Danfoss VLT 2050 User Manual

MG.20.B6.02 – VLT is a registered Danfoss trademark
73
VLT
®
2000 Series
Section 1 Section 2 Section 3
404 Terminal 27 stop (INPUT 27)
Value:
Motor coasting (MTR.COASTnot) [0]
Quick stop (Q-STOPnot) [1]
DC-brake (DC-BRAKEnot) [2]
✭ Reset and motor coasting (RESET&COASTnot) [3]
Stop (STOPnot) [4]
Reset and start (RESET&START) [5]
Speed up (SPEED UP) [6]
Digital reference select (SPEED SELECT) [7]
Function:
Using this parameter (terminal 27) you can give the
motor various stop signals.
Description:
Motor coasting:
If 0 V is applied to terminal 27 the motor will be
coasting until standstill.
Quick stop:
If 0 V is applied to terminal 27 the motor will be
braking until standstill according to the ramp-down
time set in parameter 218.
A DC current brakes the motor after ramping down to
0, according to the setting of parameters 306-308.
DC brake:
If 0 V is applied to terminal 27 the motor will brake to
standstill according to the settings of parameters 306
and 308.
Reset and motor coasting:
If 0 V is applied to terminal 27 the motor will start
coasting and the VLT frequency converter is reset.
Stop = press:
A circuit breaker between terminals 12 and 27.
When opened briefly this circuit breaker causes
ramp-down to stop.
Reset and start:
This can be used as a start function when you use
terminals 18 and 19 to select a digital reference.
24 V applied to terminal 27 will make the frequency
converter reset and the motor ramp up to the set
reference
according to the ramp-up time set in
parameter 215.
(continued overleaf)
403 Terminal 19 reversing (INPUT 19)
Value:
✭ Reversing (REVERSING) [0]
Start reversing (LATCH START) [1]
No function (NO OPERATION) [2]
Speed down (SPEED DOWN) [3]
Digital reference select (SPEED SELECT) [4]
Reset (RESET) [5]
Function:
Using this parameter (terminal 19) you can e.g.
change the motor’s direction.
Description:
Reversing:
Reverses the motor, when 24 V is applied to terminal
19 and changes the rotation direction again when 0 V
is applied to the terminal.
Start reversing:
Reverses the motor, when 24 V is applied to terminal
19. The motor stops when 0 V is applied to the termi-
nal.
No function:
Locks the input.
Speed down:
This is used together with parameter 230. It is
possible to make the output frequency drop towards
f
MIN
, as long as 24 V is applied to terminal 19.
At 0 V applied to terminal 19, the output frequency in
question is maintained. See also parameter 402.
Digital reference select:
Together with parameter 402 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
Reset:
In case of alarm the VLT frequency converter can be
reset by applying 24 V to terminal 19.
✭ = Factory setting. Text in ( ) = Display text. The figures in [ ] are used in bus communication.
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Description of parameters
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Danfoss VLT 2050 Specifications

General

Brand	Danfoss
Model	VLT 2050
Category	Inverter
Language	English