Electrical Isolation: Analog Module - GE VersaPoint IC220PBI002 User Manual

5

Electrical isolation: Analog module

The I/O circuit of an analog module receives electrically isolated power from the
24V supply voltage U . The power supply unit with electrical isolation is a
ANA
component of an analog module. The voltage U is carried through in each
ANA
module and is available to the next module.
Analog Input Module
Profibus NIU
IC220ALG220
The voltage jumpers hatched XXXX in the figure are not used in the analog
module. This means that the 24V supply of the NIU (U ) or the power terminal are
M
electrically isolated from the I/O circuit (measurement amplifier) of the analog
module. The I/O circuit of the analog module is supplied by the analog circuit U .
ANA
5-10 VersaPoint™ I/O System Profibus-DP NIU User's Manual – August 2005 GFK-1911B