Danfoss VLT AQUA Drive FC 202 Programming Manual page 70

Parameter Description
[8] Start
3 3
[9] Latched start
[10] Reversing
[11] Start
reversing
[14] Jog
[15] Preset
reference on
[16] Preset ref bit
0
[17] Preset ref bit
1
[18] Preset ref bit
2
[19] Freeze ref
68
Programming Guide
input, the reaction described above will be
delayed with the time set in
parameter 22-00 External Interlock Delay.
Select start value for a start/stop command.
'1' = start, '0 ' = stop.
(Default Digital input 18)
Motor starts, if a pulse is applied for min. 2
ms. Motor stops when Stop inverse is
activated
Changes direction of motor shaft rotation.
Select Logic '1' to reverse. The reversing
signal only changes the direction of rotation.
It does not activate the start function. Select
both directions in 4-10 Motor Speed
Direction.
(Default Digital input 19).
Used for start/stop and for reversing on the
same wire. Signals on start are not allowed
at the same time.
Used for activating jog speed. See
parameter 3-11 Jog Speed [Hz].
(Default Digital input 29)
Used for shifting between external reference
and preset reference. It is assumed that [1]
External/preset has been selected in
parameter 3-04 Reference Function. Logic '0' =
external reference active; logic '1' = one of
the 8 preset references is active.
Enables a selection of one of the 8 preset
references according to Table 3.10.
Enables a selection of one of the 8 preset
references according to Table 3.10.
Enables a selection of one of the 8 preset
references according to Table 3.10.
Preset ref. bit 2 1
Preset ref. 0 0 0
Preset ref. 1 0 0
Preset ref. 2 0 1
Preset ref. 3 0 1
Preset ref. 4 1 0
Preset ref. 5 1 0
Preset ref. 6 1 1
Preset ref. 7 1 1
Table 3.10 Preset Ref. Bit
Freezes actual reference. The frozen
reference is now the point of enable/
condition for speed up and speed down to
be used. If speed up/down is used, the
speed change always follows ramp 2
(parameter 3-51 Ramp 2 Ramp Up Time and
parameter 3-52 Ramp 2 Ramp Down Time) in
the range 0 - parameter 3-03 Maximum
Reference Maximum Reference.
Danfoss A/S © Rev. 2014-01-21 All rights reserved.
[20] Freeze output Freezes actual motor frequency (Hz). The
[21] Speed up
[22] Speed down
[23] Set-up select
bit 0
[24] Set-up select
bit 1
[32] Pulse input
0
[34] Ramp bit 0
0
1
[36] Mains failure
0
inverse
1
0
[42] Ref source bit
1
0
0
1
[51] Hand/Auto
Start
[52] Run
Permissive
frozen motor frequency is now the point of
enable/condition for speed up and speed
down to be used. If speed up/down is used,
the speed change always follows ramp 2
(parameter 3-51 Ramp 2 Ramp Up Time and
parameter 3-52 Ramp 2 Ramp Down Time) in
the range 0 - parameter 1-23 Motor
Frequency.
NOTICE
When [20] Freeze output is active, the
frequency converter cannot be
stopped via a low 'start [13]' signal.
Stop the frequency converter via a
terminal programmed for [2] Coast
inverse or [3] Coast and reset, inverse.
For digital control of the up/down speed
(motor potentiometer). Activate this function
by selecting either [19] Freeze reference or
[20] Freeze output. When [21] Speed up is
activated for less than 400 ms the resulting
reference is increased by 0.1%. If [21] Speed
up is activated for more than 400 ms the
resulting reference ramps according to
Ramp 1 in parameter 3-41 Ramp 1 Ramp Up
Time.
Same as [21] Speed up.
Selects one of the 4 set-ups. Set
parameter 0-10 Active Set-up to Multi Set-up.
Same as [23] Set-up select bit 0.
(Default Digital input 32)
Select [32] Pulse input when using a pulse
sequence as either reference or feedback.
Scaling is done in parameter group 5-5*
Pulse Input.
Select which ramp to use. Logic "0" selects
ramp 1 while logic "1" selects ramp 2.
Activates parameter 14-10 Mains Failure.
Mains failure inverse is active in the Logic
"0" situation.
An active input in bit 0 selects AI54 as the
reference source (see parameter group 3-1*
References, option [35] Digital input select).
An inactive input selects AI53.
Selects Hand or Auto Start. High = Auto On
only, Low = Hand on only.
The input terminal, for which the [52] Run
Permissive has been programmed must be
logic "1" before a start command can be
accepted. Run permissive has a logic 'AND'
function related to the terminal which is
programmed for [8] Start, [14] Jog or [20]
Freeze Output. This means that to start
running the motor, both conditions must be
fulfilled. If [52] Run Permissive is programmed
MG20O702