5.3 Description of Function Codes 5.3.2 E codes (Extension terminal functions)
Current detection “ID” assignment, Current detection 2 “ID2” assignment, Current detection 3 “ID3”
assignment (Function code data = 37, 38, 39)
When the inverter output current exceeds the level specified by E34, E37 or E55 for the period specified by E35,
E38 or E56, the ID, ID2 or ID3 signal turns ON, respectively. (The minimum ON-duration is 100 ms.)
( Function code E34)
Low current detection “IDL”, “IDL2” assignment (Function code data = 41, 133)
When the inverter output current falls to or below the level specified by E34, E37 or E55 for the period specified by
E35, E38 or E56, the IDL or IDL2 signal turns ON, respectively (minimum output signal width: 100 ms). “IDL” turns
ON if conditions are established even while the inverter is stopped. “IDL2” turns ON only while the inverter is running.
( Function code E34)
PID alarm “PID-ALM” assignment (Function code data = 42)
Assigning this output signal enables PID control to output absolute-value alarm or deviation alarm.
( Function codes J11 to J13)
Under PID control “PID-CTL” assignment (Function code data = 43)
This output signal comes ON when PID control is enabled (“Cancel PID control” (Hz/PID) = OFF) and a run
command is ON.
( Function code J01)
When PID control is enabled, the inverter may stop due to the slow flowrate stopping function or other
reasons. If that happens, the “PID-CTL” signal remains ON. As long as the “PID-CTL” signal is ON, PID
control is effective, so the inverter may abruptly resume its operation, depending on the feedback value
in PID control.
When PID control is enabled, even if the inverter stops its output during operation because of sensor signals or
other reasons, operation will resume automatically. Design your machinery so that safety is ensured even in
such cases.
Failure to observe this could result in an accident.
Under sleep mode of PID control “PID-STP” assignment (Function code data = 44)
This output signal is ON when the inverter is in a stopped state due to the slow flowrate stopping function under
PID control.)
( Function codes J15 to J17, J23 J24)
Low torque detected “U-TL” assignment (Function code data = 45)
This output signal comes ON when the torque value calculated by the inverter or torque command drops below the
level specified by E80 (Low torque detection (Level)) for the period specified by E81 (Low torque detection (Timer)).
(Minimum width of the output signal: 100 ms)
( Function codes E78 to E81)
Torque detected 1 “TD1” assignment (Function code data = 46),Torque detected 2 – “TD2” assignment
(Function code data = 47)
This output signal TD1 or TD2 comes ON when the torque value calculated by the inverter or torque command
exceeds the level specified by E78 or E80 (Torque detection (Level)) for the period specified by E79 or E81 (Torque
detection (Timer)), respectively. (Minimum width of the output signal: 100 ms)
( Function codes E78 to E81)
Motor 1 to 4 switching “SWM1”, “SWM2”, “SWM3”, “SWM4” assignment (Function code data = 48 to
51)
The output signals turn ON corresponding to the motor selected by the signal “M2” to “M4” the selected function
code group.
( Function code A42)
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