Powerware Ferrups FE/QFE 500VA User Manual download pdf (Page 72)

Phase Check

Powerware

FERRUPS FE/QFE UPS (500 VA–18 kVA) Installation Guide : Rev A www.powerware.com

10–18 kVA: If you have an external battery cabinet(s) with a DC

switch, turn the switch to the ON position.

6. Turn the UPS ON/OFF switch to the ON position. The switch

is located on the back of the 500 VA–3.1 kVA models and on

the front of the 4.3–18 kVA models. The load should still be

disconnected at this time.

After a short startup test, the READY indicator blinks for a few

seconds and then remains illuminated. The UPS is ready to

supply output power.

7. Turn the bypass switch to the UPS position.

8. Use an AC voltmeter to measure voltages on the terminal strip

inside the bypass switch cabinet (refer to the label on the back

of the switch’s lower front cover panel for the terminal

numbers).

Record your measurements in the following chart according to

the type of bypass switch installed. The voltages in the first

column should be nearly equal to the voltages in the second

column. If the values differ by more than a few volts, check the

terminal strip connections and correct any wiring problems.

CAUTION

If the AC input voltage is 208V, measure 88 Vac between the AC output terminals:

: Internal Bypass Switch: 6 and 7 or 6 and 8

: External Bypass Switch: N and X1 or N and X2

DO NOT connect any 120V LOAD to the 88V terminals.

Internal Bypass Switch

AC to UPS Load Measurement AC Line Input Measurement

X1 to X2 Vac L1 to L2 Vac

NtoX1 Vac NtoL1 Vac

NtoX2 Vac NtoL1 Vac

1 2 ... 67 68 69 70 71 72 73 74 75 76

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Powerware Ferrups FE/QFE 500VA User Manual Page 72