Avr Check; Instructions; Voltage Setting; Relay Output - Deif AGC 200 Series General Manuallines For Commissioning

General guidelines for commissioning
4189340703 UK

6. AVR check

6.1 Instructions

6.1.1 Instructions
Even if the AVR is adjusted by the genset manufacturer, it is necessary to go through the following adjust-
ments in order to be sure that the Multi-line 2 can operate with the AVR.
The AVR should be tuned in according to the AVR/generator manufacturer's instructions. It is imperative that
the genset is able to operate smoothly, before the control function of the Multi-line 2 is activated.

6.2 Voltage setting

6.2.1 Voltage setting
An initial voltage level setting must be made.
The voltage level setting procedure is depending on the interfacing.

6.2.2 Relay output

● Disable the outputs from the Multi-line 2.
● Run the generator with no load (open generator breaker).
● Adjust the voltage (on the AVR) to be nominal voltage.

6.2.3 Analogue output

The analogue output is a +/-25 mA or 0-20 mA (depending on option) signal which in most cases has to be
converted into a voltage using a resistor across the terminals (150 Ω gives 3V DC at 20 mA etc).
The AGC 200 series has no analogue outputs. If analogue outputs are needed, the IOM 200 series external
interface unit must be used.
Given the fact that especially the AVRs are sensitive to the external circuit impedance, it is essential to carry
out the initial setting of the AVR while the Multi-line 2 is connected and the control function disabled.
Putting the Multi-line 2 in manual operation, (AGC 200/AGC-3/AGC-4 = MAN, PPM = switchboard control)
disables the control function. This will 'disable' the control outputs, but the generator protection is still active. If
you fail to do this, you may experience control problems later on.
● Set the unit in manual operation/switchboard control.
● Reboot the unit or activate the input "reset analogue controller outputs".
● Run the generator with no load (open generator breaker).
● Set the voltage (on the AVR) to be nominal voltage.

6.3 Voltage droop

6.3.1 Voltage droop
The AVR controls the generator voltage in a way which is comparable to the speed governor controlling the
prime mover speed.
DEIF A/S
AVR check
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