Chapter 8 - Options
8-8
* Group 2
* Group 3
RESET
POWER
RUN
OHT
OCT
LED Description
RESET
Press this switch to release OCT FAULT status. Pressing
this turns the OCT LED off.
POWER
(GREEN)
POWER LED is turned ON upon inverter Power ON
because normally it is connected to the inverter.
RUN
(GREEN)
RUN LED is blinking while DBU is operating normally
by motor regenerating energy.
OHT (RED)
When heat sink is overheated and the level exceeds its
setting limit, overheat protection is activated and OHT
LED is turned ON after DBU’s signal is shut off.
OCT (RED)
Over current trip signal. When overcurrent is flowed to the
iGBT, protection function shuts off the operating signal
and OCT LED is tured ON.
POWER
RUN
OHT
OCT
FOT
LED Description
POWER
(RED)
POWER LED is turned ON upon inverter Power ON
because normally it is connected to the inverter.
RUN
(GREEN)
RUN LED is blinking while DBU is operating normally
by motor regenerating energy.
OHT
(RED)
When heat sink is overheated and the level exceeds its
setting limit, overheat protection is activated and OHT
LED is turned ON after DBU’s signal is shut off.
OCT
(RED)
Over current trip signal. When overcurrent is flowed to the
iGBT, protection function shuts off the operating signal
and OCT LED is tured ON.
FOT
(RED)
FOT LED is turned ON when fuse is opened to shut the
overcurrent during braking.