8.27
Monitoring the driven load
In many applications, the speed and the torque of the motor can be used to determine whether
the driven load is in an impermissible operating state. The use of an appropriate monitoring
function in the converter prevents failures and damage to the machine or plant.
Examples:
• For fans or conveyor belts, an excessively low torque can mean a broken drive belt.
• For pumps, insufficient torque can indicate a leakage or dry-running.
• For extruders and mixers, an excessive torque together with low speed can indicate machine
blockage.
8.27.1
No-load monitoring
Function description
An insufficient motor current indicates that the motor cable is disconnected.
If the motor current for the time p2180 lies below the current level p2179, the converter signals
the alarm A07929.
Parameters
Number
Name
Factory setting
r0068[0 … 1]
CO: Absolute actual current value
- Arms
p2179[D]
Output load detection current limit
0 Arms
p2180[D]
Output load detection delay time
2000 ms
r2197[0 … 13]
CO/BO: Status word monitoring functions 1
-
Advanced commissioning
8.27 Monitoring the driven load
Distributed converter for SIMOGEAR geared motors
330
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL