Baumuller b maXX BM3000 - Maximum Permissible Speed (Electrical Conditioned)

Configuration
Parameter manual b maXX BM3000
Document no.: 5.12001.07 Baumüller Nürnberg GmbH
114
of 820
4.4
Figure 67: Torque threshold
4.4.2.5 Maximum permissible speed (electrical conditioned)
The overvoltage limit at the converter (U
zk,max
) sets the following limit to the maximum
permissible speed of the synchronous machine.
with
U
zk,max
= 780 V for BM3200 and BM3300 (depending on Z130.29–)
K
e (cold)
:K
e
factor for the cold machine in idle speed in V / 1000 min
-1
(independent 
of the value noted in parameter Z107.20–)
Without additional safety precautions the operating of the motor with speed greater than
n
emax
is not permitted.
t [sec ]
|M|
[Nm]
0
1
Status bit
(P138.25 bit 0)
Threshold
M
(P138.24)
act
|M
(P138.21)
|
n
emax
1000
K
ecold
------------------
U
zk max
2
------------------
=
DANGER!
Risk of fatal injury from electrical current!
The overvoltage limit at converter is passed over.
Therefore:
m Never operate the motor without additional safety precautions over the electrical
conditioned maximum permissible speed.