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Switch-on conditions with water-cooled drives
Before switching on the drive for the first time, you must reduce the
conductivity of the de-ionized water circuit to < 1 µS. After filling the
re-cooling unit, switch it on for several hours before switching on the
drive. The conductivity reduction may also be necessary if the drive
has been out of service for an extended period (such as mainte‐
nance/revision times).
Required tools
To install the connections, you will require:
● Spanner or socket spanner (w/f 10)
● Spanner or socket spanner (w/f 13)
● Spanner or socket spanner (w/f 16/17)
● Spanner or socket spanner (w/f 18/19)
● Hexagon-socket spanner (size 8)
● Torque spanner, max. 50 Nm
● Screwdriver, size 2
● Screwdriver, Torx T20
● Screwdriver, Torx T30
Checklists and forms
C.2 Checklist for electrical installation
SINAMICS SM150 6SL3845-2NN41-8AD2
180 Operating Instructions Rev.201910281310 EXAMPLE
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