No-Load Monitoring, Blocking Protection, Stall Protection - Siemens sinamics G120 Operating Instructions Manual
Low voltage inverters chassis devices with cu250s-2 control units and encoder evaluation
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Also See for sinamics G120:
- List manual (1256 pages) ,
- Manual (732 pages) ,
- Operating instructions manual (550 pages)
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Advanced commissioning
6.7 Application-specific functions
6.7.10.1
No-load monitoring, blocking protection, stall protection
No-load monitoring
Principle of operation
If the motor current is below the value of p2179 for the time set in p2180, using bit 11 of
status word 1 for monitoring functions (r2197.11), the converter outputs the "Output load not
available" message.
Applications: Fans and conveyor belts
Settings
Parameters
p2179
p2180
Stall protection
Principle of operation
If the speed lies below the value of p2175 for the time set in p2177, and the converter is
operating at the current or torque limit, using bit 6 of status word 2 for monitoring functions
(r2198.6), the converter outputs the "Motor blocked" message.
The converter goes to the current or torque limit if the setpoint speed is significantly higher
than the actual speed.
Applications: Extruders and mixers
Settings
Parameters
p2175
p2177
302
Description
Output load detection current limit (factory setting: 0 A)
p2179 = 0: No load detection deactivated
Output load detection delay time (factory setting: 2000 ms)
Description
Motor blocked speed threshold (factory setting: 120 rpm)
p2175 = 0: Blocking protection deactivated
Motor blocked delay time (factory setting: 3 s)
Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE
Converter with CU250S-2 Control Unit
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