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12 IDENTIFICATION OF CONNECTION TERMINALS
E1:
Sensing Voltage (160 up to 300Vac).
E2:
Voltage (320 up to 600Vac).
3:
Power supply.
E3/4:
Sensing Voltage.
S1:
Connection for pole S1 of the CT.
S2/5A: Connection for pole S2 of the CT, ratio In/5A.
S2/1A: Connection for pole S2 of the CT, ratio In/1A.
6 e 7:
Connection for potentiometer 5kΩ/3W.
F+, F-: Connection for alternator field.
J1:
Jumper 50 Hz or 60 Hz.
A+, A-: Analog input voltage ±10 Vdc.
13 DIAGRAM FOR TEST WITHOUT ALTERNATOR
Below is the diagram for regulator connection on the bench where the equipment operation may be verified before
connection to the alternator.
Material required:
- 1 Small screwdriver;
- 1 Incandescent lamp;
- 1 Lamp socket;
- 1 Bipolar breaker (5A recommended);
- 1 Extension cable;
- 1 Power Plug 220 Vac.
NOTE
1. After performance of such steps as per the procedure the equipment must be sent for evaluation by WEG
technical support.
1º. Assemble the circuit according to the diagram in figure 13.1;
2º. With small screwdriver, turn trimpots Vad and U/F counterclockwise until the end of stroke;
3º. Turn on circuit breaker:
4º. Turn slightly the trimpot Vad clockwise (the lamp must shine after certain position of trimpot)
5º. With lamp on, turn slightly the trimpot Vad counterclockwise (after certain position of trimpot, the lamp must turn off);
6º. Turn off the circuit breaker.
Figure 13.1: Test diagram
Automatic Voltage Regulator – GRT7-TH4E / GRT7-TH4PE l 17
www.weg.net
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