Selecting A Power Supply Unit; Run Output (Nj-Pa3001/-Pd3001); Calculating Unit Current Consumption; Maximum Current And Power Supplied By Power Supply Units - Omron NJ501-1 Series User Manual

RUN Output (NJ-PA3001/-PD3001)

The internal contacts for the RUN output turn ON when the CPU Unit is in RUN status.
The following operation occurs.
In operation (RUN mode).
The CPU Unit is starting (until entering the operating
status that is specified in the Startup Mode setting).
Operation stopped (PROGRAM mode).
Controller error in the major fault level occurred.
The Power Supply Unit must be on the CPU Rack to use this output.
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Selecting a Power Supply Unit

First select the Power Supply Unit according to whether it can be used on the CPU Rack, the power
supply voltage, and the need for a RUN output. Then check the following table to make sure that the
current consumption and power consumption requirements of each Rack are met.
Power supply
Model
5-VDC CPU
voltage
NJ-PA3001 100 to 240 VAC 6.0 A
NJ-PD3001 24 VDC 6.0 A
* Including supply to the CPU Unit.
Refer to CPU Rack on page 2-5, Expansion Racks on page 2-9, and CJ-series Configuration Units on
page 2-11 for Unit current consumptions. Refer to Rack Current Consumption and Width Display on
page 3-17 for the procedure to check the current and power consumptions for each Rack from the Sys-
mac Studio.

Calculating Unit Current Consumption

The amount of current/power that can be supplied to the Units mounted in a Rack is limited by the
capacity of the Rack's Power Supply Unit. Refer to the following tables when designing your system so
that the total current consumption of the mounted Units does not exceed the maximum current for each
voltage group and the total power consumption does not exceed the maximum power supplied by the
Power Supply Unit.
Refer to CPU Rack on page 2-5, Expansion Racks on page 2-9, and CJ-series Configuration Units on
page 2-11 for the current consumptions of the Units to use in the Unit current consumption calculations.
 Maximum Current and Power Supplied by Power Supply Units
The following table shows the maximum currents and power that can be supplied by Power Supply
Units in CPU Racks and Expansion Racks.
Note 1 When calculating current/power consumption in a CPU Rack, be sure to include the power required by the
CPU Unit itself, as well as the I/O Control Unit if one or more Expansion Racks is connected.
NJ-series CPU Unit Hardware User's Manual (W500)
Status
Output current
5-VDC
Expansion 24 VDC
*
Rack
Rack
6.0 A 1.0 A
6.0 A 1.0 A
Operation
ON
OFF
Replacement
Output
RUN output notification
capacity
function
30 W Yes No
30 W Yes No
3 Configuration Units
Expansion
CPU Rack
Racks
Yes Yes
Yes Yes
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