Malfunctions, Causes, And Remedies; Questions And Answers On Using The; Skf Microdosage System - SKF MicroDosage System Assembly Instructions Manual

9. Malfunctions
9.2

Malfunctions, causes, and remedies

Display
Error LED is off
Error LED blinks red in combination with
one or more green OUT LEDs
Error LED is on
9.3 Questions and answers on using the SKF microdosage system
Question
1 What happens if the compressed air
supply for the lubricant reservoir is
below 4 bar and is only 3.5 bar?
2 What happens if the operating tempera-
ture is below the specified limit of 10°C?
Fault status
No error
Volumetric flow error
Fault
Answer
The microdosage system typically functions properly even with a somewhat lower compressed air
supply. The automatic calibration compensates for changes in operating parameters such as tempe-
rature, compressed air, and oil viscosity in a wide range.
However, in a worst-case scenario for the other parameters such as low temperature and high oil
viscosity, it is possible that the automatic calibration can no longer compensate for the deviations.
The microdosage system typically functions even at lower temperatures. At temperatures below
10°C, it must be ensured that the kinematic viscosity of the oil does not exceed the limit values
provided in the data sheet.
Fault output Cause
High signal 24 VDC -
Signal intervals of Critically low lubricant level,
250 ms low signal air in the system, clogged capillary line,
250 ms high signal compressed air absent or insufficient
Low signal 24 VDC Hardware error
Questions and answers, Table 3, Part 1 of 2
EN
Page 59
Fault notification, Table 2