MICROMASTER 440 - Siemens AS
MICROMASTER 440 - Siemens AS
MICROMASTER 440 - Siemens AS
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Issue 10/06<br />
6 Commissioning<br />
6.4.18.8 Load torque monitoring<br />
This function monitors the transmission of force between a motor and driven load<br />
within a defined frequency range. Typical applications include, for example,<br />
detecting when a transmission belt breaks or detecting when a conveyor belt is in<br />
an overload condition.<br />
For the load torque monitoring, the actual frequency/torque actual value is<br />
compared to a programmed frequency/torque characteristic (refer to P2182 –<br />
P2190). Depending on P2181, the system monitors whether the permissible torque<br />
curve is either exceeded or fallen below. If the actual value lies outside the<br />
tolerance bandwidth, then after the delay time P2192 has expired, either alarm<br />
A0952 is output or fault F0452.<br />
P2181 = ...<br />
P2182 = ...<br />
P2183 = ...<br />
P2184 = ...<br />
P2185 = ...<br />
P2186 = ...<br />
P2187 = ...<br />
P2188 = ...<br />
P2189 = ...<br />
P2190 = ...<br />
P2192 = ...<br />
Belt failure detection mode<br />
Parameter P2181 activates or de-activates the load torque monitoring and defines the<br />
response to a load torque fault.<br />
0 Belt failure detection disabled<br />
1 Warning: Low torque / frequency<br />
2 Warning: High torque / frequency<br />
3 Warning: High / low torque / frequency<br />
4 Trip: Low torque / frequency<br />
5 Trip: High torque / frequency<br />
6 Trip: High / low torque / frequency<br />
Belt threshold frequency 1<br />
5.00<br />
Sets a frequency threshold 1 for comparing actual torque to torque the envelope for belt<br />
failure detection.<br />
Belt threshold frequency 2<br />
30.00<br />
Sets a frequency threshold 2.<br />
Belt threshold frequency 3<br />
50.00<br />
Sets a frequency threshold 3.<br />
Upper torque threshold 1<br />
99999.0<br />
Upper limit threshold value 1 for comparing actual torque.<br />
Lower torque threshold 1<br />
0.0<br />
Lower limit threshold value 1 for comparing actual torque.<br />
Upper torque threshold 2<br />
99999.0<br />
Upper limit threshold value 2 for comparing actual torque.<br />
Lower torque threshold 2<br />
0.0<br />
Lower limit threshold value 2 for comparing actual torque.<br />
Upper torque threshold 3<br />
99999.0<br />
Upper limit threshold value 3 for comparing actual torque.<br />
Lower torque threshold 3<br />
0.0<br />
Lower limit threshold value 3 for comparing actual torque.<br />
Time delay for belt failure<br />
10<br />
P2192 defines a delay before warning/trip becomes active. It is used to eliminate events<br />
caused by transient conditions. It is used for both methods of fault detection.<br />
<strong>MICROM<strong>AS</strong>TER</strong> <strong>440</strong><br />
Operating Instructions (Compact) 61
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