WARNING
Danger when components are incorrectly replaced
Incorrectly replacing components can result in death, serious injury, or material damage.
● Only replace components that are described in the following sections. All other
components may only be replaced by Siemens service personnel. In this case, contact the
Service Center.
9.6.1
Replacing the snubber circuit resistor
CAUTION
Water pressure hazard
If the water circuit is under pressure when you are working on it, you can injure yourself.
● The water circuit must always be in a no-pressure state before commencing work on it.
①
Electrical connection
②
Water connection
③
Fastening nuts
Figure 9-2
Replacing the snubber circuit resistor
1. Loosen the electrical connections
①
on the resistor.
2. Loosen the water hoses
②
.
3. Loosen the fastening nuts
③
and remove the resistor.
4. Insert the new resistor.
5. Tighten screws
③
with a torque of 3 Nm
6. Insert new O rings at the water connections.
Maintenance
9.6 Repairs
SINAMICS SL150 6SL38655UM427AA02
74
Operating Instructions Rev.201910281507 EXAMPLE