Function Application
‑553‑
Value
Function Description
2
Fault output
(coast‑to‑stop
fault)
The DO outputs the active signal when the AC drive stops due
to a fault.
3
Frequency level
detection 1
The DO outputs the active signal when the running frequency
exceeds the frequency detection value. The DO stops
outputting the active signal when the running frequency is
lower than the result of the detection value minus the
frequency detection hysteresis (FDT, which equals the result
of F8‑19 multiplied by F8‑20).
4
Frequency reach The DO outputs the active signal when the running frequency
of the AC drive is within a particular range (Target
frequency±Result of the value of F8‑21 multiplied by the
maximum frequency).
5
Zero‑speed
running (no
output at stop)
The DO outputs the active signal when the AC drive is running
with the output frequency being 0. The DO outputs the
inactive signal when the AC drive is stopped.
6
Motor overload
pre‑warning
Before performing the protection action, the AC drive
determines whether the motor load exceeds the overload pre‑
warning threshold according to the overload pre‑warning
coefficient (F9‑02). When the AC drive determines that the
overload pre‑warning threshold is exceeded, he terminal
outputs an active signal.
7
AC drive overload
pre‑warning
The DO outputs the active signal 10 seconds before AC drive
overload protection is performed.
8
Set count value
reach
In a counting process, the DO outputs the active signal when
the count reaches the value of FB‑08.
9
Designated count
value reach
In a counting process, the DO outputs the active signal when
the count reaches the value of FB‑09.
10
Length reach The DO outputs the active signal when the detected length
exceeds the value of FB‑05 in the fixed length function.
11
Simple PLC cycle
completed
The DO outputs a pulse signal with the width of 250 ms when
simple PLC completes one cycle.
12
Accumulative
running time
reach
The DO outputs the active signal when the accumulative
running time of the AC drive exceeds the value of F8‑17
(accumulative running time threshold).
13 Frequency
limited
The DO outputs the active signal when the frequency
reference exceeds the upper limit or lower limit and the
output frequency of the AC drive reaches the upper limit or
lower limit.
14
Torque limited The DO outputs the active signal when the output torque
reaches the torque limit in speed control mode.
15
Ready to run The DO outputs the active signal if no exception occurs after
the AC drive is powered on.
16 AI1 > AI2
The DO outputs the active signal when the value of AI1 is
greater than that of AI2.
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