2 System Configuration
2-10
NJ-series CPU Unit Hardware User’s Manual (W500)
Maximum Number of Expansion Racks
Units
Units for CJ-series Expansion Racks
* A CJ-series I/O Control Unit is required on the NJ-series CPU Rack.
NJ-series Power Supply Units
Note Use an NJ-series Power Supply Unit as the power supply for an NJ-series Expansion Rack.
A CJ-series Power Supply Unit cannot be used for an NJ-series Expansion Rack.
I/O Interface Unit
* Includes the weight of the End Cover.
Expansion pattern Maximum number of Racks Remarks
NJ-series CPU Rack plus
CJ-series Expansion Racks
3 Racks The total length of I/O Connecting Cable
between the CPU Rack and an Expansion Rack,
and between all Expansion Racks, must be no
more than 12 m.
Rack Configuration Remarks
NJ-series
Expansion
Racks
NJ-series Power Supply Unit One required for each Expansion Rack.*
I/O Interface Unit (one End Cover
included.)
CJ-series Basic I/O Units A total of up to 10 Units can be connected to the CPU
Rack and to each of the Expansion Racks. (A Controller
error in the major fault level will occur if 11 or more
Units are connected.)
CJ-series Special I/O Units
CJ-series CPU Bus Units
End Cover Must be connected to the right end of the Expansion
Rack. (One End Cover is provided with the I/O Interface
Unit. A Controller error in the major fault level will occur
if the End Cover is not connected to the right end.)
CS/CJ-series I/O Connecting Cable Required to connect the I/O Interface Unit to the I/O
Control Unit or previous I/O Interface Unit.
Model
Power supply
voltage
Output current
Output
capacity
RUN
output
CPU
Rack
Expan-
sion
Racks
Weight
5 VDC 24 VDC
NJ-PA3001 100 to 240 VAC 6.0 A 1.0 A 30 W Yes Yes Yes 470 g
max.
NJ-PD3001 24 VDC 6.0 A 1.0 A 30 W Yes Yes Yes 490 g
max.
Model Specifications
Current consump-
tion
Weight
5 VDC 24 VDC
CJ1W-II101 One Interface Unit is required for each CJ-series Expan-
sion Rack. One End Cover is provided with each Unit.
0.13 A --- 130 g
max.
*
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