Protection and Features:
•
Electronic thermal motor protection against overload.
•
Temperature monitoring of the heatsink ensures that the adjustable frequency drive trips if the temperature reaches 203°F ± 41°F [95°C ±
5°C]. An overload temperature cannot be reset until the temperature of the heatsink is below 158°F ± 41°F [70°C ± 5°C] (Guideline - these
temperatures may vary for different power sizes, enclosures, etc.). The adjustable frequency drive has an auto derating function to avoid its
heatsink reaching 203°F [95°C].
•
The adjustable frequency drive is protected against short-circuits on motor terminals U, V, W.
•
If a line phase is missing, the adjustable frequency drive trips or issues a warning (depending on the load).
•
Monitoring of the intermediate circuit voltage ensures that the adjustable frequency drive trips if the intermediate circuit voltage is too low or
too high.
•
The adjustable frequency drive is protected against ground faults on motor terminals U, V, W.
Line power supply (L1, L2, L3):
Supply voltage
380–480 V ±10%
Supply voltage
525–690 V ±10%
Supply frequency
50/60 Hz
Max. imbalance temporary between line 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 input supply L1, L2, L3 (power-ups)
≤
enclosure type A
maximum 2 times/min.
Switching on input supply L1, L2, L3 (power-ups)
≥
enclosure type B, C
maximum 1 time/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, 500/600/690 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 VLT AQUA Drive's nominal torque.
Cable lengths and cross-sections:
Max. motor cable length, shielded/armored
VLT AQUA Drive: 492 ft [150 m]
Max. motor cable length, unshielded/unarmored
VLT AQUA 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
0.25 mm
2
* See Line Power Supply tables for more information!
Control card, RS-485 serial communication:
Terminal number
68 (P,TX+, RX+), 69 (N,TX-, RX-)
Terminal number 61
Common for terminals 68 and 69
The RS-485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the supply voltage (PELV).
Digital inputs:
Programmable digital inputs
4 (6)
Terminal number
18, 19, 27
1)
, 29, 32, 33,
Logic
PNP or NPN
VLT
®
AQUA Drive
Instruction Manual
10 Specifications
MG.20.M5.22 - VLT
®
is a registered Danfoss trademark
10-11
10
Содержание vlt aqua
Страница 4: ...Contents VLT AQUA Drive Instruction Manual MG 20 M5 22 VLT is a registered Danfoss trademark...
Страница 12: ...2 Safety VLT AQUA Drive Instruction Manual 2 6 MG 20 M5 22 VLT is a registered Danfoss trademark 2...
Страница 16: ...3 Introduction VLT AQUA Drive Instruction Manual 3 4 MG 20 M5 22 VLT is a registered Danfoss trademark 3...