Figure 4.7 on page 24)
Control
31