Eaton EMR-3MP0 - Digital Inputs

• A wide-range power supply unit; and
• Four (4) digital inputs, grouped.
• Connector for the functional earth (which must be connected, see the “Warning”
message above)
Auxiliary Voltage Supply
•
The aux. voltage inputs (wide-range power supply unit) are non-polarized. The
device can be supplied with AC or DC voltage.
• The permissible voltage range is: 24 … 270 Vdc / 48 … 230 Vac (−20/+10%)
• There is a fuse built into the wide-range power supply unit: 6.3 A time-lag.
(This fuse is not to be replaced by the user, but is necessary for safe operation.)
Moreover, the voltage supply must be protected by an external fuse as follows:
• 2.5 A time-lag miniature fuse 5 x 20 mm (approx. 1/5 x 0.8 in.) according to
IEC 60127
• 3.5 A time-lag miniature fuse 6.3 x 32 mm (approx. 1/4 x 1 ¼ in.) according to
UL 248‑14
Digital Inputs
The module is provided with 4 grouped digital inputs.
The assignment of the digital inputs is descibed in ╚═▷ “Digital Input Con󰊎guration”.
Check the “EMR-3MP0 Reference Manual” (separate document) for available signal
assignments.
CAUTION!
When using DC supply, the negative potential has to be connected to the common
terminal (COM1, COM2, COM3 - please see the terminal marking).
CAUTION!
For each digital input group the related voltage input range has to be parameterized.
Wrong switching thresholds can result in malfunctions/wrong signal transfer times.
The digital inputs are provided with di󰊍erent switching thresholds (settable via parameter
[Device Para / Digital Inputs / DI Slot Xx / Group y] »Nom Voltage«). For each group the
following switching thresholds can be de󰊎ned:
• “24 Vdc”
• “48 Vdc”
74 www.eaton.com EMR-3MP0
2 Hardware
2.2 EMR-3MP0 – Installation and Wiring