Danfoss VLT AutomationDrive FC 300 Operating Instructions Manual page 56

4 How to Programme
[19] Freeze ref
[20] Freeze output
4
[21] Speed up
Unchanged speed
Reduced by %-value
Increased by %-value
Reduced by %-value
[22] Speed down
[23] Set-up select bit 0
[24] Set-up select bit 1
[26] Precise stop inv.
[27] Precise start, stop
[28] Catch up
[29] Slow down
[30] Counter input
[32] Pulse input
[34] Ramp bit 0
[35] Ramp bit 1
56
Freezes the actual reference, which 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 (par.
3-51 Ramp 2 Ramp up Time and par. 3-52
Maximum Reference
3-03 .
Freezes the actual motor frequency (Hz), which 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
Ramp 2 Ramp up Time
(par. 3-51 and par. 3-52
Motor Frequency
1-23 .
NB!
When Freeze output is active, the frequency converter cannot be stopped via a
low 'start [8]' signal. Stop the frequency converter via a terminal programmed
for Coasting inverse [2] or Coast and reset, inverse.
Select Speed up and Speed down if digital control of the up/down speed is desired (motor poten-
tiometer). Activate this function by selecting either Freeze reference or Freeze output. When Speed
up/ down is activated for less than 400 msec. the resulting reference will be increased/ decreased
by 0.1 %. If Speed up/ down is activated for more than 400 msec. the resulting reference will follow
the setting in ramping up/ down parameter 3-x1/ 3-x2.
Same as Speed up [21].
Select Set-up select bit 0 or Select Set-up select bit 1 to select one of the four set-ups. Set par.
0-10 Active Set-up to Multi Set-up.
(Default Digital input 32): Same as Set-up select bit 0 [23].
Prolongs stop signal to give a precise stop independent of speed.
Sends an inverted stop signal when the precise stop function is activated in par. 1-83
Function
.
Precise stop inverse function is available for terminals 18 or 19.
Use when Precise ramp stop [0] is selected in par 1-83.
Increases reference value by percentage (relative) set in par. 3-12
Reduces reference value by percentage (relative) set in par. 3-12
Precise Stop Function
Precise stop function in par. 1-83
counter stop with or without reset. The counter value must be set in par. 1-84
Value
.
Use pulse sequence as either reference or feedback. Scaling is done in par. group 5-5*.
Enables a choice between one of the 4 ramps available, according to the table below.
Same as Ramp bit 0.
MG.33.AC.02 - VLT is a registered Danfoss trademark
®
VLT AutomationDrive FC 300 Operating
Ramp 2 Ramp down Time ) in the range 0 - par.
Ramp 2 Ramp down Time
) in the range 0 - par.
Shut down Catch up
0
1
0
1
Catch up/slow Down Value
Catch up/slow Down Value
acts as Counter stop or speed compensated
Instructions
0
0
1
1
Precise Stop
.
.
Precise Stop Counter