HindlePower AT30 SERIES Operating And Service Instructions page 15

PROCEDURE
1. See Section 3.5 for necessary steps to follow when accessing internal
components within the AT30.
2. Shut down the AT30 and verify that no internal voltages are present.
3. Refer to the images below and identify the three (3) primary "taps" (T1-H1,
T1-H2 & T1-H3) of the power isolation transformer.
AT30 THREE PHASE ISOLATION TRANSFORMER
(excludes 480 Vac non-tappable variant)
TOP VIEW LAYOUT (T1)
4. Inside the AT30, inspect the transformer wiring, and identify the three (3)
jumpers on the primary-side wire "taps" (T1-H1/H2/H3).
5. Change the jumpers on the primary-side taps as needed per the table below.
jumper setting
208 or 220 or 380 or 550 Vac
H1, H2 & H3 set to "1"
6. Check your work, making sure no exposed wiring is touching ground.
7. Always use all three (3) jumpers, and make sure all connections are tight.
8. Restart the AT30 using the startup procedure in Section 2.1.
9. For more information, see the schematics & wiring diagrams in Appendix C.
10. Contact the factory for a new data nameplate with revised ac input values.
11. For a list of maximum ac input current values, refer to standard (DC5016-00).
INSTALLING THE AT30
SCHEMATIC (T1)
jumper setting
240 or 416 or 600 Vac
H1, H2 & H3 set to "2"
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