VLT ® 2000 Series I How to connect control signals You can connect the control signals in different ways on the VLT frequency converter. The control signals can be connected to the two terminal strips at the top of the enclosure. Each terminal number is based on the survey on page 42. How to install your VLT The control signals can be connected as follows: Terminal 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 millisec.) Terminal 46: Signal for motor frequency/current Max. 24 V DC, max. 40 mA, min. 600 ohm Terminal 50:
Supply to 1 kohm potmeter 10 V DC, max. 12 mA Terminal 53: Analogue input voltage +0-10 V DC, R i = 10 kohm, +10 - 0 V Terminal 60: Analogue input current 0/4-20 mA, R i = 226 ohm, 20 - 0/4 mA Terminals 71/72 RS 232 standard 71 RXD, 72 TXD, 20 dig. ref. Terminal 20: Digital frame Must be used together with all terminals except for terminals 50, 53 and 60. Terminal 55: Analogue frame Must be used together with terminals 50, 53 and 60 Section 1 Section 2 Section 3 For a description of terminals and how to program the various parameters, see chapter 4.
Terminal 18/402 # Start Latched No Speed Speed Reversing Reset Motor coasting/ Terminal 19/403 # Reversing Start No Speed Speed Reset start function up select and start start Terminal 27/404 Motor Quick DC # Reset and Stop Reset Speed Speed reversing function down select coasting stop braking motor coasting and start up select Terminal 29/405 # Jog Start Digital Pulse Pulse Pulse Select Reset Reversing Speed (Jog) reference 100 Hz 1 kHz 10 kHz setup down # For factory setting of terminal function, see page 105. MG.20.B6.02 – VLT is a registered Danfoss trademark 43