Fuji Electric FRENIC-HVAC User Manual page 419

Function code data
Active
Active OFF
ON
231 1231 Under external PID3 control
232 1232 External PID3 output
233 1233 Running under external PID3
234 1234 External PID3 alarm
235 1235 External PID3 feedback error
Any negative logic (Active OFF) command cannot be assigned to the functions
marked with " " in the "Active OFF" column.

Inverter running -- RUN (Function code data = 0)

Inverter output on -- RUN2 (Function code data = 35)
These output signals tell the external equipment that the inverter is running at a starting
frequency or higher.
If assigned in negative logic (Active OFF), these signals can be used to tell the "Inverter being
stopped" state.
Output signal
These signals come ON when the inverter is
RUN running.
Under V/f control:
These signals come ON if the inverter output
frequency exceeds the starting frequency, and
go OFF if it drops below the stop frequency.
RUN2
The RUN signal can also be used as a "Speed
valid" signal DNZS.
Under vector control, both RUN and RUN2 come ON also when zero speed control or
servo-lock function is enabled.
Frequency (speed) arrival signal -- FAR (Function code data = 1)

These output signals come ON when the difference between the output frequency (detected
speed) and reference frequency (reference speed) comes within the frequency arrival
hysteresis width specified by E30.
 Refer to E30.
Frequency (speed) detected -- FDT (Function code data = 2)

This output signal comes ON when the output frequency exceeds the frequency detection
level specified by E31, and it goes OFF when the output frequency drops below the
"Frequency detection level (E31) - Hysteresis width (E32)."
 Refer to E31 and E32.
Undervoltage detected (Inverter stopped) -- LU (Function code data = 3)

This output signal comes ON when the DC link bus voltage of the inverter drops below the
specified undervoltage level, and it goes OFF when the voltage exceeds the level.
When this signal is ON, the inverter cannot run even if a run command is given.
This signal is ON also when the undervoltage protective function is activated so that the
motor is in an abnormal stop state (e.g., tripped).
Functions assigned
Basic function
6-109
6.3 Details of Function Codes
Related
function
Symbol
codes/signals
(data)
EPID3-CTL
J651
EPID3-OUT
EPID3-RUN
J671, J672, J674
EPV3-ALM
J679 to J681
EPV3-OFF
Remarks
Goes OFF even during DC
braking or dew condensation
prevention.
Comes ON even during DC
braking, pre-exciting, zero
speed control, or dew
condensation prevention.