Fuji Electric FRENIC-AQUA series, User Manual

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6.3 Details of Function Codes
6-117
Chap. 6
FUNCTION C
ODES
„
Motor overheat detected by thermistor -- THM (Function code data = 56)
Even when the PTC thermistor on the motor detects an overheat, the inverter turns this signal
ON and continues to run, without entering the alarm
OH4 state. This feature applies only
when H26 data is set to "2."
Refer to H26 and H27.
„
Terminal [C1] wire break -- C1OFF (Function code data = 59)
This output signal comes ON when the inverter detects that the input current to terminal [C1]
drops below 2 mA interpreting it as the terminal [C1] wire broken.
„
Motor regular switching early warning -- MCHG (Function code data = 68)
This outputs a motor regular switching early warning signal.
Refer to J437.
„
Pump control output limit signal -- MLIM (Function code data = 69)
When the pump control mode selection is enabled (J401
≠
0), all of the enabled motors are to
be driven. With all motors being driven, if the motor increase judgment is established by the
motor increase judgment (Judgment frequency) (J450) and (Duration time) (J451), the
inverter issues an
MLIM signal.
This signal detects the discharge rate (pressure) remaining low due to pump pipe rupture. etc.
„
Maintenance timer -- MNT (Function code data = 84)
Once the inverter's cumulative run time or the startup times for the motor 1 exceeds the
previously specified count, this output signal comes ON.
Refer to H44, H78 and H79.
„
Frequency arrival signal (with frequency detection)
-- FARFDT (Function code data = 87)
This output signal comes ON when both the FAR (Frequency arrival signal) and FDT
(Frequency detected) come ON. (The FARFDT is an AND condition signal of the FAR and
FDT .)
„
Auxiliary motor drive signal -- AUX_L (Function code data = 88)
This output signal comes ON when all motors enabled by MEN1 to MEN8 (Enable pump
control motor 1 to 8 to be driven) are running and the frequency of inverter-driven motors
reaches the frequency operation level of the auxiliary motor (J465).
When the frequency of inverter-driven motors drops below the hysteresis width of the
auxiliary motor (J466), this signal goes OFF.
When PID control is disabled (J101/J201 = 0) or pump control is disabled (J401 = 0), this
output signal is OFF.
Refer to J465 to J469.
„
Running in fire mode -- FMRUN (Function code data = 95)
This output signal comes ON in fire mode.
Refer to H116 through H121.
„
Light alarm -- L-ALM (Function code data = 98)
This output signal comes ON when a light alarm occurs.
Refer to H181 through H184.