8 General Specifications
Line power supply (L1, L2, L3):
Supply voltage
380–480 V +5%
AC line voltage low / line drop-out:
During low AC line voltage or a line drop-out, the adjustable frequency drive continues until the intermediate circuit voltage drops below the minimum
stop level, which corresponds typically to 15% below the adjustable frequency drive's lowest rated supply voltage. Power-up and full torque cannot be
expected at AC line voltage lower than 10% below the adjustable frequency drive's lowest rated supply voltage.
Supply frequency
50/60 Hz ±5%
Max. imbalance temporary between line phases
3.0% of rated supply voltage
True Power Factor (
λ
)
> 0.98 nominal at rated load
Displacement Power Factor (cos
φ
) near unity
(> 0.98)
THiD
< 5%
Switching on input supply L1, L2, L3 (power-ups)
maximum once/2 min.
Environment according to EN60664-1
overvoltage category III / pollution degree 2
The unit is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical Amperes, 480/690 V maximum.
Motor output (U, V, W):
Output voltage
0–100% of supply voltage
Output frequency
0–800* Hz
Switching on output
Unlimited
Ramp times
1–3600 sec.
* Voltage and power dependent
Torque characteristics:
Starting torque (Constant torque)
maximum 110% for 1 min.
*
Starting torque
maximum 135% up to 0.5 sec.
*
Overload torque (Constant torque)
maximum 110% for 1 min.
*
*Percentage relates to the nominal torque of the adjustable frequency drive.
Cable lengths and cross-sections:
Max. motor cable length, shielded/armored
492 ft [150 m]
Max. motor cable length, unshielded/unarmored
984 ft [300 m]
Max. cross-section to motor, line power, load sharing and brake *
Maximum cross-section to control terminals, rigid wire
0.0023 in
2
[1.5 mm
2
]/16 AWG (2 x 0.00112
2
in [0.75 mm
2
])
Maximum cross-section to control terminals, flexible cable
0.0016 in
2
[1 mm
2
]/18 AWG
Maximum cross-section to control terminals, cable with enclosed core
0.0008 in
2
[0.5 mm
2
]/20 AWG
Minimum cross-section to control terminals
0.039 in
2
[0.25 mm
2
]
* See Line Power Supply tables for more information!
Digital inputs:
Programmable digital inputs
4 (6)
Terminal number
18, 19, 27
1)
, 29
1)
, 32, 33,
Logic
PNP or NPN
Voltage level
0–24 V DC
Voltage level, logic'0' PNP
< 5 V DC
Voltage level, logic'1' PNP
> 10 V DC
Voltage level, logic '0' NPN
> 19 V DC
Voltage level, logic '1' NPN
< 14 V DC
Maximum voltage on input
28 V DC
Input resistance, R
i
approx. 4 k
Ω
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
VLT HVAC Low Harmonic Drive Instruction
Manual
8 General Specifications
MG.16.A1.22 - VLT
®
is a registered Danfoss trademark
8-1
8