Determining Connections And Settings For Avrs - DEEP SEA ELECTRONICS DSE8610 MKII Operator's Manual

8.2.1.2

DETERMINING CONNECTIONS AND SETTINGS FOR AVRS

NOTE: Determining the settings of SW1 and SW2 for the AVR MUST only be done once the
setup for SW1 and SW2 for the governor has been complete. Changing engine speed affects
the level of voltage produced.
Before You Start
Ensure that generator bus is not live, has no load connected, the other generator's breakers are
1.
open, and the Voltage Droop function and Mains Parallel Mode digital input within the module are
disabled.
2. With the generator breaker open, set the generator to run at the Nominal Voltage without the DSE
module connected to the AVR. To achieve this, you will have to adjust the settings on the AVR.
3. Stop the generator and connect the DSE module to the AVR. The DSE controller connects only to
the "-" and "IN" terminals and provides the varying DC voltage to simulate the turning of a
potentiometer. The Analogue output terminals of the DSE controller are connected as follows. Note
that the "+" terminal of the AVR is left unconnected
4. With the generator stationary, adjust the AVR SW1 setting to 10 and measure the voltage across
the "-" and "IN" AVR terminals. Assuming the sensing probes had the correct polarity, the voltage
across the "-" and "IN" AVR terminals should be roughly +5 V. If this is not the case, check the
polarity of the wiring and sensing probes.
5. Once successful, reset the AVR SW1 setting back to 0.
Adjustment of AVR SW1
6. Start the generator and ensure that the breaker is left open.
7. Check the direction of drive by increasing and decreasing SW1. If the voltage increases whilst
SW1 is being decreased tick the option 'Output Reversed'. If moving SW1 does not change the
voltage, check the wiring to the AVR for faults.
8. Adjust the SW1 setting for the AVR until the generator runs at Nominal Voltage (230V for
example).
9. Stop the generator. SW1 is now complete and must not be adjusted further.
Commissioning
.
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