VLT® 5000 Crane
■
Crane Functions
■
Introduction to Crane Parameters
This parameter group contains all the crane specific
parameters making the VLT 5000 Crane stand
out from other VLT products.
It is important to notice that these
parameters only should be handled by
skilled personnel as wrong handling
may cause serious accidents!
701 LOAD LOW
Value:
0 - 5000 RPM
✭
Depends on unit
Function:
The values for Load Low are set in this parameter
in RPM. If the speed set for the load contact is
exceeded, the frequency converter will trip.
Description of choice:
The value of parameter 701 may only be higher or
equal to the value of parameter 702.
702 LOAD HIGH
Value:
0 - 1250 RPM
✭
Depends on unit
Function:
The values for Load High are set in this
parameter in RPM.
If the speed set for the load contact is exceeded,
the frequency converter will trip.
703 LOAD MONITORING
Value:
Disable (DISABLE)
[0]
✭
Enable (ENABLE)
[1]
Function:
Load Monitoring of load contacts 1 and 2 can be
either disabled or enabled in this parameter.
704 LOW SPD. AT ERROR
Value:
-200 - 200 RPM
✭
50 RPM
Function:
With this parameter you can choose the lowering
speed at
brake fault 1
, which is when the system
brake cannot hold the load.
705 BRAKE ON RPM
Value:
5 - 50 RPM
✭
20 RPM
Function:
This parameter allows choosing the min. speed at
which the system brake signal of relay 1-3 must be
removed (the system brake takes over the load).
707 HOIST DIRECTION
Value:
✭
0 (FORWARD)
[0]
1 (BACKWARD)
[1]
Function:
In this parameter the direction, in which the motor
is to rotate during hoisting, is set.
708 START TORQUE
Value:
0 - 170%
✭
100%
Function:
This parameter allows choosing the start torque
for the motor when taking over the load from the
system brake. Set the start torque in % of the
rated motor torque set in the software.
709 RAMP TORQUE
Value:
0.0 - 2 SEC
✭
0.2 SEC
Function:
With this parameter the build-up time of the
start torque is set.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.50.N4.02 - VLT is a registered Danfoss trademark
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