1. System Installation Requirements
1-34
TI 32P01J10-01EN
Precaution on Installing Components
Each component shall be installed in accordance with its installation guidance. In addition, all
components related with S2SC70
-F, SSC60
-F, SSC50
, SSC57
, SNB10D, SNT10D and
SENG shall be installed in a metal cabinet.
Furthermore, the following conditions are indispensable to conform to a marine standard.
• The cabinets including their doors and side panels must be made of a metal.
• Securely connect the cabinet frames and ground bosses on doors and side panels to each
other to ensure electric contacts.
• Attach noise suppression devices, such as noise filters and ferrite cores, to the cables
connecting each component.
Installation of Power-line Noise Filter
Attach a noise filter on the power line for the following components:
• Safety Control Unit (S2SC70
-F, SSC60
-F, SSC50
,SSC57
)
• Safety Node Unit (SNB10D)
• Unit for Optical Bus Repeater Module (SNT10D)
• Safety Control PC (SENG) installed control bus interface (VI702)
Power-line for S
2SC70
-F,
SSC60
-F, SSC50
, SSC57
,
SNB10D, SNT10D
and S2NN30D
Attach a noise filter in each power line of SPW48
, S2PW50
, FAN and external power supply
unit. Alternatively, other devices such as noisecut transformer and insulating transformer can be
used if its characteristic of noise-reducing effects is same as the following equipment.
Noise filter and external power supply unit shall be installed in the same cabinet of the connecting
terminal board for them.
If digital Input/output modules such as SDV144, SDV521, SDV531, SDV53A and SDV541 are
used, use a power supply whose output-ground is insulated for external power supply.
Wiring examples of power cables (a) to (d) are shown below according to the mounting position
of the noise filter and the tap.
Mar. 29, 2019-00