paco MCD-500VA Instruction Manual page 7

7. LOW & HIGH VOLTAGE PROTECTION
When output voltage is lower or higher than labeled voltage, AVR will turn
into self-protection state automatically ,the UNUSUAL RED indicator
flashes every one second and output voltage will be cut off.
When output voltage comply with labeled voltage, AVR will go into
automatic recovering state, the UNUSUAL RED indicator extinguishes.
Then DELAYING ORANGE indicator flashes every one second, the
system goes into delaying state. After delay, DELAYING ORANGE
indicator extinguishes and output voltage resume .
8. THERMAL PROTECTION
When the temperature of the transformer exceeds 130℃+/-5% , the
system will automatically turn into self-protection state, UNUSUAL RED
indicator will flash every one second and output voltage shut down. While
temperature is lower 70℃+/-5% , the system will recover automatically.
UNUSUAL RED indicator will extinguish, and output resume.
NOTE: No overheating Protection is equipped in standard configuration,
users should notify manufacturer and take special order if this function
is required.
9.OVERLOAD PROTECTION
When avr is overload, the system will turn into self-protection, red led
indicator will illuminate continuously and there is no output. To resume
the output, you should lessen the load and then restar the unit.
NOTE: This function only suitable for 3KVA / 5KVA
NOTE: No overload Protection is equipped in standard configuration,
users should notify manufacturer and take special order if this function
is required.
10. WITH COOLING FAN
When the temperature of transformer excessed 90℃+/-5%, the cooling
fan will switch on automatically to low down inside temperature and will
stop working while the temperature comes down.
NOTE: This function only suitable for 3KVA , 5KVA
11. OUTPUT CAPACITY
The automatic voltage regulator will switch off automatically if the total
wattage of the electrical appliances exceed the automatic voltage
regulator output capacity.
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