Inputs And Outputs - Danfoss VLT 2800 Series Operating Instructions Manual

Inputs and outputs

Digital inputs
Value:
No function
Reset
Coasting stop inverse
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
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
1. All functions on terminal 18 and 19 are controlled by
an interrupter, which means that the repetitive accu-
racy of the response time is constant. Can be used for
start/stop, setup 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, MI.28.CX.02.
Function:
In these parameters 302-307 Digital inputs it is possi-
ble to choose between the different enabled functions
related to the digital inputs (terminals 18-33).
= factory setting, () = display text, [] = value for use in communication via serial communication port
®
MG.27.A2.02 - VLT is a registered Danfoss trademark
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)
(FREEZE OUTPUT)
(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)
Description of choice:
No operation is selected if the frequency converter is
not to react to signals transmitted to the terminal.
Reset resets the frequency converter after an alarm;
however, a few alarms cannot be reset (trip locked)
without first disconnecting the mains supply and re-
connecting it. See table under List of warnings and
alarms. Reset is activated on the leading edge of the
signal.
Coasting stop inverse is used for making the frequency
converter "let go" of the motor immediately (output
®
VLT 2800 Series
1 1
27
18 19
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]
29 33
305 307
[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]
35