Programmed ref.
value
Parameter
Bit 01
Bit 00
1
3-10 Preset Reference
[0]
0
0
2
3-10 Preset Reference
[1]
0
1
3
3-10 Preset Reference
[2]
1
0
4
3-10 Preset Reference
[3]
1
1
NOTE
Make a selection in
8-56 Preset Reference Select
to define
how Bit 00/01 gates with the corresponding function on
the digital inputs.
Bit 02, DC brake
Bit 02 = ’0’ leads to DC braking and stop. Set braking
current and duration in
2-01 DC Brake Current
and
2-02 DC
Braking Time
. Bit 02 = ’1’ leads to ramping.
Bit 03, Coasting
Bit 03 = ’0’: The frequency converter immediately "lets go"
of the motor, (the output transistors are "shut off") and it
coasts to a standstill. Bit 03 = ’1’: The frequency converter
starts the motor if the other starting conditions are met.
Make a selection in
8-50 Coasting Select
to define how Bit
03 gates with the corresponding function on a digital
input.
Bit 04, Quick stop
Bit 04 = ’0’: Makes the motor speed ramp down to stop
(set in
3-81 Quick Stop Ramp Time
).
Bit 05, Hold output frequency
Bit 05 = ’0’: The present output frequency (in Hz) freezes.
Change the frozen output frequency only by means of the
digital inputs (
5-10 Terminal 18 Digital Input
to
5-13 Terminal 29 Digital Input
) programmed to
Speed up
and
Slow down
.
NOTE
If Freeze output is active, the frequency converter can only
be stopped by the following:
•
Bit 03 Coasting stop
•
Bit 02 DC braking
•
Digital input (
5-10 Terminal 18 Digital Input
to
5-13 Terminal 29 Digital Input
) programmed to
DC
braking
,
Coasting stop
, or
Reset
and
coasting stop
.
Bit 06, Ramp stop/start
Bit 06 = ’0’: Causes a stop and makes the motor speed
ramp 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 are met.
Make a selection in
8-53 Start Select
to define how Bit 06
Ramp stop/start gates with the corresponding function on
a digital input.
Bit 07, Reset Bit 07 = ’0’: No reset. Bit 07 = ’1’: Resets a trip.
Reset is activated on the signal’s leading edge, i.e. when
changing from logic ’0’ to logic ’1’.
Bit 08, Jog
Bit 08 = ’1’: The output frequency is determined by
3-11 Jog Speed [Hz]
.
Bit 09, Selection of ramp 1/2
Bit 09 = "0": Ramp 1 is active (
3-41 Ramp 1 Ramp up Time
to
3-42 Ramp 1 Ramp Down Time
). Bit 09 = "1": Ramp 2
(
3-51 Ramp 2 Ramp up Time
to
3-52 Ramp 2 Ramp down
Time
) is active.
Bit 10, Data not valid/Data valid
Tell the frequency converter whether to use or ignore the
control word. Bit 10 = ’0’: The control word is ignored. Bit
10 = ’1’: The control word is used. This function is relevant
because the telegram always contains the control word,
regardless of the telegram type. Thus, you can turn off the
control word if you do not want to use it when updating
or reading parameters.
Bit 11, Relay 01
Bit 11 = "0": Relay not activated. Bit 11 = "1": Relay 01
activated provided that
Control word bit 11
is chosen in
5-40 Function Relay
.
Bit 12, Relay 02
Bit 12 = "0": Relay 02 is not activated. Bit 12 = "1": Relay 02
is activated provided that
Control word bit 12
is chosen in
5-40 Function Relay
.
Bit 13, Selection of set-up
Use bits 13 to choose from the 2 menu set-ups according
to the shown table.
Set-up
Bit 13
1
0
2
1
The function is only possible when
Multi Set-Ups
is selected
in
0-10 Active Set-up
.
RS485 Installation and Set-...
VLT Micro Drive Design Guide
MG02K102 - VLT
®
is a registered Danfoss trademark
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