SMA CBL-DC-CMB1-10 - Manual (Page 22)

CBL-DC-CMB1-10
22 PHOENIX CONTACT 106183_en_00
7.1 Servicing with the power supply disconnected
Visual inspection of cabling and components
– Check the CBL-DC-CMB1-10 for visible damage. Only operate the device in a fault-free
state that ensures operational reliability.
– Check all components, cables, terminal points, conductor connections, and markings
regularly and compare these to the circuit diagram and associated documentation.
– Check the strain relief of the cables.
– Check that all cable glands are fixed securely and sealed.
– Check the cable routing and bending radii.
– Check the cables, cable connections, and components for signs of overheating, e.g.,
discoloration or deformation. Replace any affected components and cables where nec-
essary. The source/trigger of overheating must be identified before the device can be
started up again and returned to a safe condition.
– Check the tightening torques of all connections.
Tighten any loose connections taking into account the maximum torque (see „Torques
for conductive connections“).
– Check all connections for a secure fit and correct functioning.
– Perform this check at least once a year.
– Parts and components that are subject to frequent use/loads must be checked at short-
er intervals.
Housings and seals
– Check the housing for visible damage and corrosion.
– Remove any soiling. Refer to the information in the Cleaning section.
– Check that the housing doors lock correctly and also check the function of the lock.
– Check that the doors open and close correctly. If necessary, lubricate the hinges.
– Check that the housing is sealed and ensure that there is no condensation in the interi-
or.
– All seals must be maintained at regular intervals to ensure that the housing offers the
appropriate degree of protection.
– Check the seals for deformation, cracks, and soiling.
WARNING: Dangerous contact voltage
– Before carrying out any servicing work on the device, disconnect the power.
– With load break switch:
Turn the load break switch to position „0 OFF“. This interrupts the DC current of
the CBL-DC-CMB1-10.
– Without load break switch:
Disconnect the DC circuit at the inverter. This interrupts the DC current of the
CBL-DC-CMB1-10. Please note the instructions in the manual of the manufac-
turer.
– Open the fuse holder of the fuse modular terminal blocks in the CBL-DC-CMB1-
10 to disconnect the corresponding string current.
Warning: Never open the fuse terminal blocks under load.
– Check the fuses and replace them when necessary.
– All servicing work must only be carried out by qualified personnel who are familiar
with the necessary safety precautions.