Triggered when PRT-91 is set to Free Run. Related settings
in PRT-92 ~ PRT-95
Displayed when a frequency or operation command error is
detected during inverter operation by controllers other than
the keypad (e.g., using a terminal block and a
communication mode). Activate by setting PRT-12 to any
value other than ‘0’.
Displayed when the I/O board or external communication
card is not connected to the inverter or has a bad
connection.
Displayed when communication fails during parameter
writing. Occurs due to a control cable fault or a bad
connection.
Displayed when a communication error is detected between
the inverter and the communication board. Occurs when a
communication option card is installed.
Displayed when PRT-17 is set to ‘1 (Yes)’ to enable OL warning and
motor is overloaded. Related parameters PRT-17 ~ PRT-19. Set output
relays or Q1 (OUT-31–35 or OUT-36) to ‘5’ (Over Load)’ to receive the
overload warning output signals.
Displayed when PRT-25 is to ‘1 (Yes)’ and the motor is underloaded.
Related parameters PRT-25 ~ PRT- Set output relays or Q1 (OUT-31–
35 or OUT-36) to ’7 (Under Load)’ to receive the underload warning
output signals.
Displayed when the overload time equivalent to 60% of the inverter
overheat protection (inverter IOLT) level is accumulated. Set output
relays or Q1 (OUT-31–35 or OUT-36) to ‘6 (IOL)’ to receive the inverter
overload warning output signal.
Lost command warning alarm occurs even with PRT-12 set to ‘0’. The
warning alarm occurs based on the condition set at PRT-13-15. Set
output relays or Q1 (OUT-31–35 or OUT-36) to ‘13 (Lost Command)’ to
receive the lost command warning output signals.
Displayed when an error is detected from the cooling fan while PRT-79 is
set to’1 (Yes)’. Set output relays or Q1 (OUT-31–35 or OUT-36) to ‘8
(Fan Warning)’ to receive the fan warning output signals.
Displayed when the DB resistor usage rate exceeds the set value. Set
the detection level at PRT-66.
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