Electrical/General Specifications - WEG CFW700 Manual Del Usuario

8.2 ELECTRICAL/GENERAL SPECIFICATIONS

CONTROL METHOD
OUTPUT
FREQUENCY
PERFORMANCE SPEED
CONTROL
PERFORMANCE TORQUE
CONTROL
USER'S POWER REF
SUPPLIES (XC1:21-24)
(CC700 board)
+5V-ENC
(XC1:1-8)
+24 V
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
„
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:
„
- 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.
„
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.
Range: 10 to 180 %, regulation: ±5 % of the rated torque (with encoder).
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Range: 20 to 180 %, regulation: ±10 % of the rated torque (sensorless
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above 3 Hz).
10 V ± 10 % power supply to be used with the potentiometer at the
„
analog inputs.
Maximum output current: 2 mA.
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5 V ± 5 % power supply for the encoder.
„
Maximum output current: 160 mA.
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24 V ± 10 % power supply to be used with the digital inputs/outputs.
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Maximum output current: 500 mA.
„
Technical Specifications
CFW700 | 61