YOKOGAWA FA-M3 Vitesse, Руководство пользователя

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10-1
IM 34M6H33-01E 1st Edition : July 1.2004-00
10. Cabling Guidelines (IMPORTANT)
This chapter describes cabling precautions for ensuring proper operation of the
FA-M3 ASi Master Module.
When connecting slaves to the FA-M3 ASi Master Module (F3LA01), observe the
recommended conditions on cable length and connection mode, as well as
precautions described in this chapter.
CAUTION
■ Recommended Conditions When Not Using An Extender:
- Keep the total cable length within 100 m. This cable length includes the length of the
ASi power supply cable.
- Install the ASi power supply beside the ASi master (F3LA01), no further than 3 m away.
M
PS
S
FC
Xm Ym
Zm
X+Y+Z
X+Z
M
PS
S
E
ASi master
(F3LA01)
ASi extender
ASi slave
FC
ASi cable repeater
ASi power supply
100m
3m
<=
<=
Figure 10.1 When Not Using An Extender
■
Recommended Conditions When Using An Extender
- Keep the total cable length between the ASi master (F3LA01) and the extender within
100m.
- Install the ASi power supply on the secondary side of the extender, no further than 3 m
away.
- Keep the total cable length on the secondary side of the extender within 100 m. If 2
extenders are used, keep the total cable length within 300 m.
M
PS
S
E FC
W m Xm Ym
Zm
W
X+Y+Z
X+Z
<=
<=
<=
100m
100m
3m
Figure 10.2 When Using An Extender
■
When using FCs (ASi cable repeaters) to perform branching, minimize branch
locations as far as possible.