iL Series User Manual
10
Rev B
California Instruments
2.7 Input Connections
The AC source requires a 3-phase power service that provides 7350 VA
(6000 W) maximum. The power service should have a current rating
greater than or equal to the AC source's fuse rating. The AC source
has a delta input (no neutral connection) and will accept power from
either delta (triangle) or wye (star) services.
Caution:
Two input voltage ranges are available (see "AC Input Ratings"
in chapter 5). The AC source will be damaged if it is operated at
an input voltage that is outside of its configured input range.
In order to maintain phase current balancing, the power service should be a
dedicated line with only iL Series AC sources drawing current from it.
A disconnect
box located near the AC source is recommended for all installations and is
mandatory for direct-wired installations.
2.7.1 Installing the Power Cord
Installation of the power cord must be done by a qualified electrician and in
accordance with local electrical codes.
See Figure 5 and proceed as follows:
•
Check the line fuses as follows:
•
Examine the FUSES label on the rear panel.
•
Remove the safety cover in front of the fuse caps.
•
Unscrew the line fuse caps from the rear panel and verify that all fuses are
as specified on the label. Reinstall the fuses.
•
Reinstall the safety cover in front of the fuse caps.
•
Remove the AC input cover from the back of the unit.
•
Open the line clamp on the AC input cover and insert the line cord through the
opening.
•
Position the power cord so that the clamp is near the end of the outside
insulating sheath on the power cord. Tighten the screws to secure the clamp.
Secure the three AC lines to the AC power strip as follows:
•
Phase 1 to L1 (black).
•
Phase 2 to L2 (red).
•
Phase 3 to L3 (orange).
•
Secure the ground wire (green) to the chassis earth ground terminal.
•
Slip the safety cover over the AC input terminal strip and secure the cover with
the four screws.
•
If required, wire the appropriate power plug to the other end of the power cord.
Strip back the sheath 10 cm (4 in).
Summary of Contents for 3000iL
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