Protective Functions - Hyundai hiRUN N100plus Series Manual

HYUNDAI INVERTER N100 plus

Protective Functions

Various functions are provided for the protection of the inverter itself,
but they also perform the protection function when the inverter breaks down.
Function
Overcurrent
protection
Overload protection
(electronic thermal)
regenerative
Overvoltage
protection
Communication
error
Undervoltage
protection
Output
short-circuit
USP error
EEPROM error
External trip
Ground fault
protection
Temperature trip
Description
When the inverter output current exceeds the rated current by more than
approximately 200% while the motor is locked or reduced in speed,
the 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.
The inverter output is cut off when communication to the inverter has an error
due to external noise, excessive temperature rise, or other factors.
When the input voltage to the inverter decreases, the control circuit
does not function normally. 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 is selected.)
The inverter output is cut off when the EEPROM in the inverter has an error due to
external noise, excessive temperature rise, or other factors.
When the external equipment or unit has an error, the inverter receives the
corresponding signal and cuts off the output.
Ground fault is detected between the inverter output section and the motor when
the power is turned on, to protect the inverter.
When the temperature in the main circuit increases due to cooling fan failure,
the inverter output is cut off (only for the model with a cooling fan).
Display
Standard operator Remote operator
E04 Over.C
E05 Over.L
E07 Over.V
E60 Com.ERR
E09 Under.V
E34
PM.ERR
E13 USP
E08 EEPROM
E12 EXTERNAL
E14 GND.Flt
E21 OH.FIN