Glossary - Tecnotion TM3 Manual

Parameter Remarks
Winding type
Motor type, max voltage ph-ph
Ultimate force @ 10 K/s increase magnet @
25°C
Peak force @ 6 K/s increase magnet @
25°C
Continuous force water cooled 1 coils @ 100°C F
Continuous force coils @ 100°C F
1
Maximum speed @ U @ F
2
max c
Motor force constant I ≤ I
c
Motor constant coils @ 25°C
Ultimate current magnets @
25°C
Peak current magnets @
25°C
Continuous current water cooled 1 coils @ 100°C I
Continuous current 1 coils @ 100°C I
Back EMF ph-ph
peak
Resistance per phase coils @ 25°C
ex. cable
Induction per phase I < 0.6 I
p

Glossary

Symbol Unit Definition
See paragraph 2.1.1 Coil unit
A synchronous motor system has a linear relation between the current frequency and the movement frequency. Then the effective value of a sine
shaped alternating current voltage is indicated, together with the DC value which is square root 2 higher.
F N The force of the motor belonging to the ultimate current. This is the maximum force that the motor can reach.
u
F N The force of the motor belonging to the peak current. It is possible to deliver more force, this is the ultimate force.
p
N The continuous force with a 100% duty cycle and using the cooling channels of the motor. For this value the motor should be moving and its
cw
phases should be energized equally.
N The continuous force with a 100% duty cycle and the motor connected to a heat sink kept at 20°C. For this value the motor should be moving and
c
its phases should be energized equally.
v m/s The maximum speed the linear motor can achieve at continuous force. The actual value depends on the bus voltage and required force. Please
max
check the force/velocity diagrams in the Tecnotion simulation tool.
K N/A Ratio between generated force in newton and applied RMS current in ampere.
f rms
S N 2 /W Ratio between force in newton and dissipated heat in watt. A higher value of the constant implies that the motor dissipates less heat for the
generation of a certain amount of force. The value decreases at higher coil temperatures. This is caused by increased winding resistance at higher
temperature. S is defined as K²/3R
I A The ultimate current the motor can be run at to achieve the specified ultimate force. The coil temperature will rise with 10 K/s.
u rms
I A The peak current the motor can be run at to achieve the specified peak force. The coil temperature will rise with 6 K/s.
p rms
A The continuous current with a 100% duty cycle and using the cooling channels of the motor.
cw rms
A The continuous force with a 100% duty cycle and the motor connected to a heat sink kept at 20°C.
c rms
K V /m/s Back electromotive force. A linear motor, when operated, also acts as a generator. The back EMF describes the coefficient between the generated
e dc
voltage and the speed of the motor [V/m/s]. When the generated voltage is nearly equal to the bus voltage of the system the motor cannot run
any faster.
R Ω The resistance value of one phase or winding of the coil. This value can be verified via the motor cables, you will measure twice the catalog value
ph
because of the star point configuration of the phases/windings.
L mH The induction value in millihenry of one phase or winding of the coil. This value can be verified via the motor cables, you will measure twice the
ph
catalog value because of the star point configuration of the phases/windings. When the applied current is higher than 60% of the peak current,
the induction will become lower than the catalog value. L
.
ph
is equal to the values of L
ph sd
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and L .
sq
GLOSSARY
65