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6. For DC configured power see "DC Applications" on pages 12 & 14.
7 .
Verifying Proper Operation: First disconnect all equipment that may introduce a hazard and notify personnel
before powering the panel!
TURN POWER ON. With up to 600V 3~ applied, the L1, L2, and L3 indicators should flash or glow according
to respective model "FLASH RATE" Specifications on PG. 15 & 16. The type of power system grounding
configuration determines if the GND indicator normally indicates (See GND Indicators, PG. 15).
8. TURN POWER OFF. All indicators should be extinguished. Note: If only a single LED illuminates for any (2)
indicator pairs, STORED ENERGY is likely present and must be removed or discharged. All indicators must be
extinguished or a shock hazard is present on the monitored lines.
9. To complete proper installation, verify proper grounding of the GND lead-wire.
Use this procedure to insure proper grounding:
a. Complete normal installation and apply power to the R-3D2, if the GND LEDs do not illuminate, proceed
to step b.
b. Remove power and re-establish an electrical safe work condition to allow one phase lead-wire to be discon-
nected from its source by either disconnecting wire or pull a fuse.
c. Re-apply power and verify that the GND LEDs and Neutral (N) LEDs for Wye models now illuminate. If not,
remove power & provide current with a 1M-2M ohm 1W resistor temporarily connected from any phase to
ground. Repeat step c.
d. To complete installation, disconnect power before removal of step c.) resistor & to restore the phase
lead-wire or fuse. Reapply power to reverify that L1, L2, & L3 LEDs illuminate.
BEFORE OPENING A PANEL, TURN POWER OFF! (Steps 1-9 must first verify proper operation of indicators.)
SAFETY PROCEDURES STILL APPLY: Before working on an electrical conductor, verify zero electrical energy with
proper voltage testing instrument and the proper procedure as per NFPA 70E 120.1(5), 120.2 (F)(2)(f)(1-6), OSHA
1910.333(b)(2)(iv)(B).
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