phytron LSS 26 - Use Limitation

How to Handle In-Vacuum and Cryo Stepper Motors
14 MA 1203-A010 EN
4.2 Use limitation
Derating formulas:
Continuous operation without overheating at 400 rev/min max. and 1/2*I
N in vacuum.
Short-term operation with higher current (I
on
) is possible depending on the duty cycle (ratio
t
on
to t
off
).
applies to speed <= 400 rev./min;
I
N
= nominal motor current;
I
on
>I
N
: overcurrent
How long may last the switch-on time t
on
?
How long may last the stop t
of
?
What is the maximum current during the I
on
switch-on phase?
condition: I
on=1,3 x
I
N and
t
on<=10s