Fuji Electric FRENIC-AQUA series, User Manual

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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
Transistor output or alarm
output (for any alarm) *2
Power supply
L1/R, L2/S, L3/T
EN1-PLC EN2-PLC DECF ENOFF
Output
OFF
√ √
OFF OFF
Shutdown
(Safe Torque OFF *3)
OFF OFF OFF ON Shutdown
(Safe Torque OFF *3)
ON ON OFF OFF Waiting for a run command
ON OFF ON *4 OFF
Shutdown
(Safe Torque OFF *3)
ON
OFF ON ON *4 OFF
Shutdown
(Safe Torque OFF *3)
√
: 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.
„
Motor 1 to Motor 4 being driven by inverter
-- M1-I to M4-I (Function code data = 160, 162, 164, and 166)
These signals are used to find inverter-driven motors in pump operation. Assign these signals
for motors to be driven by the inverter when the "inverter drive motor floating system" (J401
= 2) or the "inverter drive motor fl commercial power-driven motor system" (J401 =
3) is selected.
Refer to J401.