Siemens SINUMERIK 840D sl Function Manual page 66

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Table of Contents

Safety Functions Integrated in the Drive

4.5 Control via terminals on the Control Unit and the power unit

Monitoring channel

Control Unit

Monitoring channel

Motor Module

Terminals for "Safe Torque Off": example for Motor Modules, booksize format

Grouping drives

If the function is to be simultaneously initiated for several drives, the terminals for

the corresponding drives must be grouped together:

S 1st Control Unit shutdown path

By appropriately interconnecting the binector input to a joint input terminal for

the drives to be combined to form a group.

S 2nd Motor Module shutdown path

By appropriately connecting terminal "EP" for the individual Motor Modules be-

longing to a group.

The grouping must be identical in both monitoring channels.

If a fault in a drive results in a Safe Torque Off (STO), this does not automatically

mean that the other drives in the same group also switch to Safe Torque Off

The assignment is checked while testing the shutdown paths. The operator selects

Safe Torque Off for each group. The check is drive–specific.

SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition

Motor Module

Sinamics s120