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2 Mounting
Use a shielded line to connect to the load; ensure that the shielding is connected
to earth on both sides.
v Chapter 2.2 "Filtering and interference suppression"
v Chapter 3.3.5 "Suitable lines and cross-sections"
Control inputs
Switch-on se-
quence when
using bus sys-
tems
2.2 Filtering and interference suppression
System
Structure
18
Choosing the suitable line
The terminal strip for control connections (inputs and outputs) has been de-
signed for safe isolation from the mains voltage (SELV). To prevent the safe
isolation from being impaired, ensure that all connected electrical circuits are
also safely isolated. The required auxiliary voltages must be SELV voltages.
When using a bus system, the control electronics of the IPC 300 must be per-
manently supplied with DC 24 V, in order to maintain the field bus communica-
tion. S1 is used to disconnect the load.
If the voltage supply of the power section is re-activated via S1, the IPC 300
performs a soft start (soft start of the load to the desired setpoint value).
v Chapter 3.4.1 "Single-phase operation: phase / N" and
Chapter 3.4.2 "Single-phase operation Phase / Phase"
Compliance with the EMC standards can only be achieved through additional
EMC measures.
These include:
- EMI filter in the supply line of the voltage supply for the power section
- A shielded line to the load
- Function equipotential bonding (FB)
Compliance with the relevant EMC standards must be tested for the overall
system.
To keep interference emission through conducted and radiated interference
below the permissible levels defined in the pertinent EMC standards, con-
structive measures must be taken in the installation and wiring stages in addi-
tion to supply input filtering. Poor earth connection of the EMI filter will reduce
the effectiveness of the interference suppression measures.
The following points should be noted in order to achieve good configuration
for EMC purposes:
h All metallic components of the device or cabinet must be well bonded for
HF currents over a large surface area.
h The EMI filter should be installed as close to the IPC 300 as possible, on a
common metal plate if possible. Route lines for control inputs and signal
lines as far apart from each other as possible, and use shielded lines.
h If possible, do not route power lines in the same cable duct as control or
signal lines.
h The line between the load and the IPC 300 should be as short as possible
V1.00/EN/00741192/2021-03-30 [IPC 300]
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