Danfoss VLT AQUA Drive FC 200 Programming Manual page 80

Parameter Description
5-66 Terminal X30/6 Pulse Output Variable
Select the variable for readout on terminal X30/6.
This parameter is active when option module MCB 101 is
3 3 installed in the adjustable frequency drive.
Same options and functions as parameter group 5-6*.
Option:
[101]
[102]
[103]
[104]
[105]
[106]
[107]
[108]
[109]
[113]
[114]
[115]
[116]
NOTICE!
This parameter cannot be adjusted while the motor is
running.
5-68 Pulse Output Max Freq #X30/6
Select the maximum frequency on terminal X30/6 referring to
the output variable in 5-66 Terminal X30/6 Pulse Output Variable.
This parameter is active when option module MCB 101 is
mounted in the adjustable frequency drive.
Range:
5000 Hz
*
5-80 AHF Cap Reconnect Delay
Range:
25 s [1 - 120
*
s]
AHF Capacitor Connect Output Function for Digital and
Relay Outputs
Functional Description:
1. Connect capacitors at 20% nominal power
Hysteresis ±50% of the 20% nominal power
2.
(=min. 10% and max. 30% nominal power)
3. Off delay timer = 10 s. The nominal power must
be below 10% for 10 s to disconnect the
capacitors. If the nominal power goes above 10%
during the 10 s delay, the timer (10 s) restarts.
3-54
VLT
Function:
Reference Min-Max
Feedback +-200%
Motor cur. 0-Imax
Torque 0-Tlim
Torque 0-Tnom
Power 0-Pnom
Speed 0-HighLim
Torque +-160%
Out frq 0-Fmax
Ext. Closed-loop 1
Ext. Closed-loop 2
Ext. Closed-loop 3
Cascade Reference
Function:
[0 - 32000 Hz]
Function:
Delay time between two consecutive AHF
capacitor connections. Timer will start once
AHF capacitor disconnects and will connect
back once delay expires and drive power is
above 20% and below 30% of nominal power
(see detailed description below).
MG20O622 - VLT
®
AQUA Drive Programming Guide
4. The capacitor reconnect delay (default= 25 s with
a range from 1 s to 120 s, see 5-80 AHF Cap
Reconnect Delay) is used for the minimum off-
time for the AHF Capacitor Output function.
5. In case of power loss, the adjustable frequency
drive guarantees that the minimum off-time is
satisfied when power is restored.
100%
90%
80%
70%
60%
50%
40%
30% ....................................................................................................................................................................................................................
....................................................................................................................................................................................................................
20%
10% ...................................................................................................................................................................................................................
0%
On
10
Figure 3.28 Example of the output function
t represents the off delay timer (10 s).
1
represents the Capacitor Reconnect Delay (5-80 AHF Cap
t
2
Reconnect Delay).
When the nominal power of the adjustable frequency drive
exceeds 20%, the output function turns on. When the
power goes below 10%, there is an Off Delay Timer that
needs to expire before the output goes low; this is
represented by t
reconnect delay timer needs to expire before the output is
allowed to be on again, represented by t
the nominal power is above 30% and the relay does not
turn on.
®
is a registered Danfoss trademark
t
1
20 30 40 50 60 70 80 90 100 110 120 130
Time (s)
. After the output goes low, the capacitor
1
. When t
2
t
2
expires,
2