YOKOGAWA CENTUM CS, Техническая информация

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2. Transportation, Storage and Installation
2-50
TI 33J01J10-01EN
The following shows how to mount N-IO nodes (Non-Intrinsic Safety barrier) in a junction box:
F020523.ai
Junction Box
Non-mounting area (1unit or more)
NIU
NIU
IOBP
Heat-generating
device mountig area
(max. 40 W)
IOBP IOBP
IOBP IOBP
Non-mounting area (2 units) / Wiring is possible
Non-mounting area
/ Wiring is possible
(30 mm)
Heat-generating device non-mounting area / Wiring is possible
Wiring area Wiring area
Figure Example of Mounting N-IO Nodes (Non-Intrinsic Safety Barrier) in a Junction Box
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Example of Mounting N-IO Nodes (Intrinsic Safety Barrier) in a Junction Box
Temperature conditions
In this example, the ambient temperature is assumed to be the following.
Junction Box ambient temperature 50 °C or less
Maximum numbers of units that can be mounted
Type Model Number of units that can be mounted per side
Per junction box
NIU A2NN30D (*1) Up to 1
IOBP_IS
A2BN4D (*1) or
A2BN5D (*1)
Up to 2 (2 rows × 1 shelf)
Other
Heat-generating device
(*2)
heat generation: 20 W or less
*1: Specify the temperature environment option (-40 to 70 °C).
*2: The device to be mounted shall be selected from those that have the ambient temperature range of +15 °C or more.
Heat-generating devices other than the above shall not be mounted in the junction box.
In this example, IOBP cannot be mounted.
Mar. 29, 2019-00