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EP20-XXXXX-XXX-XXX (en)
6.3. VFD AC Mains – Input Power Requirements:
Supply terminals (6-pulse)
L1, L2, L3
Supply voltage
(1)(2)
380 – 500 V +/- 10%
Supply frequency
47.5 – 63 Hz
Maximum imbalance temporary between mains phases
3.0% of rated supply voltage
True power factor (λ)
≥ 0.9 nominal at rated load
Displacement power factor (cos Φ)
Near unity (> 0.98)
Switching on the input supply L1, L2, L3 (power - ups) ≤ 7.5 kW (10 hp)
Maximum twice per minute
1. Mains voltage low/mains dropout: During low mains voltage or a mains dropout, the drive continues until the DC-link voltage drops below the min-
imum stop level, which typically corresponds to 15% below the drive’s lowest rated supply voltage. Power-up and full torque cannot be expected at
mains voltage lower than 10% below the drive’s lowest rated supply voltage.
2. The unit is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical Amperes, 240/500/600 V maximum.
6.4. Power Wiring
6.4.1 VFD - Input Power Wiring
Size the wiring based on the input current of the drive (see page 3). The maximum cable cross section, per table 8.1.4 from
VFD manual, is 4mm^2 (12 AWG).
Comply with local and national electrical codes for cable sizes.
Cable glands should be selected to match the cable diameter and to maintain the IP / Nema rating of the VFD.
Connect the 3-phase AC input power wiring to terminals L1, L2, and L3.
Ground the cable in accordance with the grounding instructions, see 4.3 Grounding and 4.5.1 Grounding the Cable Shield
in VFD manual.
When supplied from an isolated mains source (IT mains or floating delta) or TT / TN-S mains with a grounded leg (ground-
ed delta), ensure that parameter 14-50 RFI Filter is set to [0] Off. This setting prevents damage to the DC link and reduces
ground capacity currents in accordance with IEC 61800-3.
6.4.2. VFD - Output Motor Wiring
Use shielded cables.
Size the wiring based on the full load current of the motor (see page 4). The maximum cable cross section, per table 8.1.4
from VFD manual, is 4mm^2 (12 AWG).
Cable glands should be selected to match the cable diameter and to maintain the IP/Nema rating of the VFD.
Comply with local and national electrical codes for cable sizes.
Strip a section of the outer cable insulation.
Position the stripped wire under the cable clamp to establish mechanical fixation and electrical contact between the cable
shield and ground.
Connect the ground wire to the nearest grounding terminal in accordance with the grounding instructions, Refer to sec-
tion 7.2 for Grounding.
Connect the 3-phase motor wiring to terminals 96 (U), 97 (V), and 98 (W).
Do not wire a starting or pole-changing device (for example a Dahlander motor or slip ring asynchronous motor) between
the drive and the motor.
Ensure 2 Phases are inverted between the VFD and the motor (as shown by schematic below) to ensure proper rotation
direction of the motor. If motor direction is not wired correctly, VFD Alarm 61 (Feedback Error) will trip at startup. If this oc-
curs, swap any two phases, reset the alarm and restart the motor.
99(PE)
91(L1)
92(L2)
93(L3)
95(PE)
3-PHASE
POWER
INPUT
U2
V2
W2
U1
V1
W1
96(U)
97(V)
98(W)
MOTOR
VFD
