Marathon Electric DVR 2000E - Section 8 • Set-Up Procedures; SET-UP from the Front Panel

S
ection
8
47
SECTION 8 • DVR
®
2000E VOLTAGE REGULATOR
SET-UP FROM THE FRONT PANEL
PROCEDURE
The regulator must be powered from an external source into terminals 3 and 4. This power can be from the
generator PMG with the engine running or a 120 Vac wall outlet. Ground the regulator with the ground terminal.
No other wires should be connected to the regulator at this time.
Before terminals 3 and 4 on the voltage regulator are connected to the PMG, the engine must be set for
1800 RPM for 60 Hz operation or 1500 RPM for 50 Hz operation. If the engine speed goes high the PMG
voltage will also go high, which can damage the voltage regulator.
When power is applied to the regulator,
LED 2, ‘Loss of Sensing’
should be blinking.
When the regulator is started up, it is in the operating mode and blinking LEDs relate to the operating
‘MODE
STATUS’
. When the
‘SELECT’
button is pressed, the regulator is in the adjustment mode and the blinking LED
relates to the
‘AD
JUSTMENTS’
mode legends. The steady on LED indicates the setting for the mode being
adjusted.
1.) Press the
‘SELECT’
button one time.
LED 1, ‘Coarse Voltage’
should now be blinking and no other LED should be blinking. (A second LED
may be on continuously).
Use the
‘UP’
and
‘D
OWN’
buttons to move the steady on LED to the approximate desired voltage. This
is the voltage that will be seen at the regulator sensing terminals and is not necessarily the generator
line voltage.
Note: Table 2-4 give
s a complete listing. Common s
ettings are identifi ed
below:
Common Voltage
Settings
Steady
LED
120
None
240
4
380
7
416
8
480
10
Note: Ea
ch push of the
‘UP’
or
‘DOWN’
button will change the generator voltage by 6 volts. Each LED
has a range of 41
volts over which the regulator can be operati
ng
.
2.) Press the
‘SELECT’
button one time.
LED 2, ‘1 - 3 Phase Sensing’
should now be
blinking.
Use the
‘UP’
and
‘DOWN’
buttons to move the steady LED to
‘1
’
for single phase sen
sing or
‘3’
for thr
ee
phase sensing.