Troubleshoot - WEG EA05A-WG Manual De Instalación Y Operación

7. TROUBLESHOOT

SYMPTOM
Voltage does not build up
Out voltage low
Fuse blown
Out voltage high
Out voltage instable
220V/50HZ
ON OFF
ON
1 2 3
120
100
80
60
40
20
0
10
FREQUENCY (HZ)
Figure 2 Frequency Compensation Curves
NOTE
1. Use type 5 x 20mm S505-5A fuse for replacement.
2.
Specifications and appearance are for reference only and are subject to change without prior notice.
CAUSE
Engine speed is too low.
Residual voltage is too low.
F+, F– wires are inverted.
Defective Generator.
The input wiring of E1/E2,3,E3/4 are not correct.
Check the external potentiometer.
Under frequency.
The exciter does not match the AVR.
Voltage / frequency setting is incorrect.
Excessive excitation current.
A,C terminals are not connect or wiring incorrect.
The voltage / frequency selector setting incorrect.
Stability Adjustment doesn't adjust well.
277V/50HZ
220V/60HZ
ON ON
1 2 3 1 2 3
Figure 1 DIP switch selection for voltage and frequency
60HZ
50HZ
40 50
30
20
380V/50HZ
277V/60HZ
ON ON
1 2 3 1 2 3
120
100
80
60
40
20
60 0
SOFT START (V/S)
Figure 3 Soft Start Curve
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CORRECTION
Refer to the Generator Manual.
Refer to section 6. FIELD FLASHING.
Invert F+, F–.
Refer to the Generator Manual.
Refer to Figure 5 - Figure 9.
Check wiring and potentiometer.
Refer to the Generator Manual.
Refer to the Generator Manual.
Refer to Figure 1. DIP switch setting
Refer to the Generator Manual.
Refer to Figure 5 - Figure 9.
Refer to Figure 5 - Figure 9.
Refer to Figure 1. DIP switch setting
Refer to Section 5.
440V/50HZ
380V/60HZ
ON ON
1 2 3 1 2 3
1
Automatic Voltage Regulator
440V/60HZ
ON
1 2 3
2
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