Control Units - Siemens

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Parameters List of Parameters p0290 Inverter overload reaction / Overload reaction Access level: 3 P-Group: Converter Data type: Unsigned16 Quick comm. NO Active: NO Data set: - Can be changed: T Calculated: - Min Max Factory setting 0 3 2 Description: Selects reaction of inverter to an internal thermal overload condition. Value: 0: Reduce output frequency and output current 1: No reduction, trip (F0004/ 5/ 6) when thermal limits reached 2: Reduce pulse frequency, output current and output frequency 3: Reduce pulse freq. only and trip (F0006) when overload too high Dependency: Following physical values influence the inverter overload protection (see diagram): • Heat sink temperature (r0037.0); causes A0504 and F0004. • IGBT Junction temperature (r0037.1); causes F0004 or F0006. • Delta temperature between heat sink and junction temperature; causes A0504 and F0006. • Inverter I2t (r0036); causes A0505 and F0005. r0036 r0037 Inverter monitoring i 2 t P0294 Heat sink temperature P0292 IGBT temperature P0292 Inverter overload reaction P0290 i_max control (U/f) Current control (SLVC, VC) f_pulse control Notice: P0290 = 0, 2: • Reduction of output frequency is only effective if the load is also reduced. This is for example valid for light overload applications with a quadratic torque characteristic as pumps or fans. • For settings P0290 = 0 or 2, the I-max controller will act upon the output current limit (r0067) in case of overtemperature. P0290 = 0: • With pulse frequencies above nominal, pulse frequency will be reduced to nominal immediately in the event of r0027 greater than r0067 (current limit). P0290 = 2, 3: • The pulse frequency P1800 is reduced only if higher than 2 kHz and if the operating frequency is below 2 Hz. • The actual pulse frequency is displayed in parameter r1801.0 and the minimal pulse frequency for reduction is displayed in r1801.1. • Inverter I2t acts upon output current and output frequency, but not on pulse frequency. A trip will always result, if the action taken does not sufficiently reduce internal temperatures. 1-38 © Siemens AG 2008 All Rights Reserved SINAMICS G120 Control Units CU240E/S, Edition 07/2008 A0504 A0505 A0506 F0004 F0005 F0006
p0291[0...2] Inverter protection / Inverter protect. Access level: 4 P-Group: Converter Data type: Unsigned16 Quick comm. NO Active: YES Data set: DDS Can be changed: T Calculated: - © Siemens AG 2008 All Rights Reserved SINAMICS G120 Control Units CU240E/S, Edition 07/2008 Parameters List of Parameters Min Max Factory setting - - 0001 bin Description: Bit 00 for enabling/disabling automatic pulse frequency reduction at output frequencies below 2 Hz. The benefit is to reduce the noises at frequencies below 2 Hz. Bit 02 shows if phase loss detection (input phase) of 3 phase inverters is enabled after factory reset. Default setting of phase loss is disabled for FSA - FSC. FSD and greater it is enabled. Bit field: Bit Signal name 1 signal 0 signal FP 01 reserved Yes No - 02 Phase loss detection enable Yes No - Note: See P0290 (inverter overload reaction) p0292 Inverter temperature warning / Inv. temp. warn. Access level: 3 P-Group: Converter Data type: Unsigned16 Quick comm. NO Active: NO Data set: - Can be changed: U, T Calculated: - Min Max Factory setting 0 [°C] 25 [°C] 5 [°C] Description: Defines the temperature difference (in °C) between the overtemperature trip threshold (F0004) and the warning threshold (A0504) of the inverter. The trip threshold is stored internally by the inverter and cannot be changed by the user. p0294 Inverter I2t warning / Inv. I2t warn. Access level: 4 P-Group: Converter Data type: FloatingPoint32 Quick comm. NO Active: NO Data set: - Can be changed: U, T Calculated: - Min Max Factory setting 10.0 [%] 100.0 [%] 95.0 [%] Description: Defines the [%] value at which warning A0505 (inverter I2t) is generated. Inverter I2t calculation is used to determine a maximum tolerable period for inverter overload. The I2t calculation value is deemed = 100 % when this maximum tolerable period is reached. Dependency: • The output current of the inverter has been reduced. • The value of I2t does not exceed 100 %. Note: P0294 = 100 % corresponds to stationary nominal load. p0295 Inverter fan off delay time / Fan delay time Access level: 3 P-Group: Terminals Data type: Unsigned16 Quick comm. NO Active: NO Data set: - Can be changed: U, T Calculated: - Min Max Factory setting 0 [s] 3600 [s] 0 [s] Description: Defines inverter fan switch off delay time in seconds after drive has stopped. Note: Setting to 0, inverter fan will switch off when the drive stops, that means no delay. 1-39
Page 1: Parameter Manual · Edition 07/2008
Page 4 and 5: Safety Guidelines Qualified Personn
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Parameters List of Parameters p0756
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Parameters List of Parameters r0807
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Parameters List of Parameters Value
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Parameters Command and Drive Data S
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Parameters Connector/Binector (BICO
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Parameters Quick commissioning (P00
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Parameters Quick commissioning (P00
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Function diagrams Contents: functio
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Function diagrams Symbols in functi
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Function diagrams Overview 2.3 Over
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2-320 © Siemens AG 2008 All Rights
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Function diagrams Setpoint Channel
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Function diagrams V/f Control 2.9 V
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Function diagrams Vector Control 2-
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Faults and Warnings Faults and Warn
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Faults and Warnings List of Fault a
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ASCII-Table A-412 © Siemens AG 200
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List of Abbreviations Abbreviation
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List of Abbreviations Abbreviation
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Index 5100 PID Controller, 2-362 51
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Index P Parameters Active, 1-10 Bin
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Control Units - Siemens

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