Danfoss VLT Micro Drive FC 51 Design Manual page 92

Specifications
Protection and features
•
Electronic thermal motor protection motor protection against overload.
•
Temperature monitoring of the heatsink ensures that the frequency converter trips in case of overtemperature.
•
The frequency converter is protected against short-circuits between motor terminals U, V, W.
•
If a motor phase is missing, the frequency converter trips and issues an alarm.
•
If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
•
Monitoring of the intermediate circuit voltage ensures that the frequency converter trips if the intermediate circuit
voltage is too low or too high.
•
The frequency converter is protected against earth faults on motor terminals U, V, W.
Mains supply (L1/L, L2, L3/N)
Supply voltage
Supply voltage
Supply frequency
Max. imbalance temporary between mains phases
True Power Factor
Displacement Power Factor (cosφ) near unity
Switching on input supply L1/L, L2, L3/N (power-ups)
Environment according to EN60664-1
The unit is suitable for use on a circuit capable of delivering not more than 100.000 RMS symmetrical Amperes, 240/480 V
maximum.
Motor output (U, V, W)
Output voltage
Output frequency
Switching on output
Ramp times
Cable lengths and cross sections
Max. motor cable length, screened/armoured (EMC correct installation)
Max. motor cable length, unscreened/unarmoured
Max. cross section to motor, mains*
Connection to load sharing/brake (M1, M2, M3)
Max. cross section to load sharing/brake (M4, M5)
Maximum cross section to control terminals, rigid wire
Maximum cross section to control terminals, flexible cable
Maximum cross section to control terminals, cable with enclosed core
Minimum cross section to control terminals
* See 9 Specifications for more information!
Digital inputs (pulse/encoder inputs)
Programmable digital inputs (pulse/encoder)
Terminal number
Logic
Voltage level
Voltage level, logic'0' PNP
Voltage level, logic'1' PNP
Voltage level, logic '0' NPN
Voltage level, logic '1' NPN
Maximum voltage on input
Input resistance, R
i
Max. pulse frequency at terminal 33
Min. pulse frequency at terminal 33
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®
VLT Micro Drive FC 51 Design Guide
®
MG02K202 - VLT is a registered Danfoss trademark
200-240 V ±10%
380-480 V ±10%
3.0% of rated supply voltage
≥0.4 nominal at rated load
maximum 2 times/min.
overvoltage category III/pollution degree 2
0-100% of supply voltage
plus
0-200 Hz (VVC ), 0-400 Hz (u/f)
6.3 mm insulated Faston Plugs
16 mm
2
1.5 mm /16 AWG (2x0.75 mm
1 mm
0.5 mm
18, 19, 27, 29, 33,
50/60 Hz
(>0.98)
9 9
Unlimited
0.05-3600 s
15 m
50 m
2
/6 AWG
2
)
2
/18 AWG
2 /20 AWG
2
0.25 mm
5 (1)
PNP or NPN
0-24 V DC
<5 V DC
>10 V DC
>19 V DC
<14 V DC
28 V DC
approx. 4 kΩ
5000 Hz
20 Hz
91