YOKOGAWA CENTUM CS, Техническая информация

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2. Transportation, Storage and Installation
2-38
TI 33J01J10-01EN Mar. 29, 2019-00
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Example of Mounting an FCU for N-IO and N-IO Nodes in a Cabinet
Temperature conditions
In this example, the ambient temperature is assumed to be the following.
Cabinet ambient temperature 40 °C or less
Maximum numbers of units that can be mounted in case of this example
Type Model Number of units that can be mounted per side
FCU A2FV50D/A2FV50S Up to 1
NIU A2NN30D Up to 1
IOBP A2BN3D Up to 6 (2 rows × 3 shelves)
Heat-generating devices other than the above shall not be mounted in the cabinet.
Exception to mounting heat-generating devices
Shunt Resistor Unit : A2EXR001 for the Pulse Input Signal Adaptor (A2SAP105) can be mounted
in the same cabinet under the following conditions:
• A2EXR001 shall be mounted on the side of the cabinet or under IOBP with a distance of
200 mm from NIU.
• When 5 or more A2EXR001units are mounted on a cabinet, the number of IOBP on the
cabinet shall be reduced in accordance with the following table.
Table Example of Number of A2EXR001 Mounted and Mounting Conditions
Number of A2EXR001 mounted Mounting condition
1 to 4 Can be mounted in the same cabinet
5 to 12 Can be mounted in the same cabinet by reducing one IOBPs
13 to 20 Can be mounted in the same cabinet by reducing two IOBPs
• Further reduce one IOBP on the cabinet per 8 A2EXR001 units when 21 or more
A2EXR001 units are mounted on a cabinet.
Mounting conditions
• The FCU on the top shelf shall be mounted with a 100-mm or more space from the cabinet
ceiling.
• A 1-unit (=44.45 mm) or more space shall be provided between NIU and IOBP.
• A circulation fan unit shall be mounted on the shelf below the FCU with a 1-unit space. A
1-unit or more space shall be provided under the circulation fan unit.
• Suitable length of signal cables and power cables should be used.