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Chapter 3 Starting Up
3.4 Distribution Panel Cut-Off Characteristics
3.3.3
Seawater (Salt Spray Damage)
Due to the salty air, a large volume of sea salt particles are suspended in the air near coastal areas. If
these sea salt particles enter computers, they may cause insulation to fail and parts to corrode or degrade
due to moisture and chemical condensation. Therefore, computers must be installed far from coastal areas.
The installation criteria for preventing salt spray damage from sea salt particles is as follows.
Criteria: The installation is not at sea nor within 0.5 km from the seashore. (An exception is an installation
using air conditioners that do not take in outside air.)
3.4
Distribution Panel Cut-Off Characteristics
The characteristics of breakers in the customer's distribution panel must be considered so that the FX700
main unit can run optimally. Use suitable breakers according to
Characteristics."
Power Input
200 to 240 VAC
Use a long-time-delay type breaker whose cut-off characteristics correspond to phase D shown in
3.1 Distribution Panel Breaker
breaker.
Table 3.3 Distribution Panel Breaker Characteristics
Unit/Device Name
Main device
Power distribution box
Characteristics" (IEC898 or DIN0641 Part II). Alternatively, use a slower
"Table 3.3 Distribution Panel Breaker
Breaker Capacity in
Customer's Distribution
Panel for Use in Countries
Not in Europe
20 A
30 A
25
Breaker Capacity in
Customer's Distribution
Panel for Use in Europe
16 A
32 A
"Figure
C120-0089-03EN
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