Note Regarding Fiber-Optic Cables; Provide Fuse Protection For External Control Voltage - Siemens SINAMICS G180 Installation And Operating Instructions Manual

Safety information

2.13 Provide fuse protection for external control voltage

2.12

Note regarding fiber-optic cables

Fiber-optic cable systems are deployed in some inverters. Please observe the following
warning.
Figure 2-3
Erroneous pulses in fiber-optic cables
Erroneous pulses in the fiber-optic cables caused by camera flash lights can result in
malfunction and damage to the inverter and motor and potentially result in physical injury to
personnel.
Inverters with fiber-optic cable systems must not be photographed using a flash light when
they are in operation! Only photograph these types of inverters when they are in a no-voltage
state.
2.13 Provide fuse protection for external control voltage
External control voltage without fuse protection
If you connect an external control voltage without providing suitable fuse protection,
overloading and short circuits can occur. This can result in death, serious injury or material
damage.
The device may only be operated with a protected external control voltage. Note the following
recommendation.
Install one of the following options to protect the external control voltage:
● Miniature fuse in accordance with EN 60127: 2 A ... 6 A, slow, maximum 150 VA
● Miniature circuit-breaker: 2 A ... 6 A, characteristic D, maximum 150 VA
26
Photography prohibited
CAUTION
WARNING
Installation and operating instructions Sinamics G180
Operating Instructions, 05/2013, 4BS0751-001