8-18
Name Description
LED
monitor
displays
Alarm
output
[30A/B/C]
Protection
against
momentary
power failure
Upon detecting a momentary power failure lasting more than 15
ms, this function stops the inverter output.
If restart after momentary power failure is selected, this function
invokes a restart process when power has been restored within
a predetermined period.
—- —
Overload
prevention
control
In the event of overheating of the heat sink or an overload
condition (alarm code:
J
or
NW
), the output frequency of
the inverter is reduced to keep the inverter from tripping.
— —
Hardware error
The inverter is stopped when poor connection between the
control printed circuit board (control PCB) and power printed
circuit board (power PCB), interface printed circuit board
(interface PCB) or option card, or short-circuit between
terminals [13] and [11] is detected.
GTJ
Yes
Mock alarm Simulated alarm is output to check the fault sequence.
GTT
Yes
PID feedback
wire break
detection
When the inverter is under PID control, detecting a PID
feedback wire break stops the inverter output and displays an
error code
EQH
.
EQH
Yes
—": Not applicable.
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