VLT ® 2000 Series Description of parameters I 402 Terminal 18 start (INPUT 18) Value: ✭ Start (START) [0] Pulse start (LATCH START) [1] No function (NO OPERATION) [2] Speed up (SPEED UP) [3] Digital reference select (SPEED SELECT) [4] Reversing (REVERSING) [5] Reset and start (RESET&START) [6] Motor coasting and start (COAST/START) [7] Reversing: If the motor reverses when 24 V is applied to terminal 18, it will change direction again when 0 V is applied to the terminal. Reset and start: The function can be used as start when terminals 27 and 19 are used to select between the digital references and terminal 29 to change setup (8 digital speeds).
24 V applied to terminal 18 resets the VLT frequency converter and the motor ramps up to the set reference according to the ramp-up time set in parameter 215. Function: Using this parameter (terminal 18) you can give the motor various start signals. Description: Start: 24 V on terminal 18 will make the motor ramp up to the set reference. 0 V will make the motor ramp down to stop. Motor coasting and start: 24 V applied to terminal 18 makes the motor ramp up to the set reference. 0 V applied to terminal 18 sets the motor to coasting, running freely until it stops. This can be used in connnection with a mechanical brake. Pulse start: On selection of Press cont.
in parameter 402 and application of a pulse (24 V) to terminal 18, the motor wll ramp up to the set reference. Further pulses do not have any effect. Therefore the motor must be stopped via terminal 27 (parameter 404) No function: Locks the input. Speed up: This is used together with parameter 230. It is possible to make the output frequency increase towards f MAX as long as 24 V is applied to terminal 18. At 0 V on terminal 18 the output frequency in question is maintained. See also parameter 403. Digital reference select: Together with parameter 403 you can choose between four different digital references:
18/27 19 Terminal 0 0 Digital reference 1 1 0 Digital reference 2 0 1 Digital reference 3 1 1 Digital reference 4 ✭ = Factory setting. Text in ( ) = Display text. The figures in [ ] are used in bus communication. 72 MG.20.B6.02 – VLT is a registered Danfoss trademark