Motor torque monitoring
This function limits the motor torque during operation.
Preconditions
The motor torque monitoring can only be used for the following motor control types with speed controller:
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Sensorless control (SL PSM)
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Sensorless vector control (SLVC)
Details
This function sets the internal status signal "Torque limit reached [79]" = TRUE when the maximum possible torque has been reached.
The limits of the monitoring function are selected via 0x2949:001 (P337.01) (positive torque limit) and 0x2949:002 (P337.02) (negative torque limit). The actual limits can be seen in 0x2949:003 (P337.03) (actual positive torque limit), 0x2949:004 (P337.04) (actual negative torque limit).
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The status signal is set irrespective of the response 0x2D67:001 (P329.01) and the delay time 0x2D67:002 (P329.02) set for this monitoring.
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The status signal can be used by the user to
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activate certain functions.
Flexible I/O configuration
Flexible I/O configuration –
set a digital output.
Configure digital outputs
Configure digital outputs –
set a bit of the NetWordOUT1 mappable data word.
Motor speed monitoring
Motor speed monitoring Parameter
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Address
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Name / setting range / [default setting]
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Information
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0x2D67:001
(P329.01)
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Maximum torque monitoring: Response
(MaxTrq.Monitor: Response)
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From version 02.00
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Selection of response to reaching the maximum possible torque.
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The selected response takes place if the status signal "Torque limit reached [79]" = TRUE and the deceleration time set in 0x2D67:002 (P329.02) has elapsed.
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0
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No response
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1
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Warning
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2
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Trouble
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3
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Fault
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0x2D67:002
(P329.02)
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Maximum torque monitoring: Triggering delay
(MaxTrq.Monitor: Triggering delay)
0.000 ... [0.000] ... 10.000 s
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From version 02.00
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Optional setting of a deceleration for triggering the response selected in 0x2D67:001 (P329.01).
Typical application:
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The motor should be driven at the torque limit for a short time without triggering the selected response.
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Only after a longer operation (> set deceleration) at the torque limit, the selected response is to take place.
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0x6072
(P326.00)
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Max. torque
(Max. torque)
0.0 ... [250.0] ... 3000.0 %
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From version 02.00
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Symmetrical selection of the maximum permissible torque.
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100 % = Rated motor torque 0x6076 (P325.00)
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This parameter serves to implement a static and bipolar torque limitation. This can be used, for instance, as overload protection of the mechanical transmission path/elements starting at the motor shaft.
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This limitation acts irrespective of the torque limitations acting in unipolar mode that are set in 0x60E0 and 0x60E1.
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Severity