8.27.3
Torque monitoring
Function description
In applications with fans, pumps or compressors with the flow characteristic, the torque follows
the speed according to a specific characteristic. An insufficient torque for fans indicates that the
power transmission from the motor to the load is interrupted. For pumps, insufficient torque can
indicate a leakage or dry-running.
The converter monitors the torque based on the envelope curve depending on the speed against
a lower and upper torque.
6SHHG>USP@
SVSHHGWKUHVKROG
6SHHGWKUHVKROGS
6SHHGWKUHVKROGS
SPD[LPXPVSHHG
7RUTXHWKUHVKROGORZHUS
7RUTXHWKUHVKROGXSSHUS
7RUTXHWKUHVKROGORZHUS
7RUTXHWKUHVKROGXSSHUS
7RUTXHWKUHVKROGORZHUS
7RUTXHWKUHVKROGXSSHUS
7RUTXH>1P@
If the torque lies in the impermissible range longer than time p2192, the converter reacts as
specified in p2181.
The monitoring is not active below speed threshold 1 and above speed threshold 3.
Setting monitoring
1. Operate the drive at three different speeds in succession.
2. Set the speed thresholds p2182 … p2184 to the respective values.
3. Set the torque thresholds for each speed.
The converter displays the current torque in r0031.
4. Set p2193 = 1.
You have now set monitoring.
❒
Parameter
Number
Name
Factory setting
r0031
Torque actual value, smoothed
-
p2181[D]
Load monitoring, response
0
p2182[D]
Load monitoring, speed threshold 1
150 rpm
p2183[D]
Load monitoring, speed threshold 2
900 rpm
p2184[D]
Load monitoring, speed threshold 3
1500 rpm
Advanced commissioning
8.27 Monitoring the driven load
Distributed converter for SIMOGEAR geared motors
332
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL