Danfoss VLT Ea4, Руководство по эксплуатации

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3.
4.
5.
1.
2.
3.
4.
5.
Connect the ground wire to the nearest grounding terminal in accordance with the grounding instructions. See 5.6 Ground
Connections .
Connect the 3-phase motor wiring to terminals 96 (U), 97 (V), and 98 (W).
Tighten the terminals fasteners. See
4.1 Fastener Torque Ratings .
5.9 Connecting to the AC Mains
Comply with local and national electrical codes for cable sizes. See 7.1 Electrical Data, 380–500 V AC .
N O T I C E
SUPPLY SIDE FUSES
Fuses installed on the supply side ensure that if a component breakdown (first fault) occurs inside the drive module, any potential
damage is contained inside the drive enclosure. Each drive module is provided with fast-acting semiconductor fuses on the sup-
ply side for protection of the drive module.
N O T I C E
MULTIPLE MAINS CABLES
If connecting more than 1 set of mains terminals, use the same number, size, and length of cables for each set of terminals. For
example, do not use 1 cable on one mains terminal and 2 cables on another mains terminal.
Procedure
Strip a section of the outer cable insulation.
Establish mechanical fixation and electrical contact between the cable shield and ground by positioning the stripped wire
under the cable clamp.
Connect the 3-phase AC input power wiring to terminals R, S, and T.
Tighten the terminals fasteners. See
4.1 Fastener Torque Ratings .
When supplied from an isolated mains source (IT mains or floating delta) or TT/TN-S mains with a grounded leg (grounded
delta), ensure that
parameter 14-50 RFI Filter is set to [0] Off to avoid damage to the DC link and to reduce ground capacity
currents.
AQ434333248451en-000101 / 130R1286 28 | Danfoss A/S © 2023.01
Electrical Installation
VLT Ea4 Parallel Drive Modules
Operating Guide