Gives information about features of the MICROMASTER 420, Installation, Commissioning, Control modes, System Parameter structure, Troubleshooting, Specifications and available options of the MICROMASTER 420. Parameter List The Parameter List contains the description of all Parameters structured in functional order and a detailed description.
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Overview Installation Commissioning MICROMASTER 420 0.12 kW - 11 kW Using the MICROMASTER 420 System Parameters Operating Instructions User Documentation Troubleshooting MICROMASTER 420 Specifications Options Electro-Magnetic Compatibility (EMC) Valid for Release Issue 04/02 Appendices Inverter Type Control Version MICROMASTER 420 V1.1...
Customers can access technical and general information at: http://www.siemens.de/micromaster Contact address Should any questions or problems arise while reading this manual, please contact the Siemens office concerned using the form provided at the back this manual. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Earth voltage. This connection is normally used to ground the motor. Use for intended purpose only The equipment may be used only for the application stated in the manual and only in conjunction with devices and components recommended and authorized by Siemens. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Please read the information carefully, since it is provided for your personal safety and will also help prolong the service life of your MICROMASTER 420 Inverter and the equipment you connect to it. General WARNING ♦...
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The connection of power, motor and control cables to the inverter must be carried out as shown in Figure 2-7 Seite 29, to prevent inductive and capacitive interference from affecting the correct functioning of the inverter. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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EN 60204, 9.2.5.4) Repair WARNING ♦ Repairs on equipment may only be carried out by Siemens Service, by repair centers authorized by Siemens or by qualified personnel who are thoroughly acquainted with all the warnings and operating procedures contained in this manual.
Parameter list (short form) ..................56 Troubleshooting ....................67 Troubleshooting with the SDP................. 68 Troubleshooting with the BOP ................69 MICROMASTER 420 fault messages ..............70 MICROMASTER 420 alarm messages..............72 MICROMASTER 420 specifications ..............75 Options........................83 Device-independent options..................83 Device-dependent options ..................
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Removing Covers Frame Size B and C ............... 93 Removing ‘Y’ Cap Frame Size A ................94 Removing ‘Y’ Cap Frame Size B and C ............... 95 Applicable Standards.................... 96 List of Abbreviations..................... 97 Index ..........................98 MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Motor and Power Connections....................27 Figure 2-7 Wiring Guidelines to Minimize the Effects of EMI ..............29 Figure 3-1 Inverter block diagram ......................33 Figure 3-2 Panels available for the MICROMASTER 420 Inverter............34 Figure 3-3 DIP switch..........................34 Figure 3-4 Basic operation with SDP .....................36 Figure 3-5 Buttons on the BOP ......................39...
Issue 04/02 1 Overview Overview This Chapter contains: A summary of the major features of the MICROMASTER 420 range. The MICROMASTER 420 ..................16 Features ........................17 MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Comprehensive protective functions provide excellent inverter and motor protection. The MICROMASTER 420 with its default factory settings, is ideal for a large range of simple motor control applications. The MICROMASTER 420 can also be used for more advanced motor control applications via its comprehensive parameter lists.
Acceleration/deceleration times with programmable smoothing Closed-loop control using Proportional, Integral (PI) control loop function Multi-point V/f characteristic Protection characteristics Overvoltage/undervoltage protection Overtemperature protection for the inverter Ground fault protection Short-circuit protection t thermal motor protection PTC for motor protection MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
This Chapter contains: General data relating to installation Dimensions of Inverter Wiring guidelines to minimize the effects of EMI Details concerning electrical installation General........................20 Ambient operating conditions.................. 21 Mechanical installation .................... 22 Electrical installation....................25 MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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The connection of power, motor and control cables to the inverter must be carried out as shown in Figure 2-7 on page 29, to prevent inductive and capacitive interference from affecting the correct functioning of the inverter. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Storage period 3 and more years Prior to energizing, form according to the curve Time t [h] Figure 2-1 Forming Ambient operating conditions Temperature Permissible output current [°C] Operating temperature Figure 2-2 Ambient operating temperature MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
The inverters can be mounted without any clearance at either side. Allow 100 mm clearance above and below the inverter. Make sure that the cooling vents in the inverter are positioned correctly to allow free movement of air. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Ø 4.5 mm 174 mm 5.43" 0.17" 6.85" Figure 2-4 Drill pattern for MICROMASTER 420 Table 2-1 Dimensions and Torques of MICROMASTER 420 Frame-Size Overall Dimensions Fixing Method Tightening Torque 73 x 173 x 149 2 x M4 Bolts Width x 2 x M4 Nuts 2.5 Nm...
