No-Load Monitoring; Rotation Monitoring - Siemens SINAMICS G115D Operating Instructions Manual

Advanced commissioning
6.25 Monitoring the driven load
6.25.1

No-load monitoring

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
Parameter
r0068[0...1]
p2179[0...n]
p2180[0...n]
r2197.11
6.25.2

Rotation monitoring

The converter monitors the speed or velocity of a machine component via an
electromechanical or electronic encoder, e.g. a proximity switch. 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
The converter checks whether the encoder consistently supplies a 24 V signal during motor
operation. If the encoder signal fails for time p2192, the converter signals fault F07936.
Parameters
Parameter
r0722.0...25
p2192[0...n]
p2193[0...n]
p3232[0...n]
For more information, see the List Manual (the parameter list and function diagram 8013).
292
Description
CO: Absolute actual current value
[A]
Output load detection current
limit [A]
Output load detection delay time
[ms]
CO/BO: Status word monitoring
functions 1
Description
CO/BO: CU digital inputs status
Load monitoring delay time [s]
Load monitoring configuration
BI: Load monitoring, failure
detection
Setting
Displays actual absolute current.
[0] Unsmoothed
[1] Smoothed with p0045
Sets the current limit for output load identifica-
tion.
Factory setting: 0
Sets the delay time for the message "output load
not available" (r2197.11 = 1).
Factory setting: 2000
Display and BICO output for the first status word
of the monitoring functions.
Bit 11: Output load not available
Setting
Displays the status of the digital inputs.
Sets the delay time to evaluate the load monitoring.
Factory setting: 10
Sets the load monitoring configuration:
0: Monitoring switched off
1: Monitoring torque and load drop (factory setting)
2: Monitoring speed and load drop
3: Load failure monitoring
Sets the signal source for detecting a failure.
Factory setting: 1
Operating Instructions, 12/2020, FW V4.7 SP13, A5E48681219B-002
SINAMICS G115D distributed drive