Inputs And Outputs - Danfoss VLT 2800 Design Manual

Programming

4.4 Inputs and Outputs

Digital inputs
Value:
No function
Reset
Coasting stop inverse
4 4
Reset and coasting
inverse
Quick-stop inverse
DC braking inverse
Stop inverse
Start
Pulse start
Reversing
Reversing and start
Start clockwise
Start anti-clockwise
Jog
Freeze reference
Freeze output frequency (FREEZE OUTPUT)
Speed up
Speed down
Catch-up
Slow-down
Ramp 2
Preset ref, LSB
Preset ref, MSB
Preset reference on
Thermistor
Precise stop, inverse
Precise start/stop
Pulse reference
Pulse feedback
Pulse input
Selection of Setup, lsb
Selection of Setup, msb
Reset and start
Pulse counter start
Table 4.2 Output for Digital Inputs 18, 19, 27, 33- Parameter 302, 303, 304, 307
1 All functions on terminals 18 and 19 are controlled by an interrupter, which means that the repetitive accuracy of the response time is constant.
Can be used for start/stop, set-up switch and especially for changing digital preset, i.e. to obtain a reproducable stop point when using creep
speed. For further information, see VLT 2800 Precise Stop Instruction.
Function:
In the parameters 302-307 Digital inputs it is possible to
select between the different enabled functions related to
the digital inputs (terminals 18-33).
Description of choice:
Select No operation if the frequency converter is not to
react to signals transmitted to the terminal.
84
Design Guide
Term. no.
par. no.
(NO OPERATION)
(RESET)
(MOTOR COAST INVERSE)
(RESET AND COAST INV.)
(QUICK-STOP INVERSE)
(DC-BRAKE INVERSE)
(STOP INVERSE)
(START)
(LATCHED START)
(REVERSING)
(START REVERSING)
(ENABLE FORWARD)
(ENABLE REVERSE)
(JOGGING)
(FREEZE REFERENCE)
(SPEED UP)
(SPEED DOWN)
(CATCH-UP)
(SLOW-DOWN)
(RAMP 2)
(PRESET REF, LSB)
(PRESET REF, MSB)
(PRESET REFERENCE ON)
(THERMISTOR)
(PRECISE STOP INV.)
(PRECISE START/STOP)
(PULSE REFERENCE)
(PULSE FEEDBACK)
(PULSE INPUT)
(SETUP SELECT LSB)
(SETUP SELECT MSB)
(RESET AND START)
(PULSE COUNTER START)
Danfoss A/S © Rev. May/2014 All rights reserved.
27
18 1) 19 1)
302 303 304
[0] [0] [0]
[1] [1] [1]
[2] [2] [2]
[3] [3]
[3]
[4] [4] [4]
[5] [5] [5]
[6] [6] [6]
[7] [7]
[7]
[8] [8] [8]
[9] [9]
[9]
[10] [10] [10]
[11] [11] [11]
[12] [12] [12]
[13] [13] [13]
[14] [14] [14]
[15] [15] [15]
[16] [16] [16]
[17] [17] [17]
[19] [19] [19]
[20] [20] [20]
[21] [21] [21]
[22] [22] [22]
[23] [23] [23]
[24] [24] [24]
[25] [25] [25]
[26] [26]
[27] [27]
[31] [31] [31]
[32] [32] [32]
[33] [33] [33]
[34] [34]
Reset resets the frequency converter after an alarm;
however, a few alarms cannot be reset (trip locked)
without first disconnecting the mains supply and
reconnecting it. See Table 5.7 for more details. Reset is
activated on the leading edge of the signal.
Coasting stop inverse is used for making the frequency
converter release the motor immediately (output
29 33
305
[0]
[0]
[1] [1]
[2] [2]
[3] [3]
[4] [4]
[5] [5]
[6] [6]
[7] [7]
[8] [8]
[9] [9]
[10] [10]
[11] [11]
[12] [12]
[13]
[13]
[14] [14]
[15] [15]
[16] [16]
[17] [17]
[19] [19]
[20] [20]
[21] [21]
[22] [22]
[23] [23]
[24] [24]
[25]
[28]
[29]
[30]
[31] [31]
[32] [32]
[33] [33]
MG27E402