Danfoss VLT 5016 Operating Instructions

VLT
®
5000 Series
Programming
328 Pulse feedback, max. frequency
(PULSE FEEDB MAX)
Value:
100 - 65000 Hz at terminal 33
✭ 25000 Hz
Function:
This is where to set the feedback value that is to
correspond to the maximum feed back value.
Description of choice:
Set the desired feedback value.
329 Encoder feedback pulse/rev.
(ENCODER PULSES)
Value:
128 pulses /rev. (128)
[128]
256 pulses /rev. (256)
[256]
512 pulses /rev. (512)
[512]
✭1024 pulses /rev. (1024)
[1024]
2048 pulses /rev. (2048)
[2048]
4096 pulses /rev. (4096)
[4096]
This value can also be set between 1-4096 pulses/rev.
Function:
This is where to set the encoder pulses per revolution
that correspond to the motor rpm.
This parameter is only available in Speed control,
closed loop and in Torque control, speed
feedback (parameter 100).
Description of choice:
Read the correct value from the encoder. Pay attention
to the speed limitation (rpm) for a given number of
pulses/rpm, see the drawing below:
The encoder used is to be of the Open Collector
PNP 0/24 V DC type (max. 20 kHz) or a Push-Pull
circuit 0/24 V DC (max. 65 kHz).
330 Freeze reference/output function
(FREEZE REF/OUTP.)
Value:
✭No operation (NO OPERATION)
[0]
Freeze reference (FREEZE REFERENCE)
[1]
Freeze output (FREEZE OUTPUT)
[2]
Function:
In this parameter it is possible to freeze either
the reference or the output.
Description of choice:
Freeze reference [1] freezes the actual reference.
The frozen reference is now the basis for Speed
up and Speed down.
Freeze output [2] freezes the actual motor frequency
(Hz). The frozen frequency is now the basis for
Speed up and Speed down.
NB!:
If Freeze output is active, the frequency
converter cannot be stopped via terminals
18 and 19, but only via terminal 27 (to
be programmed for Coasting stop, inverse [0] or
Reset and coasting stop, inverse [1]).
After Freeze output, the PID integrators are reset.
345 Encoder loss timeout
(ENC LOSS TIMEOUT)
Value:
0 - 60 sec.
✭ 1sec.
Function:
If the encoder signal is interrupted from terminal 32 or 33
the function selected in parameter 346 will be activated.
If the encoder feedback signal is different from the
output frequency +/- 3 x nominal motor slip the
encoder loss function will be activated.
An encoder loss timeout can occur even if the encoder
works all right. Check the motor parameter in group
100 if no error can be found on the encoder.
The Encoder loss function is only active in Speed
control, closed loop [1] and Torque control, speed
feedback [5], see parameter 100 Configuration.
Description of choice:
Set the required time.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
MG.51.A9.02 - VLT is a registered Danfoss trademark
135

Danfoss VLT 5016 Specifications

General

Brand	Danfoss
Model	VLT 5016
Category	DC Drives
Language	English