Installation and Configuration
Npaq MR Hardware Manual
2.2.3. I/O and Signal Wiring Requirements
The I/O, communication, and encoder feedback connections are typically very low power connections. In
some applications, especially when there are significant wire distances, a larger wire size may be required to
reduce the voltage drop that occurs along the wire. This increase may be necessary in order to keep the
voltage within a specified range at a remote point.
Table 2-4:
AC Power Wiring Specifications
Connection
Specification
Value
Signal Wiring
Cable/Wire Rating
(1)
300 V
Minimum Current Capacity
.25 A
Temperature Rating (Insulation)
(2)
80°C
Low Voltage Power
Cable/Wire Rating
(1)
300 V
Minimum Current Capacity
(3)
1 A
Temperature Rating (Insulation)
(2)
80°C
1. ≥ 30 V if the wiring is
not
in close proximity to wiring operating at voltages above 60 V.
2. Insulation rating will need to be rated for the higher voltage if the wiring is in proximity to wiring operating at voltages above 60 V.
3. Larger gauge wire may be required to minimize voltage drop due to voltage (IR) loss in the cable.
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