Extended Monitoring Functions - Siemens SINAMICS S120 Function Manual

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Function modules

7.2 Extended monitoring functions

Extended monitoring functions

When the extension is activated, the monitoring functions are extended as follows:

● Speed setpoint monitoring: |n_set| ≤ p2161

● Speed setpoint monitoring: n_set > 0

● Load monitoring

Load monitoring

This function monitors power transmission between the motor and the working machine.

Typical applications include V-belts, flat belts, or chains that loop around the belt pulleys or

cog wheels for drive and outgoing shafts and transfer the peripheral speeds and forces. The

load monitoring can identify blockages in the working machine and interruptions to the power

transmission.

During load monitoring, the current speed/torque curve is compared with the programmed

speed/torque curve (p2182 to p2190). If the actual value is outside the programmed

tolerance bandwidth, a fault or alarm is triggered depending on parameter p2181. Faults or

alarms can be delayed using parameter p2192 to prevent false messages caused by brief

transitional states.

Load monitoring

Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3

Drive functions