Danfoss VLT Micro Drive FC 51 User Manual

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8 General Technical Data
8.1 Protection and Features
Electronic motor thermal protection against overload.
Temperature monitoring of the heat sink ensures that the drive trips if there is overtemperature.
The drive is protected against short circuits between motor terminals U, V, W.
When a motor phase is missing, the drive trips and issues an alarm.
When a mains phase is missing, the drive trips or issues a warning (depending on the load).
Monitoring of the DC-link voltage ensures that the drive trips when the DC-link voltage is too low or too high.
The drive is protected against ground faults on motor terminals U, V, W.
8.2 Mains Supply (L1/L, L2, L3/N)
Mains supply (L1/L, L2, L3/N)
Supply voltage
200–240 V ±10%
Supply voltage
380–480 V ±10%
Supply frequency
50/60 Hz
Maximum imbalance temporary between mains phases
3.0% of rated supply voltage
True power factor
≥0.4 nominal at rated load
Displacement power factor (cosφ) near unity
(>0.98)
Switching on input supply L1/L, L2, L3/N (power-ups)
Maximum 2 times/minute
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 100000 RMS symmetrical Amperes, 240/480 V maximum.
8.3 Motor Output (U, V, W)
Output voltage
0–100% of supply voltage
Output frequency
0–200 Hz (VVC
+
), 0–400 Hz (u/f )
Switching on output
Unlimited
Ramp times
0.05–3600 s
8.4 Cable Length and Cross-section
Maximum motor cable length, shielded/armored (EMC-correct in-
stallation)
15 m (49 ft)
Maximum motor cable length, unshielded/unarmored
50 m (164 ft)
Maximum cross-section to motor, mains
See chapter Specications for more information.
Connection to load sharing/brake (M1, M2, M3)
6.3 mm insulated Faston plugs
Maximum cross-section to load sharing/brake (M4, M5)
16 mm
2
/6 AWG
Maximum cross-section to control terminals, rigid wire
1.5 mm
2
/16 AWG (2x0.75 mm
2
)
Maximum cross-section to control terminals, exible cable
1 mm
2
/18 AWG
Maximum cross-section to control terminals, cable with enclosed
core
0.5 mm
2
/20 AWG
Minimum cross-section to control terminals
0.25 mm
2
/24 AWG
8.5 Digital Inputs (Pulse/encoder Inputs)
Programmable digital inputs (pulse/encoder)
5 (1)
Terminal number
18, 19, 27, 29, 33
Logic
PNP or NPN
Voltage level
0–24 V DC
AQ348848915086en-000101 / 130R0943 | 29Danfoss A/S © 2020.09
General Technical Data
VLT® Micro Drive FC 51
Operating Guide

Danfoss VLT Micro Drive FC 51 Specifications

General

Brand	Danfoss
Model	VLT Micro Drive FC 51
Category	DC Drives
Language	English