Installing Power Wiring From An External D-C Bus To The Drive's Internal D-C Bus Terminals 2 - Reliance electric GV3000 Instruction Manual

5.5 Installing Power Wiring from an External D-C Busto the Drive's
Internal D-C Bus Terminals
Use the following steps to connect D-C input powerto the drive:
Step 1.
Wire the D-C input power leads by routing them according to drive type. Refer to figures 4.1
through 4.6. Tables 3.3 through 3.7 contain the recommended power wiring sizes.
On 1-5 HP drives, route the power leads through the bottom right opening of the drive base.
On 7.5-25 HP drives, route the power leads through the bottom middle-right opening of the
drive base. If the snubber-resistor braking option is used, route the power leads through the
bottom right opening.
On 25-60 HP drives, route the power leads through the top right or bottom right openings of
the drive base.
On 60-100 HP drives, route the power leads through the bottom left opening of the cover.
On 100-150 HP drives, route the power leads through the top left opening of the cover.
CAUTION: Do notroute signal and control wiring in the same conduit with power wiring. This can cause
interference with drive operation. Failure to observe this precaution could result in damage to or destruction
of the equipment.
CAUTION: If the GV3000 drive is connected to an external D-C bus, the user is responsible for D-C bus
short-circuit protection. Failure to observe this precaution could result in damage to or destruction of the
equipment.
Step 2. Connect the D-C input power leads (two-wire 620 VDC nominal) to the proper terminals
according to drive type.
On 1-60 HP drives, connect the D-C input power leads to terminals + and — on the power
terminalstrip.
On 60-150 HP drives, connect the D-C input power leads to terminals 45 and 47.
Note that the maximum discharge rate of the D-C bus supply should be 200V/second.
Step 3. Tighten the D-C input power terminals to the proper torque as shownin table 5.1.
Step 4. On 60-150 HP drives using volts/hertz regulation, set parameter H.017 to a value greater
than one to enable D-C bus operation. Refer to the GV3000 Programming instruction
manual (D2-3339) for additional information.
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