Extended Monitoring Functions - Siemens SINAMICS S120 Function Manual

Function modules

9.2 Extended monitoring functions

9.2 Extended monitoring functions
Overview
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
Function description
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.
Figure 9-3
Commissioning the function
This function module can be activated via the commissioning wizard.
430
Load monitoring
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions