8.1.2 General specifications:
Line power supply (L1, L2, L3):
Supply voltage 380–480 V ±10%
Supply voltage 525–600 V ±10%
Supply frequency 50/60 Hz ±5%
Max. imbalance temporary between line phases 3.0% of rated supply voltage
True Power Factor () ≥ 0.9 nominal at rated load
Displacement Power Factor (cos) near unity (> 0.98)
Switching on input supply L1, L2, L3 (power-ups) ≤ enclosure type A maximum twice/min.
Switching on input supply L1, L2, L3 (power-ups) ≥ enclosure type B, C maximum once/min.
Switching on input supply L1, L2, L3 (power-ups) ≥ enclosure type D, E 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, 480/600 V maximum.
Motor output (U, V, W):
Output voltage 0–100% of supply voltage
Output frequency 0–1,000 Hz
Switching on output Unlimited
Ramp times 1-3,600 sec.
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 adjustable frequency drive's nominal torque.
Cable lengths and cross-sections:
Max. motor cable length, shielded/armored VLT HVAC Drive: 492 ft [150 m]
Max. motor cable length, unshielded/unarmored VLT HVAC Drive: 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 0.00039 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
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1) Terminals 27 and 29 can also be programmed as output.
VLT
®
HVAC Drive Instruction Manual 8 Specifications
MG.11.A9.22 - VLT
®
is a registered Danfoss trademark
8-15
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