Parker EY Series, Техническое руководство

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34 – Pvd3675_Gb_Ey_Septembre_2017
Maximum speed:
The former maximum speed N
max
= 4800 rpm obtained with U
n
=400 V
rms
and a speed
N
n
=4800 rpm leads to the new maximum speed N
max2
given as follows:
n
n
N
N
N N
2
max 2 max
*
=
N.B.
If the rated voltage increases (U
n2
> U
n
), the new rated speed N
n2
and the new maximum
speed N
max2
will be greater than the former ones N
n
and N
max
. Moreover you will have to
check that the drive still shows able to deal with the new maximum electric frequency.
Warning: If the main supply decreases, you must reduce the maximum
speed accordingly in order not damage the motor.
In case of doubt, consult us.
Rated power:
The former rated power P
n
=3140 W obtained with U
n
=400 V
rms
to the new rated power
P
n2
given as follows:
n
n
n n
U
U
P P
2
2
*
=
Rated torque:
The former rated torque M
n
= 6.25 Nm obtained with U
n
=400 V
rms
leads to the new rated
torque M
n2
given as follows:
60
* * 2
2
2
2
n
n
n
N
P
M
π
=
rpm N 4278
4800
4278
* 4800
2 max
= =
W P
n
2826
400
360
* 3140
2
= =
Nm M
n
3 . 6
60
4278 * * 2
2826
2
= =
π