Rexroth Frequency Converter Efc - Bosch Rexroth EFC 3600 Operating Instructions Manual

Bosch Rexroth AG
Maintenance
14.3 Periodic Inspection
In addition to daily inspection, periodic inspection of frequency converters is also nec‐
essary. The inspection cycle should be less than 6 months. For operation details,
please see table below:
Inspection
Inspection item
category
Power supply Voltage
Power cable Power cable
Signal line Signal line
Crimp terminal
Terminal
and cable / line
connection Crimp terminal
and terminal block
Visual
appearance
Fan
Cooling system
Frequency
(radiator, inlet,
converter
outlet)
Printed circuit
board
DC bus capacitor
Connection
Accessories
Cable
Fig.14-2: Periodic inspection list
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DOK-RCON03-EFC-3600***-IT01-EN-P

Rexroth Frequency Converter EFC 3600

Inspection criteria
Specified in nameplate
No color change or
damage
No loose connection
No deformation
No color change or de‐
formation
No blockage or contami‐
nation
No blockage or foreign
matters
No dust or oil contami‐
nation
No leakage, color
change, crack or expan‐
sion with safety valve
shut down
No loose connection
No color change
damage
Solution
1-phase: 200~240 V
(-10 % / +10 %)
3-phase: 380~480 V
(-15 % / +10 %)
Replace cable
Replace signal line
Tighten crimp and termi‐
nal screw
Contact service engineers
Replace fan
Eliminate blockage and
clean fan
Eliminate blockage and
clear foreign matters
Clean printed
circuit board
Replace DC bus capacitor
(must be operated by
service engineers)
Tighten terminal screw
or
Replace cable