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8 TECHNICAL SPECIFICATIONS
8.1 INVERTER POWER DATA
8.1.1
Input
Inverter smart code - items "IV" and "V"
Suffix number of phases and rated voltage
AC Power Supply
Number of phases (input)
Rated input voltage
Input voltage tolerance
Input frequency
Phase unbalance
Overvoltages / transients
Input rated current
-Three-phase power supply
-Single-phase power supply
Inverter power factor for rated condition
(2)
ND
-Three-phase power supply
-Single-phase power supply
Inverter displacement factor (cos phi)
Harmonic distortion of the input current (THDi)
Maximum number of powerups (network connections)
(4)
Types of power supply
(5)
Efficiency (Efficiency class)
(6) (7)
DC power supply
Input voltage range
Input rated current
(1)
For input voltage in the range 208 ≤ Vin < 220 Vrms the negative tolerance is -10%.
(2)
For the inverter input THDi values, please contact WEG.
(3)
Typical value. Valid only for balanced power supplies.
(4)
For operation on IT networks or networks grounded by high impedance, follow the grounding guidelines of
(5)
Efficiency levels by model can be found in the "WEG Ecodrive" app available for Android and iOS devices.
(6)
For DC power supply, an external pre-charge circuit must be used. Exception: in CFW900 inverters with frames A, B and C, it is possible to
connect the "+" terminal of the DC power supply to the DC+ terminal and the "-" terminal to the R/L1/L and S/L2/N terminals. In this case,
it is not necessary to use an external pre-charge.
(7)
For applications with common DC link, please consult WEG.
Table 8.1: Inverter Input Data
B2
1 or 3
Frames A, B and C: 200...240 Vrms
200 ... 240 Vrms
Frames D and E: 208...240 Vrms
Frame A, B and C: -15%+10%
-15% +10%
Frames D and E: -15% +10%
50/60 Hz (range: 48 ... 63 Hz)
≤3% between line voltages
Category III (EN 61010 / IEC61800-5-1 / UL61800-5-1)
1.1 x Io,nom
2.06 x Io,nom
0.77
0.70
Maximum 1 per minute
Frame Size A: TT / TN / IT (Except grounded by resistor) - slash voltage
Frame Sizes B, C, D, E: TT / TN / IT / Delta earthed - straight voltage
IE2 (IEC61800-9-2 / EN50598-2)
Frames A, B and C: 229....400 Vdc
229....400 Vcc
Frames D and E: 252...400 Vdc
TECHNICAL SPECIFICATIONS
T2
3
380...480 Vrms
-15% +10%
(1)
Io,nom
-
0.93
-
≥0.98
≤ 42% for 75 to 100% of Io,nom
436...800 Vdc
1.15x Io,nom
Section
3.2.4.1.
CFW900 | 95
T4
3
Io,nom
-
0.93
-
(3)
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