Danfoss VLT series Programming Guide

Illustration 5.77 Torque Segment
Sync segment
The Sync segment has the following properties:
•
Parameters
- Start position:
Species the axis position
at the beginning of the segment,
relative to the End position of the
previous segment. If the parameter is
left blank (unspecied), the logical CAM
position from the previous segment is
used as the starting position.
- Velocity ratio: Species the velocity of
the axis during this segment. The
velocity is calculated as a ratio between
the axis and the guide value (rev/rev).
The velocities of all segments that are
connected by the same node should be
the same to ensure smooth movement.
Incorrect parameterization results in a
jump in velocity.
- Acceleration: Species the acceleration
of the axis when increasing the velocity.
Parameterized jumps may occur in the
acceleration when 2 succeeding
segments have dierent End acceleration
and Start acceleration values.
- Deceleration: Species the deceleration
of the axis when decreasing the velocity.
- Torque limit: Species the maximum
torque used during this segment. The
value is given in mNm.
The sync segment is shown as a P0 polynomial (constant
position, zero velocity). For fast visual identication, sync is
shown in the middle of the segment (see Illustration 5.78).
Illustration 5.78 Sync Segment
PWM o segment
The PWM o segment does not contain specic properties.
The duration of the segment is used for calculating the
segment length.
The PWM o segment is not shown as a curve. Instead it is
denoted by a grayed-out area between its preceding and
succeeding nodes. This visualization style implies the
undened behavior of the segment.
For quick visual identication, “pwm o” is shown in the
middle of the segment (see Illustration 5.79).
Illustration 5.79 PWM O Segment
Friction segment
The Friction segment has the following properties:
•
Parameters
- Start position: Species the axis position
at the beginning of the segment,
relative to the end position of the
previous segment. If the parameter is
left blank (unspecied), the logical CAM
position from the previous segment is
used as the starting position.
- Velocity high: Velocity of the axis during
this segment.
Operation with ISD Toolbox Programming Guide
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Danfoss VLT series Specifications

General

Series	VLT
Category	DC Drives
Output Voltage	0-100% of input voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit, Ground Fault
Communication Interfaces	Profibus, CANopen
Enclosure Rating	IP20, IP21, IP55, IP66
Cooling Method	Forced Air Cooling, Convection Cooling
Control Mode	Sensorless Vector, Closed Loop Vector
Ambient Temperature	-10°C to +50°C (14°F to 122°F)