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How to Install
6.13 Electrical Installation and Control Cables
Terminal number
1+2+3
12
18
19
20
27
29
33
42
50
6
6
53
55
60
Table 6.4 Terminal Connections
Very long control cables and analog signals may, in rare
cases and depending on installation, result in 50/60 Hz
earth loops due to noise from mains supply cables.
If this occurs, break the screen or insert a 100 nF capacitor
between screen and chassis.
NOTE
The common of digital / analog inputs and outputs should
be connected to separate common terminals 20, 39, and
55. This will avoid ground current interference among
groups. For example, it avoids switching on digital inputs
disturbing analog inputs.
NOTE
Control cables must be screened/armoured.
56
VLT Micro Drive Design Guide
Terminal description
Terminal 1+2+3 - Relay1
Terminal 12 Supply
Terminal 18 Digital Input
Terminal 19 Digital Input
Terminal 20 Common Digital Ground
Terminal 27 Digital Input
Terminal 29 Digital Input
Terminal 33 Digital Input
Terminal 42 Analog Output/Digital
Output
Terminal 50 Supply for Analog Input
Terminal 53 Analog Input (Voltage or
Current)
Terminal 55 Common Analog Ground
Terminal 60 Current Input
®
MG02K102 - VLT
Parameter number
5-40
-
5-10
5-11
-
5-12
5-13
5-15
6-9*
-
3-15/6-1*
-
3-16/6-2*
is a registered Danfoss trademark
Factory default
No operation
+24 V DC
Start
Reversing
Common
Reset
Jog
Preset ref bit 0
No operation
+10 V DC
Reference
Common
Reference
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