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1. To disengaged the release mechanism of the inverter, insert a screwdriver into the release mechanism. 2. Apply a downward pressure and the lower rail latch will disengage. 3. Pull the inverter from the rail. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Only one inverter is supplied from each RCD. The output cables are less than 50m (screened) or 100m (unscreened). Operation with long cables All inverters will operate at full specification with cable lengths up to 50 m screened or 100 m unscreened. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
You can gain access to the mains and motor terminals by removing the covers (see also Appendices A, B und 0). The mains and motor connections must be made as shown in Figure 2-6. Figure 2-5 MICROMASTER 420 connection terminals MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Issue 04/02 2 Installation OPTIONAL FILTER (Class B only) CONTACTOR MICROMASTER MOTOR FUSE L/L1 N/L2 SINGLE PHASE TYPICAL INSTALLATION OPTIONAL FILTER CONTACTOR MICROMASTER MOTOR FUSE THREE PHASE Figure 2-6 Motor and Power Connections MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Use screened or armored cables for the motor connections and ground the screen at both ends using the cable clamps WARNING Safety regulations must not be compromised when installing inverters! MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Control cable Motor cable Footprint filter Metal back plate Use suitable clips to fix motor and control cable screens securely to metal back plate Screening cables Figure 2-7 Wiring Guidelines to Minimize the Effects of EMI MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
This Chapter contains: A schematic diagram of the MICROMASTER 420 An overview of the commissioning options and the display and operator panels An overview of quick commissioing of the MICROMASTER 420 Block diagram......................33 Commission modes....................34 General operation....................44...
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This equipment must not be used as an ‘emergency stop mechanism’ (see EN 60204, 9.2.5.4) CAUTION Only qualified personnel may enter settings in the control panels. Particular attention must be paid to safety precautions and warnings at all times. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
AOUT + 12 0-20mA AOUT - Serial Link (RS485) The Analogue input circuit can be alternatively configured to provide an additional digital input (DIN4) as shown. DIN4 – 0V (Isolated) Figure 3-1 Inverter block diagram MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Issue 04/02 Commission modes In the standard version, the MICROMASTER 420 is fitted with the Status Display Panel (SDP) (see Figure 3-2) with which it is possible to use the inverter with the pre-assigned factory settings for a large range of applications. If these factory...
Motor voltage Rated motor current Rated motor frequency (A conventional Siemens motor is recommended) In addition, the following conditions must be met: Linear V/f motor speed controlled by an analog potentiometer. Maximum speed 3000 rpm at 50 Hz (3600 rpm at 60 Hz); can be controlled by a potentiometer via the analog inputs of the inverter.
Start and stopping the motor Reversing the motor Fault Reset Controlling the speed of the motor Connect the terminals as shown in.Figure 3-4. Start/Stop Digital Inputs Analogue Inputs 5.0 k Ω Figure 3-4 Basic operation with SDP MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Further Commissioning via P0004 and P0003 An overview of the parameter structure is given in Section 5.3 For a detailed description of the parameter, see the Parameter List. NOTES We recommend the commissioning according this scheme. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Setpoint via the BOP set P1000 = 1. Decrease Pressing this button decreases the displayed value. To change the Frequency value Setpoint via the BOP set P1000 = 1. Figure 3-5 Buttons on the BOP MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Press to confirm and store the value Press until r0000 is displayed Press to return the display to the standard drive display (as defined by the customer) Figure 3-6 Changing parameters via the BOP MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Programmable via PC Multidrop capability to drive up to 30 MICROMASTER 4’s Please refer to the AOP Manual for details or contact your local Siemens sales office for assistance. 3.2.3 Commissioning functions with BOP / AOP 3.2.3.1 Quick commissioning (P0010=1) It is important that parameter P0010 is used for commissioning and P0003 is used to select the number of parameters to be accessed.
