GE VersaPoint IC220PB001, User Manual

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5-12 VersaPoint™ I/O System Profibus-DP NIU User’s Manual – August 2005 GFK-1911B
5
VersaPoint Power Consumption Example
When configuring a VersaPoint Station it is important to consider the current
requirements of each module in the I/O system. These current requirements are
described in the module-specific data sheets. As noted previously:
If the current load limit is reached at U
S
or U
M
a new Power Terminal must be
inserted
If the current load limit is reached for U
L
or U
ANA
a new VersaPoint station
must be built using a new Network Interface Unit.
The following example shows how the current consumptions of a VersaPoint I/O
station can be determined. It also provides insight into the requirement for
additional I/O terminals.
Consider an application which requires the following VersaPoint modules:
Catalog Number Description
IC220MDL721(Qty 3) Output, 24VDC Positive Logic, 2.0A, 2 Points
IC220MDL751 Output, 24VDC Positive Logic, 0.5A, 2 Points
IC220MDL752 Output, 24VDC Positive Logic, 0.5A, 4 Points
IC220MDL641(Qty 2) Input, 24VDC Positive Logic, 2 Points
IC220MDL644 Input, 24VDC Positive Logic, 8 Points
IC220ALG620 Analog In, 15 Bit RTD, 2 Channel
IC220PWR014 Segment Terminal with Electronic Fuse
Using the information on current consumption in the module datasheets, the
following current consumption table can be generated:
Current Consumption of Module No.
U
L
(module)
U
L
(total) U
ANA
U
S
(module)
U
S
(total)
IC220MDL644 1 50mA 50mA 2A 2A
IC220MDL641 2 35mA 70mA 500mA 1A
IC220PWR014 1 30mA 30mA
IC220MDL752 1 40mA 40mA 2A 2A
IC220MDL751 1 33mA 33mA 1A 1A
IC220MDL721 2 35mA 70mA 4A 8A
IC220MDL721 1 35mA 35mA 1.2A 1.2A
IC220ALG620 1 43mA 43mA 11mA
Current Load 371mA 11mA 15.2A
Permissible current consumption
of the voltage jumper 2A 0.5A 8A