Danfoss VLT Micro Drive FC 51 Design Manual page 64

Programming
6-22 Terminal 60 Low Current
Range:
0.14 [0.00–
mA 20.00 mA]
*
6-23 Terminal 60 High Current
Range:
7 7
20.00 mA [0.00–20.00
*
mA]
6-24 Terminal 60 Low Ref./Feedb. Value
Range:
0.000 [-4999–4999] Enter analog input scaling value.
*
6-25 Terminal 60 High Ref./Feedb. Value
Range:
60.000 Hz or 50.000
Hz depending on
the setting in par.
0-03.
*
6-26 Terminal 60 Filter Time Constant
Range:
0.01 s [0.01–
*
10.00 s]
62
®
VLT Micro Drive FC 51
Function:
NOTICE
Set the value to a minimum of
2 mA to activate the live zero
timeout function in parameter 6-01
Live Zero Timeout Time.
This reference signal should correspond
to minimum reference value set in
parameter 6-24 Terminal 60 Low Ref./Feedb.
Value.
Enter the low current value.
Function:
This reference signal should
correspond to the high current value
set in parameter 6-25 Terminal 60 High
Ref./Feedb. Value.
Enter high current value.
Function:
The scaling value corresponding to the
low current set in parameter 6-22 Terminal
60 Low Current.
Function:
The scaling value
corresponding to the high
current set in parameter
6-23 Terminal 60 High
Current.
[-4999-4999] Enter analog input scaling
value.
Function:
A first-order digital low-pass filter time
constant for suppressing electrical noise in
terminal 60. A high time constant value
improves dampening, but also increases
time delay through the filter.
NOTICE
This parameter cannot be changed
while the motor is running.
Enter the time constant.
Danfoss A/S © 01/2016 All rights reserved.
7-20 Process CL Feedback Resources
Option: Function:
Select input to function as feedback
signal.
[0] No Function
*
[1] Analog Input 53
[2] Analog Input 60
[8] Pulse Input 33
[11] Local Bus
7-30 Process PI Normal/Inverse Control
Option: Function:
[0] Normal Feedback larger than setpoint results in a speed
*
reduction.
Feedback less than setpoint results in a speed
increase.
[1] Inverse Feedback larger than setpoint results in a speed
increase.
Feedback less than setpoint results in a speed
reduction.
7-31 Process PI Anti Windup
Option: Function:
[0] Disable Regulation of a given error continues even when
the output frequency cannot be increased/
decreased.
[1] Enable PI controller ceases from regulating a given error
*
when the output frequency cannot be increased/
decreased.
7-32 Process PI Start Speed
Range: Function:
0.0 Hz [0.0–200.0 Hz] Until the set motor speed has been
*
reached, the frequency converter
operates in open-loop mode.
7-33 Process PI Proportional Gain
Option: Function:
[0.01] 0.00–10.00 Enter the value for the proportional gain,
*
that is, the multiplication factor of the error
between the setpoint and the feedback
signal.
NOTICE
0.00=Off.
7-34 Process PI Integral Time
Range: Function:
9999.00 s [0.10– The integrator provides an increasing
*
9999.00 s] gain at a constant error between the
setpoint and the feedback signal. The
integral time is the time needed by the
integrator to reach the same gain as
the proportional gain.
MG02K402