SKF MicroDosage System Assembly Instructions Manual page 44

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Page 44
o Clogged line to the lubrication point
o Deviations from the operating temperature
range
o Error in a metering valve
o Error in the flow sensor
The MDU only generates an error signal if the
presence of an error has been confirmed by
repeated checks.
The cause of the error is indicated by the
blinking pattern of the LEDs on the MDU
(see Chapter 9.2, Table 2).
Automatic calibration, Table 1
Event
Delay between switching
on and 1st calibration
Calibration interval
Calibration at temperature
change
MDR lubricant reservoir
Compressed
air feed
1
Parameter
1 min
4 h
5 Kelvin
Machine control unit
MDU micro-metering unit
3
2
24 V DC
Customer tool, e.g., high-performance spindle
5. Design and function
SKF microdosage system, Fig. 4
6
7
8