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End Quick Commissioning with motor calculation but without I/O reset. 1) Motor-specific parameters – see motor rating plate. 2) The parameters offer more setting options than listed here. See Parameter List for further setting options. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
To reset all parameters to the factory default settings; the following parameters should be set as follows (BOP, AOP or Communication Option needed): 1. Set P0010 = 30 2. Set P0970 = 1 NOTE The reset process can take up to 3 minutes to complete. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
1.0 seconds while the inverter is stopped. 3. The inverter is programmed at the factory for standard applications on Siemens four-pole standard motors that have the same power rating as the inverters. When using other motors it is necessary to enter the specifications from the motor's rating plate.
P0601 must also be set to 1. Figure 3-8 Motor Overload PTC Connection NOTE To enable the trip function, set parameter P0701, P0702 or P0703 = 29. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Issue 04/02 4 Using the MICROMASTER 420 Using the MICROMASTER 420 This Chapter contains: An explanation of the various methods of controlling the inverter A summary of the types of control of the inverter Frequency setpoint (P1000)..................48 Command sources (P0700) ..................49 OFF and braking functions ..................
4 Using the MICROMASTER 420 Issue 04/02 WARNING ♦ When operating electrical devices, it is impossible to avoid applying hazardous voltages to certain parts of the equipment. ♦ Emergency Stop facilities according to EN 60204 IEC 204 (VDE 0113) must remain operative in all operating modes of the control equipment.
Issue 04/02 4 Using the MICROMASTER 420 Command sources (P0700) NOTICE The ramp times and ramp-smoothing functions also affect how the motor starts and stops. For details of these functions, please refer to parameters P1120, P1121, P1130 – P1134 in the Parameter List.
4 Using the MICROMASTER 420 Issue 04/02 4.3.2 OFF2 This command causes the motor to coast to a standstill. NOTICE The OFF2 command can have one or more sources. By default the OFF2 command is set to BOP/AOP. This source still exists even if other sources are defined by one of the following parameters, P0700, P0701, P0702, P0703 and P0704.
4 Using the MICROMASTER 420 Control modes (P1300) All control modes of the MICROMASTER 420 are based on a V/Hz control. The following different control variants are provided to suit different types of application: Linear V/f control, P1300 = 0 Can be used for variable and constant torque applications, such as conveyors and positive displacement pumps.
4 Using the MICROMASTER 420 Issue 04/02 Faults and warnings If an SDP is fitted, the fault states and warnings are indicated by the two LEDs on the panel, see section 6.1 on page 68 for further information. Fault-free operation of the inverter is indicated by the following sequence of LED...
Issue 04/02 5 System parameters System parameters This Chapter contains: An overview of the parameter structure of the MICROMASTER 420 A parameter list in short form Introduction to MICROMASTER system parameters..........54 Parameter overview ....................55 Parameter list (short form) ..................56...
Extended parameters (P0003 = 2) are sufficient. The number of parameters that appear within each functional group depends on the access level set in parameter P0003. For further details regarding parameters, see the Parameter List on the Documentation CD-ROM. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Parameter filter P0010 Commissioning parameter filter P3950 Access of hidden parameter Quick Commissioning Par.-No. Parametername Default Level P0100 Europe / North America P3900 End of quick commissioning Parameter Reset Par.-No. Parametername Default Level P0970 Factory reset MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Drive I t overload warning 95.0 P1800 Switching frequency r1801 CO: Act. switching frequency P1802 Modulator mode P1803[1] Max. Modulation 106.0 P1820[1] Reverse output phase sequence R3954[13] CM version and GUI ID P3980 Commissioning command Selection MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Total stator resistance [%] P0610 Motor I t temperature reaction P0611[1] Motor I t time constant P0614[1] Motor I t overload warning level 100.0 P0640[1] Motor current limit 150.0 P1910 Select motor data identification r1912 Identified stator resistance MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Fixed frequency 5 20.00 P1006 Fixed frequency 6 25.00 P1007 Fixed frequency 7 30.00 P1016 Fixed frequency mode - Bit 0 P1017 Fixed frequency mode - Bit 1 P1018 Fixed frequency mode - Bit 2 MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Ramp-down initial rounding time 0.00 P1133[1] Ramp-down final rounding