8-40
Name Description
LED
monitor
displays
Alarm
output
[30A/B/C]
Related
function
code
Inverter
• Stops the inverter output upon detection of excess
heat sink temperature in case of cooling fan failure
or overload.
0h1
Yes H43
Overheat protection
Braking
resistor
• Protects the braking resistor from overheat in
accordance with the setting of the electronic
thermal overload relay for braking resistor.
• When the braking resistor overheats, discharging
and the operation of the inverter are stopped.
* It is necessary to set the function code data
according to the braking resistor used.
dbh
Yes F50, F51
Overload
protection
Stops the inverter output according to the inverter
heat sink temperature and the switching element
temperature calculated from the output current.
Stops the inverter output if the Insulated Gate
Bipolar Transistor (IGBT) internal temperature
calculated from the output current and cooling fan
temperature detection exceeds the preset value.
0lu
Yes ---
Stops the inverter output in accordance with the
setting of the electronic thermal overload relay to
protect the motor.
This function protects general-purpose motors and
inverter motors over the entire frequency range, as
well as protecting the 2nd motor.
Electronic
thermal
overload
relay
* The operation level and thermal time constant (0.5
to 75.0 minutes) can be set.
0l1
0l2
Yes F10, H89
F11, F12
PTC
thermistor
A PTC thermistor input stops the inverter output for
motor protection.
A PTC thermistor is connected between terminals
[C1] and [11], and a resistor is connected between
terminals [13] and [C1].
0h4
Yes H26, H27
Motor protection
Overload
early
warning
Outputs a preliminary alarm at a preset level before
the motor is stopped by the electronic thermal
overload protection for the purpose of protecting the
motor.
--- --- E34, E35
Stall prevention
Operates if the inverter's output current exceeds the
instantaneous overcurrent limit level, avoiding
tripping of the inverter (during constant speed
operation or during acceleration).
--- --- H12
External alarm
input
Stops the inverter output with an alarm through the
digital input signal (THR).
0h2
Yes
E01 to
E03,
E98, E99
Alarm relay
output
(for any fault)
The inverter outputs a relay contact signal when the
inverter issues an alarm and stops the inverter
output.
< Alarm Reset >
The alarm stop state is reset by pressing the
key
or by the digital input signal RST.
< Saving the alarm history and detailed data >
The information on the previous 4 alarms can be
saved and displayed.
--- Yes
E20,
E27, E01
to E03,
E98, E99
"---": Not applicable.
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