74
the prescribed value after the external
temperature sensor is connected to the terminal
block. Operation resumes if PRT-34 is set at
values other than 0.
ParaWrite Trip Latch Trouble during parameter writing with the
inverter’s main body from the keypad.
Over Speed Trip Latch A failure occurs when the motor speed goes up
above the overspeed detection level. The
detection level is set in PRT-70.
Dev Speed Trip Latch A failure occurs when the speed that got
feedback from the encoder goes up above the
set variation value. Operation resumes if PRT-
73 is set at 1.
Encoder Trip Latch A failure occurs when PRT-77 Enc Wire Check
is set at 1 and abnormality is detected for the
set period of time.
Pre-PID Fail Latch A failure occurs when the control amount(PID
feedback) is continuously input below the set
value during Pre-PID operation by the function
setting between APP-34 ~36, which is regarded
as an abnormal state of the system.
Option and Keypad Protection
Lost Keypad Level A failure occurs when operating commands come
from the keypad or there is any problem with the
communication between the keypad and inverter’s
main body in the Keypad JOG Mode. Operation
resumes if PRT-11 is set at values other than 0.
(occurs 2 seconds after the communication is
interrupted)
Lost Command Level When there is a problem with the command if
frequency or operating commands are given by the
terminal block or communication command other
than the keypad. Operation resumes if PRT-12 is set
at values other than 0.
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