time 0.00 P1134[1] Rounding type P1135[1] OFF3 ramp-down time 5.00 P1140[1] BI: RFG enable P1141[1] BI: RFG start P1142[1] BI: RFG enable setpoint r1170 CO: Frequency setpoint MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Configuration of Vdc controller r1242 CO: Switch-on level of Vdc-max P1243[1] Dynamic factor of Vdc-max P1250[1] Gain Vdc-controller 1.00 P1251[1] Integration time Vdc-controller 40.0 P1252[1] Differential time Vdc-controller P1253[1] Vdc-controller output limitation P1254 Auto detect Vdc switch-on levels MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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CO: Slip frequency P1338 Resonance damping gain V/f 0.00 P1340 Imax controller prop. gain 0.000 P1341 Imax controller integral time 0.300 r1343 CO: Imax controller freq. output r1344 CO: Imax controller volt. output P1350[1] Voltage soft start MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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CB telegram off time P2041[5] CB parameter r2050[4] CO: PZD from CB P2051[4] CI: PZD to CB 52:0 r2053[5] CB identification r2054[7] CB diagnosis r2090 BO: Control word 1 from CB r2091 BO: Control word 2 from CB MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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P2172[1] Threshold voltage Vdc, thresh P2173[1] Delay time Vdc P2179 Current limit for no load ident. P2180 Delay time for no load ident. 2000 r2197 CO/BO: Status word 1 of monitor P3981 Reset active fault MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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P2280 PID proportional gain 3.000 P2285 PID integral time 0.000 P2291 PID output upper limit 100.00 P2292 PID output lower limit 0.00 P2293 Ramp-up /-down time of PID limit 1.00 r2294 CO: Act. PID output MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
An overview of the operating statuses of the inverter with the SDP Notes on troubleshooting with the BOP A list of the alarms and fault messages Troubleshooting with the ..................68 Troubleshooting with the BOP ................69 MICROMASTER 420 fault messages ..............70 MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Issue 04/02 WARNING ♦ Repairs on equipment may only be carried out by Siemens Service, by repair centers authorized by Siemens or by qualified personnel who are thoroughly acquainted with all the warnings and operating procedures contained in this manual.
Now use a switch between terminals 5 and 8 on the control board. The drive should now run to the defined setpoint by analogue input. NOTICE Motor data must relate to the inverter data power range and voltage. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
6 Troubleshooting Issue 04/02 MICROMASTER 420 fault messages In the event of a failure, the inverter switches off and a fault code appears on the display. NOTE To reset the fault code, one of three methods listed below can be used: 1.
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BIST Tests Some of the control board tests Failure have failed Some of the functional tests have failed Some of the IO module tests have failed 16 The Internal RAM has failed its check on power-up MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
6 Troubleshooting Issue 04/02 MICROMASTER 420 alarm messages Fault Possible Causes Diagnose & Remedy Reac- tion A0501 Motor power does not correspond 1. Check whether the motor power corresponds Current Limit to the inverter power to the inverter power Motor leads are too short 2.
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3. As a result, some functions may not work Low output voltage eg when 0 boost correctly, because there is no normal load applied at 0 Hz condition MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Make sure that JOG right and JOG left signals Both JOG Left (P1055/P1056) have been requested. are not applied simultaneously and JOG Right This freezes the RFG output are requested frequency at its current value. JOG right and JOG left signals active together MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Issue 04/02 7 MICROMASTER 420 specifications MICROMASTER 420 specifications This Chapter contains: Table 7-1 contains the general technical specifications for the MICROMASTER 420 inverter Table 7-2 contains terminal tightening torques Table 7-3 includes various tables of specific technical data for individual...
7 MICROMASTER 420 specifications Issue 04/02 Table 7-1 MICROMASTER Performance Ratings Feature Specification Mains operating voltage 1 AC 200 V to 240 V ± 10 % 0,12 kW – 3,0 kW (0,16 hp – 4,0 hp) 3 AC 200 V to 240 V ± 10 % 0,12 kW –...
Issue 04/02 7 MICROMASTER 420 specifications Table 7-3 MICROMASTER 420 Specifications In order to have a UL compliant installation fuses from the SITOR range with the appropriate current rating must be used. Input voltage range 1 AC 200 V – 240 V, ± 10 %...
