______________________________________________________________________________________
4
EA16
6. Over Excitation Protection
：
●
This AVR has over Excitation Protection
preventing the generator from working under
unusually high excitation. Excitation Protection
includes generator overload, accident removal of
sensing wires, and incorrect voltage setting.
When problems occur, the AVR will gradually
shutdown the excitation voltage to the minimum
residual voltage. If the O/E LED turn ON and
stays ON, you need to reset the AVR by shutting
the engine for 10 seconds. When working the
generator in parallel this protection is not required,
the user can disable this function by switching
DIP switch SW4 to ON position, vice versa.
4. NOTICE OF USE
1. Installation Notice
：
(Refer to Figure 2 and 4).
●
Only, a trained professional can Installation,
calibrate and inspections this AVR.
●
Install this AVR inside the generator enclosure
away from moisture, corrosion and from any easy
to reach area.
2. Generator Operation Notice
：
●
During operation, the temperature on the surface
of the AVR can reach higher the 60
°
C / 140
°
F.
●
“DANGER” When the AVR is working never
touch or ground the heat sink on the AVR. The
AVR heat sink is an electrically live terminal.
A warning sticker is in place on top of the heat
sink.
5. FIELD FLASHING
When operating this AVR for the first time, the
polarity of the residual magnetism may be reversed
or too weak to achieve the necessary build-up on
the regulator. If reversing the field connections does
not induce build-up, and the residual voltage is less
than 5 VAC, shut down the Prime-mover and
proceed with the following steps
：
1. Stop the generator and disconnect the field wires
(F+ and F
−
), apply a DC Voltage using a
batteries positive terminal to F+ and the negative
terminal to F
−
, using a current-limiting resistor of
3~5 ohms 20 watt.
2. Allow approximately 3 seconds before removing
the battery.
3. Disconnect the AVR AC power input terminals
and restart the generator, re-measure the
residual voltage. If this voltage is greater than
5VAC, reconnect voltage regulator, and voltage
build-up should be successful. If measured less
than 5VAC, repeat steps 5.1 and 5.2.
4. If repeating steps 5.1 and 5.2 does not result in
generator voltage build-up, and residual is
greater than 5VAC, replace with a new voltage
regulator.
CAUTION
Over excite may damage the AVR or the
exciter.
