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Sequence of Operations -
Racking Operation (Cont.)
To Reconnect ATS
1. With the Isolation ATS on a lifting device, approach the
Bypass Frame so as to align with the Cradle Rail Slider.
Make sure the Rail Sliders are fully extended.
2. Make sure the rollers on each side of the Isolation ATS sits
on the Rail Sliders.
3. Once engagements with the Rail Sliders are con rmed,
lifting provisions from the lift device can be removed.
4. Using the Isolation ATS pull out handle, push the Isolation
ATS into the ISOLATE position.
5. The Isolation ATS can now be racked into any position using
the Charging Handle via the Bypass Access Control Panel.
Rotate the Charging Handle clockwise until the intended
Status Annunciation Light is illuminated.
6. Upon racking into the AUTO position, the Isolation ATS
contacts will open.
7. Rack fully into AUTO position. User should feel a mechanical
stop at AUTO position. Check that text "AUTO" is visible
in the Racking Position Indicator of the Bypass Access
Panel (refer Figure S5-2) and the AUTO Annunciation Light
is illuminated (refer Figure S5-1).
8. When the ATS is in the AUTO position, press the ATS
Contact Reset button. This will make sure the Isolation ATS
closes its contacts to the same Source as the Bypass ATS.
9. At this point, proceed to open the Bypass ATS contacts by
pressing the Open button via the Bypass Access Panel.
10. Rotate the Control Switch to the Auto position.
11. ATS is now fully automatic.
Notes:
1.
Control Switch in Inhibit will prevent ATS electrical operation.
2.
DO NOT use excessive force on the Charging Handle.
3.
When ATS is in Test or Isolate, Bypass Switch is a manual transfer
switch to either available source (indicated on light panel).
Zenith Automatic Transfer Switch |
new.abb.com/low-voltage
Removal of the Isolation ATS
Upon reaching the Isolate position via the Racking
operation, user can proceed with removing the Isolation
ATS completely from the Bypass Isolation product. This
allows for maintenance or installation activities to be done
externally that require access to areas of the Bypass product
that will otherwise be inaccessible had the Isolation ATS
is still in place as part of the Bypass Isolation product.
Examples of such activities include servicing work on the
Assembly. Using the Isolation ATS pull out handle, pull the
Figure S5-10 illustrates application of lifting hooks on lifting
provisions present on the Isolation ATS. Recommended lifting
Approximate weight of Bypass-Isolation ATS: 800 – 1000 lbs.
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