Fuji Electric FRENIC-HVAC User Manual page 425

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.
Alarm output (for any alarm) -- ALM (Function code data = 99)

This output signal comes ON if any of the protective functions is activated and the inverter
enters Alarm mode.
EN terminal detection circuit error -- DECF (Function code data = 101)

This output signal comes ON when an error is detected in the Enable circuit.
As necessary, make use of DECF in wiring that feeds back the DECF-assigned transistor
output of the inverter to the reset input of an upper safety relay unit in order to turn the Enable
command OFF and shut down the inverter output.
EN terminal OFF -- ENOFF (Function code data = 102)

This output signal comes ON when Enable inputs to terminals [EN1] and [EN2] are OFF.
*1 These signals do not guarantee the detection of all signal alarms. (Compliant with EN
ISO13849-1 PL = d Cat. 3)
Logic Table of DECF and ENOFF Signals
Enable input
Power supply
L1/R, L2/S, L3/T
EN1-PLC EN2-PLC
√
OFF
OFF
ON
ON
ON
OFF
√ : The output level is determined independent of the states.
*2 To use this function, it is necessary to set the software parameter to DECF/ENOFF = 101/102
(negative logic).
*3 Safe Torque OFF (STO) defined by IEC61800-5-2.
*4 If either one of Enable inputs to [EN1] and [EN2] is OFF, an alarm (ECF) occurs. (If the status
is kept exceeding 50 ms, it is judged as mismatch.) This alarm can be removed only by
restarting the inverter.
Transistor output or alarm
output (for any alarm) *2
DECF ENOFF
√
OFF OFF
OFF OFF ON
ON OFF OFF
OFF ON *4 OFF
ON ON *4 OFF
6-115
6.3 Details of Function Codes
Output
Shutdown
(Safe Torque OFF *3)
Shutdown
(Safe Torque OFF *3)
Waiting for a run command
Shutdown
(Safe Torque OFF *3)
Shutdown
(Safe Torque OFF *3)