Connecting The Regulator - Sincro SK 400 Manuale Di Uso E Manutenzione

6.4.4.2 Connecting the regulator

Five position faston terminal
• PE - Earth Connection
• L, N - Power AVR (made with an auxiliary winding in the
stator, or integrated with a PMG)
• Ex +, Ex - Power Exciter stator.
Nine position faston terminal
• A, B, C: The reference voltage can be single or three
phase. For the reference voltage threephase use all three
connectors, single-use reference to either terminal A or B
while the C terminal is always connected.
• S3, S4: on these two connectors, you can apply a
potentiometer (20 kΩ, ½ W) to adjust the voltage (place
the jumper (J6) in the position Pot). To set S3 and S4 as
analog input (0 to 3 Vdc, 0 ÷ 5 Vdc, 0 to 10 Vdc), place
the jumper (J6) in the position Volt.
• To calibrate the voltage range under the condition of the
analog signal, turn the trimmer fully counterclockwise in
V (the voltage of the alternator will be at the minimum
value)
• Apply on the connectors S3 and S4 half of the maximum
value of the analog signal, with the trimmer calibrating the
voltage V. Example: Analog signal 0 to 5 V, to adjust to 400
V, applied to S3 and S4 a signal of 2.5 V (+2.5 V = S3, S4 =
0 V) with V trimmer to adjust the alternator voltage of 400 V.
Terminals D-, D + and Vb are used for connecting the
controller with the software AVRTerm.
Jumpers
• The jumper J1-J2-J3-J4 identify the frequency of rotation of
the machine, the voltage to be monitored by the regulator
and the type of sensing, single or three phase (refer to
table below).
• Jumper J5: select the system to feed the AVR.
• Jumper J6: select VOLT / pot (analogic input / external
potentiometer).
•
Trimmer
Trimmer
• V: Voltage adjustment or adjustment analogic input
control.
• S: Stability adjustment.
According to the voltage and frequency, the AVR must be
confi gured as a side table:
AVR SENSING JUMPERS CONFIGURATIONS
J1 J2 J3
• •
• •
• •
• •
• •
• •
• • • •
• •
If the voltage is set any higher than its
maximum limit the generator may be
damaged.
CAUTION!
Further adjustments are possible with use the AVR TERM
software.
ENGLISH
VOLTAGE
J4
PHASES
/ FREQ.
50Hz
60Hz
400V 3p
• •
430V 3p
230V 3p
• •
115V 3p
400V 1p
280V 1p
230V 1p
• •
115V 1p
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