Three Phase Output (DC to AC) Inverter
Users Manual
Ver1.2 PAGE :
Alarm and warning messages are displayed timely on the LCD display. Audible alarm is also
provided at the mean time.
Possible alarm and warning messages are listed below.
Indicates that the inverter input voltage is lower than the adjustable DC
LOW value. System continues to operate.
Indicates that the inverter input voltage is higher than the adjustable DC
HIGH value. System continues to operate. In this case, the equipment will
stop generating DC to prevent any damage to batteries or load.
Indicates that the inverter input voltage is lower than the adjustable DC TOO
LOW value. In this case, the equipment will stop generating AC to prevent
any damage to the input source, possibly batteries. (battery deep discharge
cutoff)
Indicates that the inverter bridge temperature has exceeded limits. The
equipment will stop generating AC.
Indicates that the current of IGBT or IPM transistor of 3 phase inverter
bridge, has exceeded the limits. To protect the IGBT / IPM, the equipment
will stop generating AC.
Indicates, that the DSP control unit can not load the saved parameters
properly. In this case, the system will return to factory set values. Until this
alarm is resetted via the LCD panel, the equipment does not generate AC.
Indicates there is a leakage current from any of the DC inputs to ground.
(OPS-02)
Indicates that one of the input or output circuit breakers are open. (Option
depending on user requirement)
Indicates the failure of the cooling fan. (Option depending on user
requirement)
Indicates that one or more of the semiconducter rapid fuses has blown.
(Option depending on user requirement)
Indicates that the enclouse door is opened. Used to inform the remote site, in
case there is maintenance on the inverter. (Option depending on user
requirement)
This alarm indicates that the “hardware block” function is active. Hardware
block is active, when a switch for hardware block is provided to the user and
if this switch is in OFF position. This alarm inhibits the operation of the
equipment.