Mains Supply To Drive Modules; Motor Output; Torque Characteristics; Ambient Conditions For Drive Modules - Danfoss VLT Ea4 Operating Manual

VLT Ea4 Parallel Drive Modules
Operating Guide

7.2 Mains Supply to Drive Modules

The unit is suitable for use on a circuit capable of delivering not more than 100 kA short circuit current rating (SCCR) at 480 V.
Supply terminals
Supply voltage
(1)
Supply frequency
Maximum imbalance temporary between mains phases
True power factor (λ)
Displacement power factor (cos Φ)
Switching on the input supply L1, L2, and L3 (power-ups)
Environment according to EN 60664-1
Mains voltage low/mains drop-out: During low mains voltage or a mains dropout, the drive continues until the DC-link voltage drops below the
1
minimum stop level, which corresponds typically to 15% below the drive's lowest rated supply voltage. Power-up and full torque cannot be expec-
ted at mains voltage lower than 10% below the drive's lowest rated supply voltage.
Calculations based on UL/IEC 61800-3.
2

7.3 Motor Output

Voltage output
Output frequency
Output frequency in flux mode
Switching on output
Ramp times
Dependent on voltage and power.
1

7.4 Torque Characteristics

The torque response time depends on application and load but as a rule, the torque step from 0 to reference is 4–5 x torque rise
time.
Starting torque (constant torque)
Overload torque (constant torque)
Torque rise time in FLUX (for 5 kHz fsw)
Torque rise time in VVC+ (independent of fsw)
Percentage relates to the drive's nominal current.
1

7.5 Ambient Conditions for Drive Modules

Enclosure
Vibration test (standard/ruggedized)
Relative humidity
Aggressive environment (IEC 60068-2-43) H
Aggressive gases (IEC 60721-3-3)
Test method according to IEC 60068-2-43
Ambient temperature at SFAVM switching mode
- with derating
- at full continuous FC output current (HO)
- at full continuous FC output current (NO)
Minimum ambient temperature during full-scale operation
Minimum ambient temperature at reduced speed performance
68 | Danfoss A/S © 2023.01
5%-95% (IEC 721-3-3; Class 3K3 (non-condensing) during opera-
S test
2
3.0% of rated supply voltage
≥0.9 nominal at rated load
Near unity (>0.98)
Maximum 1 time/2 minutes
Overvoltage category III/pollution degree 2
0–100% of supply voltage output
Maximum 150% for 60 s once in 10 minutes
Maximum 150% for 60 s once in 10 minutes
IP00/UL Type Chassis
Maximum 55 °C (131 °F)
Maximum 45 °C (113 °F)
Maximum 40 °C (104 °F)
AQ434333248451en-000101 / 130R1286
Specifications
L1, L2, L3
380–500 V ±10%
50/60 Hz ±5%
(2)
0–590 Hz
(1)
0–300 Hz
Unlimited
0.01–3600 s
(1)
(1)
1 ms
10 ms
0.7 g/1.0 g
tion)
Class Kd
Class 3C3
H2S (10 days)
(1)
(1)
(1)
0 °C (32 °F)
-10 °C (14 °F)