Emotron VFX 2.0 User Manual

Emotron AB 01-4429-01r2 Functional Description 85
Fig. 66 Shape of acceleration ramp
Deceleration Ramp Type [338]
Sets the ramp type of all deceleration parameters in a param-
eter set Fig. 67.
Communication information
Fig. 67 Shape of deceleration ramp
Start Mode [339]
Sets the way of starting the motor when a run command is
given.
Communication information
Spinstart [33A]
The spinstart will smoothly start a motor which is already
rotating by catching the motor at the actual speed and con-
trol it to the desired speed. If in an application, such as an
exhausting fan, the motor shaft is already rotating due to
external conditions, a smooth start of the application is
required to prevent excessive wear. With the spinstart=on,
the actual control of the motor is delayed due to detecting
the actual speed and rotation direction, which depend on
motor size, running conditions of the motor before the
Spinstart, inertia of the application, etc. Depending on the
motor electrical time constant and the size of the motor, it
can take maximum a couple of minutes before the motor is
caught.
Default: Linear
Selection: Same as menu [337]
Modbus Instance no/DeviceNet no: 43108
Profibus slot/index 169/12
Fieldbus format UInt
Modbus format UInt
rpm
t
Linear
S-curve
338 Dec Rmp
Stp Linear
A
t
Linear
S-curve
Default: Normal DC
Fast 0
The motor flux increases gradually. The
motor shaft starts rotating immediately
once the Run command is given.
Normal DC 1
After a Run command the motor will be
magnetised first and the stator resistance
is measured. Depending on the motor time
constant and the size of the motor it can
take up to 1.3 s before the motor shaft
starts to rotate. This will provide better con-
trol of the motor when starting.
Modbus Instance no/DeviceNet no: 43109
Profibus slot/index 169/13
Fieldbus format UInt
Modbus format UInt
Default: Off
Off 0
No spinstart. If the motor is already running
the VSD can trip or will start with high current.
On 1
Spinstart will allow the start of a running
motor without tripping or high inrush currents.
339 Start Mode
Stp Normal DC
A
33A Spinstart
Stp Off
A

Emotron VFX 2.0 Specifications

General

Brand	Emotron
Model	VFX 2.0
Category	DC Drives
Language	English