Danfoss VLT FC 100 Series User Manual

Bit 02, DC brake:
Bit 02 = ’0’ leads to DC braking and stop. Braking current and duration are set in par. 2-01
DC
Brake Current
and 2-02 DC Braking Time .
Bit 02 = ’1’ leads to ramping.
Bit 03, Coasting:
Bit 03 = ’0’ causes the frequency converter to immediately "let go" of the motor (the output
transistors are "shut off"), so that it coasts to a standstill.
Bit 03 = ’1’ enables the frequency converter to start the motor if the other starting conditions have
been fulfilled.
NB!
In par. 8-50
Coasting Select a selection is made to define how Bit 03 gates with the
corresponding function on a digital input.
Bit 04, Quick stop:
Bit 04 = ’0’ causes a stop, in which the motor speed is ramped down to stop via par. 3-81
Quick
Stop Ramp Time
.
Bit 05, Hold output frequency:
Bit 05 = ’0’ causes the present output frequency (in Hz) to freeze. The frozen output frequency
can then be changed only by means of the digital inputs (parameters 5-10 to 5-15) programmed
to Speed up and Speed down.
NB!
If Hold output is active, only the following can stop the frequency converter:
• Bit 03 Coasting stop
•Bit 02 DC braking
• Digital input (parameters 5-10 to 5-15) programmed to DC braking, Coast-
ing stop or Reset and coasting stop.
Bit 06, Ramp stop/start:
Bit 06 = ’0’ causes a stop, in which the motor
speed is ramped down to stop via the selected
ramp down parameter.
Bit 06 = ’1’ permits the frequency converter to
start the motor, if the other starting conditions
have been fulfilled.
NB!
In par. 8-53
Start Select a selection is made to define how Bit 06 Ramp stop/start
gates with the corresponding function on a digital input.
Bit 07, Reset:
Bit 07 = ’0’ does not cause a reset.
Bit 07 = ’1’ causes the reset of a trip. Reset is activated on the leading edge of the signal, i.e.
when changing from logic ’0’ to logic ’1’.
Bit 08, Jog:
Bit 08 = ’1’ causes the output frequency to be determined by par. 3-19
Jog Speed .
FC 100/ 200/ 300 DeviceNet 4. How to Control the Frequency Converter
MG.33.D3.02 - VLT
®
is a registered Danfoss trademark 33
4

Danfoss VLT FC 100 Series Specifications

General

Brand	Danfoss
Model	VLT FC 100 Series
Category	DC Drives
Language	English