Allen-Bradley micrologix 1500, Руководство пользователя

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Publication 1764-UM001A-US-P
Wiring Your Controller 3-7
Wiring Diagrams
This section shows the wiring diagrams for the MicroLogix 1500 controllers.
Controllers with dc inputs can be wired as either sinking or sourcing configuration.
(Sinking and sourcing does not apply to ac inputs.) See pages 3-11 through 3-14
for sinking and sourcing wiring diagrams.
Miswiring - 1764-28BXB Only
The following table shows miswiring conditions and the consequences of improper
wiring:
NOTE
This symbol denotes a protective earth ground terminal
which provides a low impedance path between electrical circuits
and earth for safety purposes and provides noise immunity
improvement. This connection must be made for safety
purposes.
Condition Result
Operating with Voltage Less
than 20.4V dc This will not damage the base unit. The base unit may not
power up.
IMPORTANT
This is not recommended. You must verify
that the line voltage remains within
specified limits.
Reverse Wiring of the Line
Terminals (0 to 30V dc) Reverse wiring will not damage the base unit. The base unit
will not power up.
Applied Voltage Level Exceeds
the Published Recommended
Value Exceeding the published recommended voltage may result in
permanent damage to the base unit.
AB Spares