Npaq® Hardware Manual
Maintenance
4.5. Soft-Start Board Assembly
The Soft-Start / Voltage Select Board contains four fuses (F1-4) used in the Voltage Select circuit to protect
the transformers. Fuses F1 and F3 (Typical value: 4 Amps) provide the primary protection for 100 and 115
VAC operation. Fuses F2 and F4 (Typical value: 3 A) provide the primary protection for 200 and 230 VAC
operation. Fuses F1 and F2 are used to protect the transformer connected to J3. Fuses F3 and F4 are used
to protect the transformer connected to J5.
lists the part numbers for the fuses.
Table 4-12:
Soft-Start Fuse Replacement Part Numbers
Fuse
Manufacturer P/N
Aerotech P/N
2 A SLO BLO, 3AG
Littelfuse 313002
EIF00102
3 A SLO BLO, 3AG
Littelfuse 313003
EIF00103
4 A SLO BLO, 3AG
Littelfuse 313004
EIF00104
7 A SLO BLO, 3AG
Littelfuse 313007
EIF00107
8 A SLO BLO, 3AG
Littelfuse 313008
EIF00109
1A 5mm (F1, MXR Switch bd.)
Littelfuse 213001
EIF00189
N O T E :
Due to inrush currents, all Soft-Start / Voltage Select Board fuses must be of the Slow Blow
type.
DANGER: Always disconnect the Mains power connection before opening the Npaq chassis.
Fuses must not be changed with Mains power applied to unit.
Figure 4-5:
Soft-Start/Voltage Select Board
114
Chapter 4
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Содержание A3200 Series
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