Other Displays - Hitachi J300U Series Instruction Manual

12.4 Protection function display list when the remote operator is used
There are protection functions for overcurrent, overvoltage, and undervoltage provided to
protect the inverter. When one of the functions is performed, the output is cut off, and the
motor is put into the free run state, and the status is kept until the inverter is forced to reset.
Name Digital operator display
Constant speed
Overcurrent
Deceleration
protection
Acceleration
Overload
protection
Braking resistor
overload
Overvoltage
protection
EEPROM error
Undervoltage
protection
CT error
CPU error
External trip
USP error
Ground fault
protection

Other displays

Display
R-ERROR COMM< >
R-ERROR INV.RUN
R-ERROR INV.TRIP
R-ERROR INV.TYPE
R-ERROR RD LOCK
RESTART . s
ADJUST . s
UV WAIT
POWER OFF
Tuning OK
Tuning NG
NOTE 1: Power OFF during motor deceleration may cause an input phase failure error.
NOTE 2: When the J-FB is installed, an error is display for each factor as shown below.
Encoder line break:
Overspeed:
Positioning error:
Thermistor line break:
Motor overheat:
Malfunction or abnormality on built-in CPU of the option:
Remote operator(DOP)
copy unit(DRW)display
ERR1
OC.Drive
OC.Decel
OC.Accel
Over.L
OL.BRD
Over.V
EEPROM
Under.V
CT
CPU
EXTERNAL
USP
GND.Flt
Cause
This is displayed when an error occurs between the inverter and remote operator.
Communication error
When the STOP key or another key is pressed, the original display appears.
*=1. Protocol error
When the original display does not appear, turn the power off and then on once
=2. Time-out error
again. Check whether any connectors are loose.
If one of the displays on the left occurs when the copy unit is used to read or copy,
During inverter running
take the corresponding countermeasure.
• INV. RUN: Stop the running.
Under inverter trip
• INV. TRIP: Press the STOP key to release the trip.
• INV. TYPE: The inverter type of the copy source is different from that of the
Inverter type mismatch
The fourth switch of the DIP switch on the back of the remote operator is ON.
Inverter read lock
When reading data, turn the switch OFF.
This indicates that the instantaneous power failure restart function is being performed.
Instantaneous power
• RESTART: 0 start is in execution.
failure restart function in
• ADJUST: Frequency matching is in execution.
operation
The supply voltage is lowered to the undervoltage level. When this display
Undervoltage
appears, turn the power on once again.
Power OFF The undervoltage after the power is turned off is displayed.
This is displayed after the autotuning measurement is finished.
Autotuning function end
• Tuning OK: The measurement terminates normally.
display
• Tuning NG: The measurement fails.
Name
Input overvoltage
Instantaneous
power failure
Option connec-
tion error
Option PCB
error
(NOTE 2)
Phase failure
protection error
Power module
protection
Undervoltage
standby
For error contents, see page 8-1.
copy destination. Use the same type of inverter to read or copy.
12-16
Remote operator(DOP)
copy unit(DRW)display
Digital operator display
Option 1
Option 2
Option 1
Option 2
(NOTE 1)
Constant speed
Deceleration
Acceleration
Stop
Description
Digital operator
display
ERR1
OV.SRC
Inst.P-F
NG.OP1
NG.OP2
OP1
OP2
PH.Fail
PM.Drive
PM.Decel
PM.Accel
PM.ERR
UV.WAIT
DOP, DRW
OP1 0
OP1 1
OP1 2
OP1 4
OP1 5
OP1 7