Power I/O Modules and Field-side Devices
The adapters provide power to the I/O modules and lets them transfer data and execute
logic.
- System-side power powers the system and its modules. System-side power is also known as Backplane power.
- Field-side power powers field-side devices that are connected to some PointMax I/O modules. Field-side power is also known as SA power.
- All PointMax I/O modules maintain internal electrical isolation between the system-side and field-side power buses.
System power begins at the EtherNet/IP adapter and passes across the I/O module internal
circuitry via power buses. The MOD power bus and SA power bus are isolated from each
other.
ATTENTION:
Power to this equipment and all connected I/O must be supplied from a source that is
isolated from Mains power via a SELV power supply.
System-side power, that is, Backplane power begins at the PointMax EtherNet/IP adapter
and passes through the mounting bases. It can be regenerated by installing a 5034-EXP or
5034-EXPXT expansion power after 16 modules.
Field-side power, that is, SA power begins at the PointMax EtherNet/IP adapter and passes
through the mounting bases. You can install a 5034-MBSA or 5034-MBSAXT mounting base to
start a new SA power domain.
SA Power Requirements
- You must limit the SA field-side power source to 10 A, max, at 18...30V DC.
- You must use SELV-listed power supplies for SA power.
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