IFM VMB301 handleiding
Handleiding
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Condition monitoring sensor with CANopen interface VMB301
31
10 Bearing analysis (BearingScout™)
The device has an integrated bearing analysis using the demodulation method.
u Initially configure the relevant measuring axis (x, y or z) via the SDO (index 0x2053).
u Provide the necessary speed information (index 0x2020) for the machine to be monitored as an
RPDO via the machine control unit.
u Optionally configure the ordinal numbers (BPFO - outer ring, BPFI - inner ring, BSF - rolling
element) of the installed bearing via an SDO (index 0x2054).
w The precision of the measurement result is improved with store-specific monitoring.
If the ordinal numbers are not configured in the device (a value below 0x2054 is 0), a generic
position value is formed by means of demodulation.
w In this case, it is not necessary to enter a machine speed.
1
2
3
1: Damage frequency (outer ring) =
BPFI (Index 0x2054 / Subindex 0x02* Speed (Index 0x2020)
2: Damage frequency (inner ring) =
BPFO (Index 0x2054 / Subindex 0x01) * Speed (Index 0x2020)
3: Damage frequency (rolling element) =
BSF (Index 0x2054 / Subindex 0x03) * Speed (Index 0x2020)
The measurement axis for the bearing calculation should be in the direction of the main
vibration. In most cases, this is radial to the shaft axis, directly at the bearing.
The speed information at the bearing position must be taken into account if the frequency
factors are configured.
For a narrow-band bearing analysis, it is recommended to use twice the damage frequency of
the rolling element (BSF), as the damage contact on the inner and outer ring occurs twice per
revolution.
10.1 Object directory (BearingScout™)
Index Subindex
Name
(Object)
Type Access Default value
PDO map-
ping
Capability
Selection
options
0x2020 0x00 Speed of the machine /
component
u16 rww 3000 rpm Optional as
RPDO
120…30000
rpm
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Productinformatie
| Merk | IFM |
| Model | VMB301 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 3793 MB |
