Nastec HMA 218, Руководство по эксплуатации

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7. Protections and alarms
Anytime a protection occurs a blinking message is displayed together with an audible alarm; on STATUS in the initial view, the
protection is displayed; by pressing AC or DC button, only from this position (STATUS) in the initial view, is it possible to try to
reset the alarm; if HMA does not reset the alarm it is displayed again together with an audible sound.
Alarm message Alarm description Possible solutions
LOW BATTERY
The internal battery voltage is lower
than the minimum allowed
threshold.
Keep the HMA powered by one of the two power
sources for at least two hours and if the alarm
persists, contact the technical service.
5V OVER CURRENT
5V power supply overload (greater
than 1 A). Remove the load connected to the 5V supply and
check the causes of excessive absorption.
OVER TEMP. PCB
Overtemperature of the electronic
board. Check that the ambient temperature is below the
maximum allowed.
OVER VOLTAGE
Overvoltage in DC power supply.
Check the causes of overvoltage.
AC CLOSING FAULT
Failure to detect closure of the AC
contactor. Check the wiring of contactor.
Check the function of the contactor.
DC CLOSING FAULT
Failure to detect closing of the DC
contactor.
Check the wiring of contactor.
Check the function of the contactor.
AC OPEN. FAULT
Failure to detect opening of AC
contactor.
Check the wiring of contactor.
Check the function of the contactor.
DC OPEN. FAULT
Failure to detect opening of DC
contactor. Check the wiring of contactor.
Check the function of the contactor.
GENERATOR FAULT
Opening or closing of digital input 3
detected.
Check the correct configuration of the digital input 3.
Check the wiring to the digital input 3.
Check the generator.
GEN. FUEL. LACK
Opening or closing of the digital
input 4 detected.
Check the correct configuration of the digital input 4.
Check the wiring to the digital input 4.
Check the fuel level in the generator.
NO COMM.INVERTER
Lack of communication between the
HMA and the device powered by it.
Check if the device is powered.
Check the COMBO serial wiring.
Check the device power supply wiring.