Siemens Sinamics CU240D-2 DP, Operating Instructions Manual

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Advanced commissioning
6.21 Monitoring the driven load
Converter with the control units CU240D-2
238
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
The inverter compares speed r0586 with the actual speed value r2169 and signals an
excessive deviation between the encoder signal and the motor speed. p2181 specifies the
inverter response for an excessive deviation.
Parameter Description
p0490 Probe
1)
invert (factory setting 0000bin)
The 3rd bit of the parameter value inverts the input signal of digital input 3 for the
probe.
p0580 Probe
1)
Input terminal (factory setting 0)
Connect input of probe with a digital input.
p0581 Probe
1)
Edge (factory setting 0)
Edge for analyzing the probe signal for measuring the actual speed value
0: 0/1 edge
1: 1/0 edge
p0582 Probe
1)
Pulse per revolution (factory setting 1)
Number of pulses per revolution
p0583 Probe
1)
Maximum measurement time (factory setting 10 s)
Maximum measurement time for the probe If there is no new pulse before the max-
imum measuring time elapses, the inverter sets the actual speed value in r0586 to
zero.
The time is restarted with the next pulse.
p0585 Probe
1)
Gear ratio (factory setting 1)
The inverter multiplies the measured speed by the gear ratio before displaying it in
r0586.
r0586 Probe 1) Actual speed value
Result of the speed calculation
p2181 Load monitoring response
1: A07920 for torque too low
2: A07921 for torque too high
3: A07922 for torque outside tolerance
4: F07923 for torque too low
5: F07924 for torque too high
6: F07925 for torque outside tolerance
p2192 Load monitoring delay time (factory setting 10 s)
Delay time for evaluating load monitoring.
p2193 = 2 Load monitoring configuration (factory setting: 1)
0: Monitoring switched off
1: Monitoring torque and load drop
2: Monitoring speed and load drop
3: Load failure monitoring
p3230 = 586 Load monitoring actual speed value (factory setting 0)
Result of the speed calculation with the evaluation of the speed monitoring.
p3231 Load monitoring speed deviation (factory setting 150 rpm)
Permissible speed deviation of load monitoring.
1)
The "Probe" subfunction calculates the speed from the pulse signal of the digital input.
For more information, see the List Manual (the parameter list and function diagram 8013).