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1-3
Specifications and Characteristics
1-3-1
General Specifications
Item
Unit type
General Specifications
Ambient Operating Temperature
Ambient Storage Temperature
Ambient operating Humidity
Internal Current Consumption
Dimensions (mm)
Weight
Mounting Position
Maximum Number of CT021 Units
per Rack
NJ system (CPU rack and expan-
sion rack)
Data Exchange with CPU Unit
* However, the number that can be mounted in one Unit depends on the maximum current that the Power Supply
Unit can supply and the current consumption of other Units.
CJ-series High-speed Counter Units Operation Manual for NJ-series CPU Unit(W492)
CJ1W-CT021
CJ-series Special I/O Unit
Conform to general specifications for Sysmac NJ-series
0 to 55 °C
−20 to 70 °C
10% to 90% without condensation
280 mA (at 5 V)
31 x 90 x 65 (W x H x D)
100 g
NJ-series CPU Rack or NJ-series Expansion Rack
Equal to the number of slots of the Rack*
24
Data is exchanged through I/O ports, or as necessary with memory for CJ-series Unit.
For details, refer to 4-2 Memory Allocation.
1 Introduction
1
1-7
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