Technical Specifications; Power Data; Electrical/General Specifications - WEG CFW700 Manual Del Usuario

Technical Specifications

8 TECHNICAL SPECIFICATIONS

8.1 POWER DATA

Power Supply:
Maximum rated voltage: 240 V for 200...240 V models, 230 V for 220-230 V models and
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480 V for 380...480 V models up to 2000 m height. It is necessary to apply 1.1 % voltage
derating every 100 m above 2000 m, limited to 4000 m.
Voltage tolerance: -15 % to +10 %.
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Frequency: 50/60 Hz (48 Hz to 62 Hz).
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Phase imbalance: ≤3 % of the rated phase-to-phase input voltage.
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Overvoltage according to Category III (EN 61010/UL 508C).
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Transient voltage according to Category III.
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Maximum of 60 connections per hour (1 per minute).
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Typical efficiency: ≥ 97 %.
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Typical input power factor:
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- 0.94 for three-phase power supply models in the rated conditions.
- 0.70 for single-phase power supply models in the rated conditions.
Refer to Appendix B for more information about the technical specifications.

8.2 ELECTRICAL/GENERAL SPECIFICATIONS

CONTROL METHOD
OUTPUT
FREQUENCY
PERFORMANCE SPEED
CONTROL
48 | CFW700
Table 8.1: Electrical/general specifications
Voltage source.
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Type of control:
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- V/f (Scalar).
- V V W: Voltage Vector Control.
- Vector control with encoder.
- Sensorless vector control (without encoder).
PWM SVM (Space Vector Modulation).
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Full digital (software) current, flux, and speed regulators.
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Execution rate:
- current regulators: 0.2 ms (5 kHz);
- flux regulator: 0.4 ms (2.5 kHz).
- speed regulator / speed measurement: 1.2 ms.
0 to 3.4 x rated motor frequency (P0403). The rated motor frequency
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is programmable from 0 Hz to 300 Hz in the V/f and V V W modes
and from 30 Hz to 120 Hz in the vector mode.
Maximum output frequency limit according to the switching frequency:
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- 125 Hz (switching frequency = 1.25 kHz);
- 250 Hz (switching frequency = 2.5 kHz);
- 500 Hz (switching frequency ≥ 5 kHz).
V/f (Scalar):
Regulation (with slip compensation): 1 % of the rated speed.
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Speed variation range: 1:20.
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V V W:
Regulation: 1 % of the rated speed.
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Speed variation range: 1:30.
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Sensorless:
Regulation: 0.5 % of the rated speed.
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Speed variation range: 1:100.
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Vector with Encoder:
Regulation:
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- ±0.1 % of the rated speed with a digital reference (Keypad, Serial,
Fieldbus, Electronic Potentiometer, Multispeed);
- ±0.2 % of the rated speed with a 12-bits analog input.