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7 MICROMASTER 420 specifications Issue 04/02 Input voltage range 3 AC 200 V – 240 V, ± 10 % (with built in Class A Filter) Order No. 6SE6420- 2AC23- 2AC24- 2AC25- 0CA0 0CA0 5CA0 [kW] Motor Output Rating [hp] Output Power [kVA] Output Current Max.
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Issue 04/02 7 MICROMASTER 420 specifications Input voltage range 1 AC / 3 AC 200 V – 240 V, ± 10 % (Unfiltered) Order No. 6SE6420- 2UC11 2UC12 2UC13 2UC15 2UC17 2UC21 2UC21 2UC22 2UC23 -2AA0 -5AA0 -7AA0 -5AA0 -5AA0...
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7 MICROMASTER 420 specifications Issue 04/02 Input voltage range 3 AC 200 V – 240 V, ± 10 % (Unfiltered) Order No. 6SE6420- 2UC24- 2UC25- 0CA0 5CA0 [kW] Motor Output Rating [hp] Output Power [kVA] Output Current Max. 17.5 Input Current...
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Issue 04/02 7 MICROMASTER 420 specifications Input voltage range 3 AC 380 V – 480 V, ± 10 % (with built in Class A Filter) Order No. 6SE6420- 2AD22- 2AD23- 2AD24- 2AD25- 2AD27- 2AD31- 2BA0 0BA0 0BA0 5CA0 5CA0 1CA0 [kW] 11.0...
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7 MICROMASTER 420 specifications Issue 04/02 Input voltage range 3 AC 380 V – 480 V, ± 10 % (Unfiltered) Order No. 6SE6420- 2UD13 2UD15 2UD17 2UD21 2UD21 2UD22 2UD23 2UD24 2UD25 2UD27 2UD31 -7AA0 -5AA0 -5AA0 -1AA0 -5AA0 -2BA0...
Issue 04/02 8 Options Options An overview of the options available for the MICROMASTER 420 is given in this section. For further information about options, please refer to the catalog or the documentation CD. Device-independent options Basic Operator Panel (BOP)
EC type examination certificate This approach is only applicable to radio communication transmitting apparatus. All MICROMASTER units are certified for compliance with the EMC directive, when installed in accordance with the recommendations in Section 2. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
EN 61000-3-2 "Limits for harmonic current emissions (equipment input ≤ 16 A per phase)". All Siemens variable speed drives of the MICROMASTER, MIDIMASTER, MICROMASTER Eco and COMBIMASTER ranges, which are classified as "Professional Equipment" within the terms of the standard, fulfill the requirements of the standard.
The MICROMASTER inverters are intended exclusively for professional applications. Therefore, they do not fall within the scope of the harmonics emissions specification EN 61000-3-2. • Maximum mains supply voltage when filters are fitted is 460 V. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
Frame size A units 400-480 V with external Class A footprint filters 6SE6400-2FA00-6AD0 Class 3 – Filtered for residential, commercial and light industry 6SE6420-2U***-**A0 with Unfiltered units fitted with external Class B footprint filters. 6SE6400-2FB0*-***0 * denotes any value is allowed. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
EMC Product Standard for Power Drive Systems EN61800-3. Underwriters Laboratories UL and CUL LISTED POWER CONVERSION EQUIPMENT 5B33 for use in a pollution degree 2 ISO 9001 Siemens plc operates a quality management system, which complies with the requirements of ISO 9001. MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Index Issue 04/02 operation · 9 Water hazard · 22 repair · 9 Wiring Guidelines EMI · 29 transport & storage · 8 MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...
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Suggestions and/or Corrections Suggestions Siemens AG Automation & Drives Group Corrections SD VM 4 Postfach 3269 For Publication/Manual: D-91050 Erlangen MICROMASTER 420 Bundesrepublik Deutschland Email: Technical.documentation@con.siemens.co.uk User Documentation Operating Instructions From Order Number: Name: 6SE6400-5AA00-0BP0 Date of Issue: 04/02 Company/Service Department...
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Issue 04/02 View of Unit View of Unit Frame Size A Frame Size B & C fitted Power Terminal Connections Control Terminal Connections Access to “Y Cap " MICROMASTER 420 Operating Instructions 6SE6400-5AA00-0BP0...