Maintenance
117
Quick connectors (Frame R8i and up)
1. Read and repeat the steps in section Safety instructions on page 115.
2. Open the cabinet doors.
3. Extract a supply module or inverter module from the cabinet. See section Power
module replacement (Frame R8i and up) on page 127. Obey the safety
instructions when you handle the heavy module!
4. Check the tightness of the cable connections at the quick connector. Use the
tightening torque table in chapter Technical data.
5. Clean all contact surfaces of the quick connector and apply a layer of suitable joint
compound (e.g. Isoflex
®
Topas NB 52 from Klüber Lubrication) onto them.
6. Re-insert the supply/inverter module.
7. Repeat steps 3 to 6 for all remaining supply and inverter modules.
8. On frame R8i units (with ALCL-1x-x LCL filter), repeat steps 3 to 6 for the LCL
filter module.
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