Siemens SINAMICS SL150 6SL38655UM427AA02, Руководство по эксплуатации

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9.3.1.4 Checking the plug connections.
Regularly check the plug connections to ensure they are seated correctly and the contacts are
not corroded.
Note
The fiber-optic cables for the gating boards must be properly inserted in the connectors.
9.3.1.5 Checking the cable and screw terminals
● Check the cable and screw terminals regularly to ensure that they are secure.
● Tighten the screws if necessary. When doing this, comply with the specified torques
(Page 48).
● Check the cabling for defects.
● Replace any defective parts immediately.
9.3.1.6 Checking the cooling circuit
● Check the entire cooling circuit for leaks. If you find a leak in a pipe coupling, tighten the nut
by a ¼ turn
● Compare the measured conductivity value with the permissible conductivity value for the
system (≤ 0.6 µS/cm). You must replace the ion exchanger if this value is close to 1 µS / cm.
● Check the water level in the compensating chamber of the deionized water circuit. If the
level is too low, add some more water. If the level is too high, drain some water until the level
is correct.
9.4 Maintenance
9.4.1 Replacing a fan
CAUTION
Injury caused by rotating fan
If the converter is equipped with a temperature-controlled fan, the fan can run on even if the
power section is switched off. You can be injured if you touch the fan.
● Wait until the fan has shut down.
Maintenance
9.4 Maintenance
SINAMICS SL150 6SL38655UM427AA02
Operating Instructions Rev.201910281507 EXAMPLE
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