MG.20.B6.02 – VLT is a registered Danfoss trademark
17
VLT
®
2000 Series
Section 1 Section 2 Section 3
How to check connection of control cables
The VLT frequency converter must be connected so
that it is possible to control it via the different signal
inputs at the top of the enclosure.
Terminals 01-03: Relay output Max. 250 V, max. 2 A. Relay: Not activated
Terminal 12: Supply to digital inputs 24 V DC, max. 140 mA
Terminals 18-19: Digital inputs 0-24 V, R
i
=2 kohm (max. 37 V for 10 sec.)
27-29 (min. on-time 80 ms.)
Terminal 46: Digital output signal (open collector) Max. 24 V DC, max. 40 mA, min. 600 ohm
Terminal 50: Supply to 1 kohm potentiometer 10 V DC, max. 12 mA
Terminal 53 Analogue control voltage +0 - 10 V DC, R
i
=10 kohm, +10 - 0 V
Terminal 60: Analogue control current 0/4-20 mA, R
i
=226 ohm, 20-0/4 mA
Terminals 71/72: RS 232 standard bus 71 RXD, 72 TXD, 20 dig. ref.
Terminals 81/82: Used in connection with brake resistor
Terminal 20: Digital common Must be used as reference for all digital
signals
Terminal 55: Analogue common Must be used as reference for all analogue
signals.
Prefuses
Prefuses must be installed in the mains supply to the
frequency converter.
Cables
The cables to control signals and brake resistor must
be screened. It is recommended to use unscreened
motor cable.
Motor/mains cables (max. cable cross-section)
Mains supply 1/ 3 x 208/220/230/240 V Mains supply 3 x 380-460 V
2010 2015 2020 2030 2040 2050 2020 2025 2030 2040 2050 2060*
4 mm
2
for all VLT 2000 Series types 4 mm
2
for all VLT 2000 Series types
Control cables (max. cable cross-section)
Mains supply 1/ 3 x 208//220/230/240 V Mains supply 3 x 380-460 V
2010 2015 2020 2030 2040 2050 2020 2025 2030 2040 2050 2060*
1.5 mm
2
for all VLT 2000 Series types 1.5 mm
2
for all VLT 2000 Series types
How to check the grounding
The grounded line must be connected to terminal 94
(PE). If you use a thick cable this must be connected
to the 6 mm large screw (terminal 95) in the bottom of
the VLT frequency converter.
If you use screened cables, the screen must be con-
nected to the screen termination bracket of the VLT
frequency converter and brake resistor.
(Max. sizes)(Max. sizes)
(Max. sizes)(Max. sizes)
(Max. sizes)
Mains supply 1/3 x 208/220/230/240 V Mains supply 3 x 380-460 V
2010 2015 2020 2030 2040 2050 2020 2025 2030 2040 2050 2060*
10 A 16 A 20 A 20 A 20 A 25 A 16 A 16 A 16 A 16 A 16 A 20 A
After installation
*) VLT 2060: Max. 415V
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