Slip compensation | Siemens 420 specs

3 Functions

Issue 07/04

3.21.1.3Slip compensation

Parameter range:	P1335 – r1337
Warnings	-
Faults	-
Function chart number:	FP6100

In the V/f characteristic operating mode the motor frequency is always lower than the drive inverter output frequency by the slip frequency fs. If the load (the load is increased from M1 to M2) is increased with a constant output frequency, then the slip s when motoring increases and the motor frequency decreases (from f1 to f2). This behavior, typical for an induction motor, can be compensated using slip compensation P1335. This therefore eliminates the speed reduction, caused by the load, by boosting (increasing) the drive inverter output frequency (refer to Fig.

3-62).

Without Slip compensation		With Slip compensation
M		M
M2		M2
M1		M1
∆ f	f	∆ f		f
∆ f		∆ f		fout M2
f2	f1	f2	f1	fout M2
				fout M1

Fig. 3-62 Slip compensation

MICROMASTER 420	Operating Instructions
148	6SE6400-5AA00-0BP0

Image 148

Siemens 420 manual Slip compensation

Contents

Operating Instructions Issue 07/04 User Documentation Micromaster 420 Documentation Getting Started GuideOperating Instructions Parameter List Operating Instructions Valid for Release Micromaster Online Service & Support User DocumentationInformation is also available from Regional Contacts Central Technical Support Use for intended purpose only Qualified personnel Safety Instructions General Transport & Storage Commissioning Repair OperationDismantling & Disposal Safety Instructions Issue 07/04 Table of Contents 151 152153 154 List of Illustrations OFF1 List of Tables Table of Contents Issue 07/04 Overview This Chapter contains Micromaster Main Characteristics FeaturesPerformance Characteristics Protection characteristics Options Installation Installation Issue 07/04 Installation after a Period of Storage TemperatureGeneral Ambient operating conditions Installation and cooling HumidityAltitude Shock and Vibration Mechanical installation Fitting the Inverter to a 35 mm standard rail EN Mounting on standard rail, Frame Size aRemoving the Inverter from the rail Electrical installation Inverter must always be grounded General Operation with ungrounded IT suppliesOperation with Residual Current Device Operation with long cables Power and motor connections Access to the power and motor terminals Single Phase Three Phase Control terminals Terminal Designation Function Avoiding Electro-Magnetic Interference EMI Action to Take Gland Plate Screening MethodsScreening without a Gland Plate Installation Issue 07/04 Functions This Section includes the following Functions Issue 07/04 Issue 07/04 Functions Setting / monitoring parameters and parameter attributes Setting parametersParameters Notation Monitoring parameters Attribute Description Group Inverter P03053 Rated motor current P0004 = P0003 =P0003 = Interconnecting signals Bico technology Significance / command source Significance Main setpoint source Supplementary setpoint source Selection of command/frequency setpoint P0719 Command source BI Binector Input, signal receiver P parameters BO Binector Output, signal source r parametersAbbreviation and symbol Name Function Bico technology CI Connector Input, signal sink P parameters CO Connector Output, signal source r parameters P1070 = P0840 =P2051 = P0731 = Interface 100 % Reference quantitiesParameter Designation Value 100 % Units Example Operator panels for Micromaster Description of the BOP Basic Operator Panel Description of the AOP Advanced Operator Panel Keys and their functions on the operator panel BOP / AOP Operator Function Effects Panel/key Changing P0004 parameter filter function Changing parameters using the operator panelStep Result on the display Block diagram External 24 Factory setting Parameter Function 13 Recommended wiring for the factory setting 14 Procedure when commissioning Commissioning Check list 1 50/60 Hz setting 15 DIP switch to change-over between 50/60 Hz Factory setting User access level Quick commissioningParameterizing the drive with BOP or AOP Commissioning parameter Europe kW, frequency default 50 Hz Rated motor powerEurope/ North America Rated motor voltage Selection of command source Control modeEnd of quick commissioning/ drive setting Selection of frequency setpoint 17 Example of a typical motor rating plate IEC Motor Nema Motor Hz characteristic 19 Star / delta circuit configurations 87 Hz Calculating the motor / control data Motor data identification stator resistance Ambient motor temperature entered in C Power-up the motorDisabled Motor data identification routine Adapting the drive inverter to the application Commissioning the applicationSerial Interface USS 5.2 Selection of command source Digital input DIN 5.5 Digital output DoutSelection of frequency setpoint Analog input ADC 5.7 Analog output DAC Motor potentiometer MOP Fixed frequency FF 5.10 JOG Ramp-function generator HLG Reference/limit frequencies Motor control Acceleration boost entered in % Starting boost entered in %Programmable V/f freq .0 Hz coord Slip compensation entered in % Inverter/motor protection Automatic restart Inverter-specific Functions Flying startHolding brake DC braking Compound brakingVdc controller PID controller Max. value for PID feedback Sets lower limit for the PID controller output in %Example Parameter Parameter text Example Series commissioning MM4 Issue 07/04 Functions Reset to the factory setting Parameter reset to the factory settingFactory reset Inputs / outputs Digital inputs DIN Example P0701 P0703 digital inputs 1-3 or P0707 P0703 analog inputParameter value Significance Bico parameterization Digital output Dout 11 Parameter P0731 frequently used functions / states Analog input ADC ADC channel Wire breakage monitoring 26 Wire breakage monitoring 27 Signal output through the DAC channel Analog output DAC Communications Starter USS BOP link interface BOP on BOP link USS on BOP link COM link interface CB on COM link USS on COM link USS at the COM link RS485 USS bus configuration via COM link RS485 30 RS485 Terminator Fixed frequencies FF Direct selection Direct selection + on command Binary-coded selection + on command R0722.1 Motorized potentiometer MOP Selecting via serial interfaces Parameters / keys Selecting via BOP or AOPAOP at the BOP link 10 JOG 35 JOG counter-clockwise and JOG clockwise 105 PID controller technological controller 36 Structure of the technological controller PID controller Parameterizations PID motorized potentiometer PID-MOP PID motorized potentiometer Motorized potentiometer PID fixed setpoint PID-FF Setpoint channel Summation and modification of the frequency setpoint AFM 111 Ramp-function generator RFG With rounding P1132 P1133 P1134 = 19 Bico parameters for ramp-function generator Parameter Description 12.3 OFF/braking functions OFF1 OFF2 Parameter setting Command source Manual / automatic operation Value Command source Setpoint source Motor holding brake MHB On / OFF1/OFF3 On / OFF2 49 Motor holding brake after OFF2 121 Electronic brakes 14.1 DC braking Sequence ➀ 51 DC braking after OFF1 / OFF3 Sequence ➁ 52 DC braking after external selection Compound braking 53 Compound braking 126 Automatic restart Line undervoltage brownoutLine failure blackout Blackout Brownout 128 Flying restart Flying restart active Search direction 130 Closed-loop Vdc control Vdcmax controllerDC link undervoltage Cause 132 Monitoring functions / messages General monitoring functions / messages Function chart Functions / states Thermal motor protection and overload responses FeaturesThermal motor model 136 19.2 PTC temperature sensor Temperature Classes 58 Connecting a temperature sensor to Micromaster Fault and shutdown Power module protectionGeneral overload monitoring Thermal monitoring functions and overload responses Heatsink temperatureI2t monitoring Disadvantage Reducing the pulse frequency P0290 = 2Reducing the output frequency P0290 = 0,2 No reduction P0290 = Open-loop/closed-loop control technique 21.1 Control 27 V/f characteristic parameter P1300 Use / property Voltage boost Parameter Voltage boost Explanation 146 21.1.2 V/f open-loop control with flux current control FCC Slip compensation 62 Slip compensation 21.1.4 V/f resonance damping 63 Effect of V/f resonance damping Current limiting Imax controller Imax controller setpoint Troubleshooting Troubleshooting with the SDP Troubleshooting Issue 07/04 Troubleshooting with the BOP Fault messages Fault messages and alarm messagesAlarm messages Suppressing fault / alarm messages 156 Micromaster 420 specifications Micromaster 420 specifications Issue 07/04 Feature Specification KHz 10 kHz 12 kHz 14 kHz 16 kHz 1BA1 5BA1 2AB11 2AB12 2AB13 2AB15 2AB17 2AB21 2AB22 2AB23Lbs Input voltage range AC 200 V 240 V, ± 10 % Unfiltered 2UC11 2UC12 2UC13 2UC15 2UC17 2UC21 2UC22 2UC23KVA Awg 1BA1 5BA1 2BA1 2UC12 2UC132UC25 2AD31 2AD23 2AD242BA1 0BA1 2UD13 2UD15 2UD17 2UD21 2UD22 2UD23 2UD24 Input voltage range AC 380 V 480 V, ± 10 % Unfiltered2UD25 2UD27 2UD31 Device-independent options OptionsDevice-dependent options Options Issue 07/04 Electro-magnetic compatibility EMC Electro-magnetic compatibility EMC Self-certificationTechnical construction file EC type examination certificate EMC Directive Compliance with Imminent Harmonics Regulations Classification of EMC performance Class 1 General IndustrialClass 2 Filtered Industrial EMC Phenomenon Standard Level 171 Class 1 General Industrial Model RemarksClass Appendices Changing the OperatorPanel Removing Covers Removing Covers Frame Size a 6SE6400-5AA00-0BP0 Removing ‘Y’ Cap Removing ‘Y’ Cap Frame Size a Issue 07/04 Removing ‘Y’ Cap Removing fan Removing fan, Frame Size a Removing fan, Frame Sizes B and C Applicable Standards List of Abbreviations COM List of Abbreviations Issue 07/04 PPO Index Issue 07/04 Index Ungrounded IT supplies Suggestions and/or Corrections Suggestions Corrections 188 View of Unit Frame Size a Frame Size B & C Siemens Aktiengesellschaft