Programmed
reference
value
Parameter
Bit
01
Bit
00
1
Parameter 3-10 Preset Reference
[0] 0
0
2
Parameter 3-10 Preset Reference
[1] 0
1
3
Parameter 3-10 Preset Reference
[2] 1
0
4
Parameter 3-10 Preset Reference
[3] 1
1
Table 3.27 Control Bits
NOTICE
Make a selection in
parameter 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
parameter 2-01 DC Brake Current
and
parameter 2-02 DC Braking Time
.
Bit 02=1: Leads to ramping.
Bit 03, Coasting
Bit 03=0: The frequency converter immediately releases the
motor (the output transistors are shut off) and it coasts to
a standstill.
Bit 03=1: If the other starting conditions are met, the
frequency converter starts the motor.
Make a selection in
parameter 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
parameter 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 with the digital
inputs (
parameter 5-10 Terminal 18 Digital Input
to
parameter 5-13 Terminal 29 Digital Input
) programmed to
[21] Speed up
and
[22] Speed down
.
NOTICE
If freeze output is active, the frequency converter can
only be stopped by 1 of the following:
•
Bit 03 Coasting stop.
•
Bit 02 DC braking.
•
Digital input (
parameter 5-10 Terminal 18 Digital
to
parameter 5-13 Terminal 29 Digital
) programmed to
[5] DC braking
,
[2]
Coasting stop
, or
[3] 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: Allows the frequency converter to start the motor
if the other starting conditions are met.
Make a selection in
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 leading
signal edge, that is, when changing from logic 0 to logic 1.
Bit 08, Jog
Bit 08=1:
determines the
output frequency.
Bit 09, Selection of ramp 1/2
Bit 09=0: Ramp 1 is active (
to
parameter 3-42 Ramp 1 Ramp Down Time
).
Bit 09=1: Ramp 2 (
parameter 3-51 Ramp 2 Ramp Up Time
to
parameter 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. If the control word is not
needed when updating or reading parameter, turn it off.
Bit 11, Relay 01
Bit 11=0: Relay not activated.
Bit 11=1: Relay 01 activated if
[36] Control word bit 11
is
selected in
parameter 5-40 Function Relay
.
Bit 12, Relay 02
Bit 12=0: Relay 02 is not activated.
Bit 12=1: Relay 02 is activated if
[37] Control word bit 12
is
selected in
parameter 5-40 Function Relay
.
Bit 13, Selection of set-up
Use bit 13 to select from the 2 menu set-ups according to
Set-up
Bit 13
1
0
2
1
Table 3.28 Menu Set-ups
The function is only possible when
[9] Multi set-ups
is
selected in
Use
to define how bit 13 gates
with the corresponding function on the digital inputs.
Bit 15 Reverse
Bit 15=0: No reversing.
Bit 15=1: Reversing. In the default setting, reversing is set
to digital in
parameter 8-54 Reversing Select
. Bit 15 causes
reversing only when serial communication,
[2] Logic OR
or
[3] Logic AND
is selected.
RS485 Installation and Set-...
Programming Guide
MG03N202
Danfoss A/S © 11/2015 All rights reserved.
31
3
3
