Protective Function - Hyundai N700E Manual De Instrucciones

N700E INSTRUCTION MANUAL

6. Protective function

The various functions are provided for the protection of the inverter itself, but they may also protection
function when the inverter breaks down.
Name
Over current
protection
Overload protection
(Electronic thermal)
Regenerative
Over voltage
protection
Communication
error
Under-voltage
protection
Output
short-circuit
USP error
EEPROM
External trip
Input phase loss
Temperature trip
Ground fault
Inverter Overload
When the inverter output current exceeds the rated current by more than
approximately 200% during the motor locked or reduced in speed.
Protection circuit activates, halting inverter output.
When the inverter output current causes the motor to overload,
the electronic thermal trip in the inverter cuts off the inverter output.
If regenerative energy from the motor or the main power supply voltage
is high, the protective circuit activates to cut off the inverter output when
the voltage of DC link exceeds the specification
Communication error between inverter and its operator.
If the Reset signal persists for more than 4 seconds, it will occur.
When input voltage drops below the low-voltage detection level,
the control circuit does not function normally.
So when the input voltage is below the specification, the inverter
output is cut off.
The inverter output was short-circuited.
This condition causes excessive current for the inverter, so the inverter
output is turned off.
The USP error is indicated when the power is turned on with the
Inverter in RUN state. (Enabled when the USP function selected)
The inverter output is cut off when EEPROM in the inverter has an error
due to external noise, excessive temperature rise, or other factor
When the external equipment or unit has an error, the inverter receives
the corresponding signal and cuts off the output.
A function that detects phase loss in the input AC source. Detection is
performed using the fluctuation in the main circuit's DC voltage. Also, in
the case of degradation of main capacitors it could be occurred.
When the temperature in the main circuit increases due to cooling fan
stop, the inverter output is cut off.
(only for the model type with cooling fan)
When ground fault is detected on running condition, the output is cut off.
The power device IGBT is protected from over heat. The operating time
of inverter is 1 minute with 150% load of HD or 120% load of ND.
The operating time is changed depending on carrier frequency, load,
ambient temperature and power rating.
Cause(s)
6-1
Error
Code
E04
E05
E07
E60
E09
E04 or
E34
E13
E08
E12
E20
E21
E14
E17