ioLogik 4000
Hardware Installation
2-9
When to Use the Power Expansion Module
When the total current consumption for connected I/O modules exceeds 1.5 A, an M-7001 power expansion
module is required.
Refer to the “Power Consumption Spreadsheet” in
Program Files
ioLogik
Utility
to calculate if an extra
power expansion module is needed. The spreadsheet requires Microsoft Excel to operate. Once you enter the
I/O module quantity, the required number of power expansion modules will be computed automatically.
After installing additional power expansion modules, restart the system in the following sequence to ensure a
proper start-up.
Power Off Sequence
1.
Unplug the network adaptor’s terminal block.
2.
Unplug the expansion module’s terminal block.
Power Up Sequence
1.
Plug in the power expansion module’s terminal block.
2.
Plug in the network adaptor’s terminal block.
When to Use the Field Power Distributor
Most of the field power DIO/AIO modules for the ioLogik 4000 series are 24 VDC. If you need to connect 48 VDC
or 110 VAC, 230 VAC digital input or output modules, you must use the Field Power Distributor to isolate
different field powers within a single ioLogik 4000 system.
If all of the DIO modules are 110 VAC, you will need at least one field power distributor to isolate the field power
from the network adaptor (likewise when using 48 VDC or 230 VAC).
When to Use the Potential Distributor
Three types of potential distributor module provide extra wiring points, such as shielding ground, field power
0 V, and field power 24 V.
For example, the 8-channel digital input (sink type) module itself does not have a 24 V wiring point, but you
can add a 24 V potential distributor to make wiring easier.
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