Function:
Select the reference input to be used for the
first reference signal. Par. 3-15, 3-16 and 3-17
define up to three different reference signals.
The sum of these reference signals defines the
actual reference.
This parameter cannot be adjusted while the
motor is running.
3-16
Reference 2 Source
Value:
No function
[0]
Analog input 53
[1]
Analog input 54
[2]
Frequency input 29
[7]
Frequency input 33
[8]
Digital pot.meter
[20]
Analog input X30-11
[21]
Analog input X30-12
[22]
Analog Input X42/1
[23]
Analog Input X42/3
[24]
Analog Input X42/5
[25]
Ext. Closed-loop 1
[30]
Ext. Closed-loop 2
[31]
Ext. Closed-loop 3
[32]
Function:
Select the reference input to be used for the
second reference signal. Par. 3-15, 3-16 and
3-17 define up to three different reference
signals. The sum of these reference signals
defines the actual reference.
This parameter cannot be adjusted while the
motor is running.
4-10
Motor Speed Direction
Value:
Clockwise
[0]
Both directions
[2]
Function:
Selects the motor speed direction required.
When par. 1-00
Configuration Mode
is set to
Closed-loop
[3], the parameter default is
changed to
Clockwise
[0].
4-56
Warning Feedback Low
Value:
-999999.999 -
999999.999
-999999.999
Function:
Enter the lower feedback limit. When the
feedback falls below this limit, the display
reads Feedb Low. The signal outputs can be
programmed to produce a status signal on
terminal 27 or 29, and on relay output 01 or
02.
4-57
Warning Feedback High
Value:
Par. 4-56 - 999999.999
999999.999
Function:
Enter the upper feedback limit. When the
feedback exceeds this limit, the display reads
Feedb High. The signal outputs can be pro-
grammed to produce a status signal on termi-
nal 27 or 29, and on relay output 01 or 02.
4-64
Semi-Auto Bypass Feature
Value:
Off
[0]
Enabled
[1]
Function:
Select
Enabled
to start the semi-automatic by-
pass set-up and continue with the procedure
described above.
5-01
Terminal 27 Mode
Value:
Input
[0]
Output
[1]
VLT
®
HVAC Drive Instruction Manual
6. How to program the adjustable frequency
drive
MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
83
6