Advanced commissioning
7.7 Application-specific functions
Load failure monitoring
Principle of operation
Using this function, the inverter monitors the speed or velocity of a machine component. The
inverter evaluates whether an encoder signal is present. If the encoder signal fails for a time
that can be adjusted, then the inverter signals a fault.
Examples of how the function can be used:
● Gearbox monitoring for traction drives and hoisting gear
● Drive belt monitoring for fans and conveyor belts
● Blocking protection for pumps and conveyor belts
Figure 7-35 Function plan and time response of load-interruption monitoring
p2192
Load monitoring delay time
(factory setting 10 s)
After the motor is switched on, if the "LOW" signal is present at the associated
digital input for longer than this time, the inverter signals a load failure (F07936).
p2193 = 3
Load monitoring configuration
see Table 7-28 Setting options for load monitoring (Page 195)
p3232 = 722.x
Load monitoring failure detection
(factory setting: 1)
Connect the load monitoring to a DI x digital input of your choice.
For more information, see the List Manual (the parameter list and function diagram 8013).
Converter with control units CU240D-2
196 Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
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