Parker EY Series - Page 34

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
NN
2
max2max
*=
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
nn
U
U
PP
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
2max
=
=
WP
n
2826
400
360
*3140
2
=
=
Nm
M
n
3
.
6
60
4278
**2
2826
2
==
π