The Main Circuit: U - GE VersaPoint IC220PBI002 User Manual

5

The Main Circuit: U

The main circuit with the main power U
NIU
U is fed through all subsequent modules until it reaches the next power terminal.
M
A new circuit that is electrically isolated from the previous one begins at the next
power terminal.
Multiple power terminals can be used within one station.
Function of U
Voltage of U
Current carrying
capacity of U
Generation of U
For many applications, the capacity of the U
NIU is sufficient to power the station. If necessary, U
power terminal. A power terminal must be used if:
1. Different voltage ranges (e.g., 120 V) are needed
2. Electrical isolation is required.
3. The maximum current carrying capacity of a voltage jumper (U
reached.
5-4 VersaPoint™ I/O System Profibus-DP NIU User's Manual – August 2005
M
Power Terminal
Several independent segments can be created within the
M
main circuit. The main circuit provides the main power for
these segments. For example, a separate supply for the
actuators can be provided in this way.
The voltage in this circuit must not exceed 250VAC.
M
The current carrying capacity is 8A, maximum (total current
with the segment circuit). If the limit value of the voltage
M
jumpers U
M
new power terminal must be used.
M
starts at the NIU or a power terminal.
M
Segment Terminal
and U is reached (total current of U
S
supply integrated into the Profibus
M
can also be supplied via a
M
and U ), a
S M
or U ) is
M S
GFK-1911B