Operating instructions

ManualsBrandsDanfoss ManualsMedia ConverterFC 100 Series

Bit 02, DC brake:

Bit 02 = ’0’ leads to DC braking and stop. Braking current and duration are set in par. 2-01

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