WEG CFW500 - 8 Technical Specifications; Power Data; Electronics;General Data

44 | CFW500
Technical Specifications
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8 TECHNICAL SPECIFICATIONS
8.1 POWER DATA
Power Supply:
 Voltage Tolerance: -15 % to +10 % of nominal voltage.
 Frequency: 50/60 Hz (48 Hz to 62 Hz).
 Phase imbalance: ≤ 3 % of the rated phase-to-phase input voltage.
 Overvoltage according to Category III (IEC/EN 61010/UL 508C).
 Transient voltage according to Category III.
 Maximum of 10 connections (power up cycles - ON/OFF) per hour (1 every 6 minutes).
 Typical efficiency: ≥ 97 %.
For further information about the technical specifications, refer to APPENDIX B - TECHNICAL
SPECIFICATIONS on page 157.
8.2 ELECTRONICS/GENERAL DATA
Table 8.1: Electronics/general data
Control Method  Type of control:
- V/f (Scalar)
- VVW: Voltage vector control
- Vector control with encoder
- Sensorless vector control (without encoder)
 PWM SVM (Space Vector Modulation)
Output
frequency
 0 to 500 Hz, resolution of 0.015 Hz
Performance Speed Control V/f (Scalar):
 Regulation (with slip compensation): 1 % of the rated speed
 Speed variation range: 1:20
VVW:
 Regulation: 1 % of the rated speed
 Speed variation range: 1:30
Sensorless:
 Regulation: 0.5 % of the rated speed
 Speed variation range: 1:100
Vector with Encoder:
 Regulation 0.1 % of the rated speed with a digital reference
(keypad, serial, fieldbus, Electronic Potentiometer, Multispeed)
Torque Control  Range: 10 to 180 %, regulation: ±5 % of the rated torque (with
encoder).
 Range: 20 to 180 %, regulation: ±10 % of the rated torque
(sensorless above 3 Hz).