BONFIGLIOLI Agile Operating Instructions Manual page 218

The frequency inverter reacts to the signals at the control inputs both when the power
failure regulation is switched on and in normal operation. A control via externally sup-
plied control signals is only possible in the case of a no-break supply. As an alterna-
tive, supply of the control signals through the frequency inverter is to be used.
Output signals
Mains failure and mains support are signaled via digital signals.
1)
179 - Mains failure
2)
13 - Mains failure
1)
For linking to frequency inverter functions.
2)
For output via a digital output. Select the signal source for one of the parameters 531, 532, 533,
554. See chapter 7.6.5 "Digital outputs".
Voltage controller: Parameter
675 Shutdown Threshold
676 Reference Shutdown Value
The DC link voltage which is available in the case of a power failure is supplied by the motor. The
output frequency is continuously reduced and the motor with its rotating masses is switched over to
generator operation. The reduction of the output frequency is done with a maximum of the current
set by the parameter
Gen. Ref. Current Limit
Mains Support Deceleration
675.
Threshold
The time required until the motor has come to a standstill results from the regenerative energy of the
system which results in an increase in the DC link voltage. The DC link voltage set with the parameter
Reference Shutdown Value
stant. The voltage rise enables optimization of the braking behavior and the time until the drive has
come to a standstill. The behavior of the controller can be compared to stopping behavior 2 (Shut-
down and Stop), as the voltage controller brings the drive to a standstill at the maximum deceleration
ramp and supplies it with the remaining DC link voltage.
If the DC-link voltage is restored before the shutdown of the drive, but after falling below
675, the drive is still decelerated to standstill.
Threshold
Agile
Operating Instructions
Failure of mains voltage and mains support– selected via
670 of the voltage controller.
Operation mode power failure regulation
with Mains resumption
683 or the ramp
673 is only active if the Actual frequency is smaller than
676 is used by the voltage controller as a control figure and kept con-
218
06/2013
Parameter descriptions
670 = 2
Operation mode
Mains Support Deceleration
Operation Mode
673.
Shutdown
Shutdown
Control functions