Danfoss VLT Instruction Manual page 46

4 Electrical installation
Terminal number
1+2+3
4+5+6
12
13
18
19
20
27
29
32
4
33
37
42
53
54
Table 4.18: Terminal connections
Very long control cables and analog signals may, in rare cases and depending on the installation, result in 50/60 Hz ground loops due to noise from line
power supply cables.
If this occurs, break the shield or insert a 100 nF capacitor between shield and chassis.
NOTE!
The common of digital / analog inputs and outputs should be connected to separate common terminals 20, 39, and 55. This will prevent
ground current interference among groups. For example, it prevents switching on digital inputs from disturbing analog inputs.
NOTE!
Control cables must be shielded/armored.
4.1.27 Switches S201, S202, and S801
Switches S201 (Al 53) and S202 (Al 54) are used to select a current (0-20
mA) or a voltage (0 to 10 V) configuration of the analog input terminals
53 and 54 respectively.
Switch S801 (BUS TER.) can be used to enable termination on the RS-485
port (terminals 68 and 69).
Please note that the switches may be covered by an option, if so equip-
ped.
Default setting:
S201 (AI 53) = OFF (voltage input)
S202 (AI 54) = OFF (voltage input)
S801 (Bus termination) = OFF
4-28
Terminal description
Terminal 1+2+3-Relay1
Terminal 4+5+6-Relay2
Terminal 12 Supply
Terminal 13 Supply
Terminal 18 Digital Input
Terminal 19 Digital Input
Terminal 20
Terminal 27 Digital Input/Output
Terminal 29 Digital Input/Output
Terminal 32 Digital Input
Terminal 33 Digital Input
Terminal 37 Digital Input
Terminal 42 Analog Output
Terminal 53 Analog Input
Terminal 54 Analog Input
MG.11.A9.22 - VLT
VLT ®
Parameter number
5-40
5-40
-
-
5-10
5-11
-
5-12/5-30
5-13/5-31
5-14
5-15
-
6-50
3-15/6-1*/20-0*
3-15/6-2*/20-0*
® is a registered Danfoss trademark
HVAC Drive Instruction Manual
Factory default
No operation
No operation
+24 V DC
+24 V DC
Start
No operation
Common
Coast inverse
Jog
No operation
No operation
Safe Stop
No operation
Reference
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