16 Maintenance
16.1 Safety Instructions
High electric voltage! Risk of death or severe
bodily injury by electric shock!
WARNING
●
Only those trained and qualified to work with or on electric equipment are
permitted to operate, maintain and repair this equipment.
●
Do not operate electric equipment at any time, even for brief measurements
or tests, if the equipment grounding conductor is not permanently connected
to the mounting points of the components provided for this purpose.
●
Before working with electric parts with voltage potentials higher than 50 V,
the device must be disconnected from the mains voltage. Ensure that the
mains voltage is not reconnected.
●
In the frequency converters, capacitors are used in the DC bus as energy
stores. Energy stores maintain their energy even when the supply voltage has
been cut off. Frequency converters have been dimensioned in such a way that
after the supply voltage was cut off, the voltage value falls below 50 V within
a discharging time of a maximum of 5 minutes.
16.2 Daily Inspection
Please conduct daily inspection as indicated in the table below in order to pro-
long the life cycle of frequency converters.
Inspection
category
Inspection item
Inspection criteria
Inspection
result
Ambient
conditions
Temperature
-10...55 ℃ (no frost or condensation)
Relative humidity
≤ 90 % (no condensation)
Dust, water
and leakage
No heavy dust or sign of leakage
(visual inspection)
Gas
No strange smell
Sound
No strange sound
Panel display
No error code
Converter
Fan
No blockage or contamination
Motor
Sound
No strange sound
Tab. 16-1: Daily inspection list
EFC x610 Series
Bosch Rexroth AG
Maintenance
DOK-RCON03-EFC-X610***-IT05-EN-P
315/389
