Danfoss VLT 5000 FLUX User Manual

VLT
®
5000 FLUX
Description of choice:
The upper signal limit of the motor current, I
HIGH
,must
be programmed within the normal working range of the
frequency converter. See drawing at parameter 223.
225 Warning: Low speed
(WARN. SPEED LOW)
Value:
0 - parameter 226
✭ 0rpm
Function:
When the motor speed is below the limit, n
LOW
,
the display indicates SPEED LOW.
The signal outputs can be programmed to produce a
status signal on terminal 26 or 46 and on relay output
01 or 04 (parameter 319, 321, 323 or 326).
Description of choice:
The lower signal limit of the motor speed, n
LOW
,
must be programmed within the normal working
range of the frequency converter.
See drawing at parameter 223.
226 Warning: High speed
(WARN. SPEED HIGH)
Value:
parameter 225 - parameter 202
✭ 20.000 rpm
Function:
When the motor speed is above the limit, n
HIGH
,
the display will indicate SPEED HIGH.
The signal outputs can be programmed to produce a
status signal on terminal 26 or 46 and on relay output
01 or 04 (parameter 319, 321, 323 or 326).
Description of choice:
The upper signal limit of the motor speed, n
HIGH
,
must be programmed within the normal working
range of the frequency converter.
See drawing at parameter 223.
234 Motor phase monitor
(MOTOR PHASE MON)
Value:
✭Enable (ENABLE)
[0]
Disable (DISABLE)
[1]
Function:
In this parameter it is possible to select monitoring
of the motor phases.
Description of choice:
If Enable is selected, the frequency converter
will react on a missing motor phase which will
result in alarm 30, 31 or 32.
If Disable is selected, no alarm is given if a motor phase
is missing. The motor can be damaged/overheated if it
runs on only two phases. It is therefore recommended
to keep the missing motor phase function ENABLED.
235 Phase Loss Monitor
(PHASE LOSS MON.)
Value:
Disable (DISABLE)
[0]
✭Enable (ENABLE)
[1]
Function:
The input phases are monitored for phase
loss by this selection.
Description of choice:
If Enable is selected, the frequency converter will react
on a missing input phase which will result in alarm 4.
If Disable is selected, no alarm is given if a supply
phase is missing. The frequency converter can
be damaged when operating with a missing input
phase. It is therefore recommended to keep the
phase loss monitor ENABLED.
236 Low Speed current
(LOW SPEED CURRENT)
Value:
0 - max 255% of nominal motor current
Parameter 105.
✭ 100%
Function:
This function is enabled when parameter 100 =
SPEED OPEN LOOP only. VLT 5000 FLUX is running
with constant current through motor below 10 Hz.
When speed is above 10 Hz, the motor flux model
in the drive will control the motor. Parameter 236
is automatically adjusted by parameters 221 and /
or parameter 222, depending on which of the two
parameters has the highest value. The current in
parameter 236 is composed of the torque generating
current and the magnetizing current.
Ex. Parameter 221 Torque limit for motor mode is set
to 100% and parameter 222Torque limit for generating
mode is set to 60%, parameter 236 will automatically
be set to about 127%, depending on the motor size.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.55.A6.02 - VLT is a registered Danfoss trademark
86

Danfoss VLT 5000 FLUX Specifications

General

Brand	Danfoss
Model	VLT 5000 FLUX
Category	DC Drives
Language	English