Safety Information - Siemens SINAMICS S120 Combi Equipment Manual

S120 Combi Power Modules

4.2 Safety information

4.2 Safety information
Danger to life if the fundamental safety instructions and remaining risks are not carefully
observed
If the fundamental safety instructions and remaining risks in Chapter 1 (Page 21) are not
observed, accidents involving severe injuries or death may occur.
• Adhere to the fundamental safety instructions.
• When assessing the risk, take into account residual risks.
Danger to life through electric shock due to connection to the line supply
If the S120 Combi is not disconnected from the line supply system (e.g. via the line
contactor or main switch), the DC link remains charged.
Contact with live parts can result in death or serious injury.
• Before starting any maintenance work, disconnect the S120 Combi from the line supply
Danger to life through electric shock due to residual charge
A hazardous voltage is still present for up to 5 minutes after the power supply has been
switched off.
Contact with live parts can result in death or serious injury.
• Remove the front plate only after 5 minutes have passed.
• When using expansion axes, check that the DC link connection is in a no-voltage
• Only operate the S120 Combi when the front plate is mounted.
• When operating without expansion axes, do not remove the factory-mounted DC link
• Do not continue to operate damaged components.
Danger to life through electric shock due to contact with unused terminals X1 and X2
If cables are not connected to the terminals X1 (line connection) and X2 (motor connection
- spindle), contact can result in death or serious injury.
• Before starting any work on the connections, check for zero voltage.
72
WARNING
DANGER
using the line contactor or main switch.
DANGER
condition (de-energized).
cover.
WARNING
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5