Baumuller b maXX BM5800, Parameter Manual

Page: 98 / 816

Configuration
Parameter manual b maXX BM5800
Document No.: 5.16029.03 Baumüller Nürnberg GmbH
98
of 814
3.4
107.11
Standstill torque
Display of the motor standstill torque. The value displayed is read from motors with an
electronic identification plate and is for information only.
107.12
Power factor
Power factor (cos

) of the motor. The value displayed is read from motors with an elec-
tronic identification plate and is for information only.
107.13
Nominal frequency
Display of the motor nominal frequency in Hz. This value is required for the control sys-
tem. If the motor has no electronic identification plate, the nominal frequency must be en-
tered.
107.14
Magnetic current
Magnetizing current I
d
for asynchronous motors. If the motor has no electronic identifica-
tion plate, the magnetizing current must be entered. If the motor type is not known, I
d
can
be found from the identification plate / motor data sheet.

If Id is not known, it can be calculated approximately:
Where:

| I | = Motor nominal current (
Z
107.9
–
)

cos

n
= Power factor (
Z
107.12
–
)
k = 1.0 to 1.3
It corresponds to the nominal current I
d
at IPMSM (see
Z
Synchronous motor with interior
permanent magnet
–
on page 128). The motor constant K (
Z
171.12
–
) used for adjust-
ment of the MTPA characteristic can be calculated from the nominal current I (
Z
107.9
–
)
and the nominal current I
d
.
107.15
Slip frequency ( cold)
(This is relevant at asynchronous motors with an encoder if the temperature monitoring
is activated,
Z
128.2
–
bits 0 to 7)
Slip frequency of the motor at nominal torque current and nominal flux (magnetic flux =
100%) accordant to slip temperature (cold)
Z
107.17
–
. The parameters 107.15 and
Z
107.17
–
support the temperature adaption characteristic of the slip frequency. Refer to
"Slip frequency temperature actual value"
Z
19.30
–
.
I
d
I 1 k

n
cos
  
2
–

=