5.3 Description of Function Codes 5.3.2 E codes (Extension terminal functions)
Running forward – “FRUN” assignment (Function code data = 52) Running reverse – “RRUN”
assignment (Function code data = 53)
Under remote mode “RMT” assignment (Function code data = 54)
This output signal comes ON when the inverter switches from local to remote mode.
For details of switching between remote and local modes, refer to Chapter 3 “3.3.8 Remote and local modes”.
Motor overheat detected by thermistor “THM” assignment (Function code data = 56)
When the PTC thermistor on the motor detects an overheat, the inverter turns this signal ON and continues to run,
without entering the alarm 0H4 state. This feature applies only when H26 data is set to “2.”
( Function codes H26, H27)
Brake control “BRKS” assignment (Function code data = 57)
This signal outputs a brake control command that releases or applies the brake.
( Function codes J68 to J72)
Terminal [C1] (C1 function) wire break detection “C1OFF” assignment (Function code data = 59)
This output signal comes ON when the inverter detects that the input current to terminal [C1] (C1 function) drops
below 2 mA interpreting it as the terminal [C1] wire broken.
Speed valid “DNZS” assignment (Function code data = 70)
This output signal comes ON when the reference speed or detected one exceeds the stop frequency specified by
function code F25. It goes OFF when the speed is below the stop frequency for 100 ms or longer.
Under vector control with speed sensor, F38 switches the decision criterion between the reference speed and actual
speed. Under vector control without speed sensor, the reference speed is used as a decision criterion.
( Function codes F25, F38)
Fig. 5.3-16
Speed agreement “DSAG” assignment (Function code data = 71)
This output signal comes ON when the deviation of the detected speed from the speed command after the
acceleration/deceleration processor is within the allowable range specified by d21. It goes OFF when the deviation
is beyond the range for longer than the period specified by d22. This feature allows you to check whether the speed
controller is working correctly.
( Function codes d21, d22)
PG error detected “PG-ERR”assignment (Function code data = 76)
This output signal comes ON when the inverter detects a PG error with the d23 (PG error processing) data being
set to “0: Continue to run,” in which the inverter does not enter the alarm state.
( Function codes d21 to d23)