VLT ® 2000 Series I 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. After installation 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. Section 1 Section 2 Section 3 I Prefuses Prefuses must be installed in the mains supply to the frequency converter. (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 I Cables The cables to control signals and brake resistor must be screened. It is recommended to use unscreened motor cable. If you use screened cables, the screen must be con- nected to the screen termination bracket of the VLT frequency converter and brake resistor. 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 *) VLT 2060: Max. 415V I 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. MG.20.B6.02 – VLT is a registered Danfoss trademark 17