29
VLT
®
3500 HVAC
MG.35.B1.02 – VLT is a registered Danfoss trademark
Section 1Section 1Section 1Section 1Section 1
Section 2Section 2Section 2Section 2Section 2
Section 3Section 3Section 3Section 3Section 3
Section 4Section 4Section 4Section 4Section 4
Example 6:
A ventilation system is to be run at 6 fixed speeds,
depending on the time of the day or night.
Max. speed is 60 Hz.
1. Speed 6 Hz (10%)
2. Speed 12 Hz (20%)
3. Speed 18 Hz (30%)
4. Speed 24 Hz (40%)
5. Speed 42 Hz (70%)
6. Speed 60 Hz (100%)
■
Function
Parameter
Parameter- Data value
no.
value
no.
Choice of set-up
001
MULTISETUP
[5]
Choice of set-up
400
SETUP SELECT
[3]
Digital reference choice
406
DIGITAL REF.
[0]
Set-up 1
Max. frequency
202
60 Hz
Digital reference 1
205
10%
Digital reference 2
206
20%
Digital reference 3
207
30%
Digital reference 4
208
40%
Set-up 2
Max. frequency
202
60 Hz
Digital reference 1
205
70%
Digital reference 2
205
100%
The following must be programmed:
How to activate different speeds
Terminal
Set-up
Digital reference
33
32
16
1
2
1
2
3
4
0
0
0
X
0
10%
0
0
0
0
1
0
X
0
0
20%
0
0
1
0
0
X
0
0
0
30%
0
1
1
0
X
0
0
0
0
40%
0
0
1
0
X
70%
0
0
0
0
1
1
0
X
0
100% 0
0
"1" means that 24 V DC is connected to the terminal.
NB!:
NB!:
NB!:
NB!:
NB!:
Screen for control cables must be connected
as described in the chapter on EMC-correct
installation.
All settings are based on factory settings; however,
motor data settings (parameters 104, 105 and 107)
(or the Quick Set-up menu items 1, 2 and 3) are to be
adjusted to the motor connected.
1 = Set-up choice
2 = Start/stop
3 = Digital reference choice
4 = Digital reference choice
2.7 installation examples