MICROMASTER Operating Instructions Contents Safety Instructions ..............................................................2 1. OVERVIEW ......................................................................3 2. INSTALLATION ...............................................................4 3. FRONT PANEL CONTROLS & BASIC OPERATION ...14 4. OPERATING MODES ....................................................17 5. SYSTEM PARAMETERS ...............................................20 6. FAULT CODES ..........
Safety Instructions Before installing and putting this equipment into operation, please read these safety instructions and warnings carefully and all the warning labels attached to the equipment. Make sure that the warning labels are kept in a legible condition and replace missing or damaged labels. WARNING CAUTION This equipment contains dangerous voltages and controls dangerous rotating mechanical parts.
1. OVERVIEW English 1. OVERVIEW The MICROMASTERS are a range of frequency inverters for controlling the speed of three phase AC motors. Various models are available, ranging from the compact 120 W single phase input MICROMASTER up to the 7.5 kW three phase input MICROMASTER. The inverters are microprocessor-controlled and use state of the art IGBT technology for reliability and flexibility.
English 2. INSTALLATION 2. INSTALLATION 2.1 Wiring Guidelines to Minimise the Effects of EMI The inverters are designed to operate in an industrial environment where a high level of Electro-Magnetic Interference (EMI) can be expected. Usually, good installation practices will ensure safe and trouble-free operation. However, if problems are encountered, the following guidelines may prove useful. In particular, grounding of the system 0V at the inverter, as described below, may prove effective.
2. INSTALLATION English MAINS POWER CABLE EARTH STUD FILTER UNIT Note: There must be a good conductive bond between filter and metal panel. EARTH STUD (under) Connect to Mains and PE terminals on Inverter SCREENED CABLE When cable glands cannot be used, terminate screen to metal panel by removing cable sheath.
English 2. INSTALLATION 2.2 Mechanical Installation WARNING THIS EQUIPMENT MUST BE EARTHED. To guarantee the safe operation of the equipment it must be installed and commissioned properly by qualified personnel in compliance with the warnings laid down in these operating instructions. Take particular note of the general and regional installation and safety regulations regarding work on dangerous voltage installations (e.g.
2. INSTALLATION English W1 F DIN Rail H1 H2 H H2 H1 H Depth D Depth D W W ∅ ∅ ∅ = 4.8 mm (B) ∅ = 5.6 mm (C) Tightening Torque (with washers fitted) 2.5 Nm Frame size A and B 3.0 Nm Frame size C ∅ = 4.
English 2. INSTALLATION 2.3 Electrical Installation The electrical connectors on the MICROMASTER are shown in Figure 3. Connect the cables to the power and control terminal blocks in accordance with the information supplied in sections 2.3.1 - 2.3.4. Ensure that the leads are connected correctly and the equipment is properly earthed as shown in Figure 3. CAUTION The control, power supply and motor leads must be laid separately. They must not be fed through the same cable conduit/trunking.
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English 2. INSTALLATION 2.3.2 Power and Motor Connections - Frame Size B The terminal arrangement for frame size B is identical to frame size A (see Figure 3). However, before the wires can be connected to the terminal blocks, you must lower the terminal access panel and secure the cables to the gland plate. Refer to Figures 3 and 4. Proceed as follows: 1. Insert the blade of a small screwdriver into slot A on the side of the inverter and press in the direction of the arrow.
2. INSTALLATION English 2.3.3 Power and Motor Connections - Frame Size C The terminal arrangement for frame size C is identical to frame size A (see Figure 3). However, before the wires can be connected to the terminal blocks, you must lower the fan housing and secure the cables to the gland plate. Refer to Figure 5 and proceed as follows: 1.
English 2. INSTALLATION 2.3.4 Control Connections Insert small blade screwdriver (max. 3.5 mm) as shown while inserting control wire from below. Output Relay (normally open) max. 0.4 A / 110 V AC 1 A / 30 V DC (resistive rating) P10+ 0V AIN+ AIN- DIN1 DIN2 DIN3 P15+ 0V 1 2 3 4 5 6 7 8 9 10 11 RL1B RL1C (NO) (COM) Power Supply (+10 V, max. 10 mA) 6 P+ 0V N- 5V (max.250 mA) Front Panel RS485 D-type Digital Inputs (7.5 - 33 V, max.
2. INSTALLATION English 2.3.5 Motor Overload Protection When operated below rated speed, the cooling effect of fans fitted to the motor shaft is reduced. Consequentially, most motors require de-rating for continuous operation at low frequencies. To ensure that motors are protected against overheating under these conditions, a PTC temperature sensor must be fitted to the motor and connected to the inverter control terminals as shown in Figure 7.
English 3. FRONT PANEL CONTROLS & BASIC OPERATION 3. FRONT PANEL CONTROLS & BASIC OPERATION 3.1 Front Panel Controls CAUTION The digital frequency setpoint has been set at 5.00 Hz in the factory. This means that, it is not necessary to enter a frequency setpoint via the ∆ button or parameter P005 in order to test that the motor turns following a RUN command. All settings must only be entered by qualified personnel, paying particular attention to the safety precautions and warnings.
3. FRONT PANEL CONTROLS & BASIC OPERATION English 3.2 Basic Operation Refer to section 5 for a full description of each parameter. 3.2.1 General (1) The inverter does not have a main power switch and is live when the mains supply is connected. It waits, with the output disabled, until the RUN button is pressed or for the presence of a digital ON signal at terminal 5 (rotate right) or terminal 6 (rotate left) - see parameters P051 - P053.
English 3. FRONT PANEL CONTROLS & BASIC OPERATION 3.2.3 Basic Operation - 10 Step Guide The basic method of setting up the inverter for use is described below. This method uses a digital frequency setpoint and requires only the minimum number of parameters to be changed from their default settings. It assumes that a standard Siemens four-pole motor is connected to the inverter (see section 3.2.1 if a different motor type is being used). Step /Action Button Display 1. Apply mains power to the inverter.
4. OPERATING MODES English 4. OPERATING MODES 4.1 Digital Control For a basic startup configuration using digital control, proceed as follows: (1) Connect control terminal 5 to terminal 8 via a simple on/off switch. This sets up the motor for clockwise rotation (default). (2) Apply mains power to the inverter. Set parameter P009 to 002 or 003 to enable all parameters to be adjusted. (3) Check that parameter P006 is set to 000 to specify digital setpoint.
English 4. OPERATING MODES 4.3 Stopping the Motor Stopping can be achieved in several ways: • Cancelling the ON command or pressing the OFF button (O) on the front panel causes the inverter to ramp down at the selected ramp down rate (see P003). • OFF2 - operation causes the motor to coast to a standstill (see parameters P051 to P053). • OFF3 - operation causes rapid braking (see parameters P051 to P053). • DC injection braking up to 250% causes a rapid stop (see P073). 4.
4. OPERATING MODES English 4.6 Closed Loop Control 4.6.1 General Description The MICROMASTER provides a PI control function for closed loop control (see Figure 11). PI control is ideal for temperature or pressure control, or other applications where the controlled variable changes slowly or where transient errors are not critical. This control loop is not suitable for use in systems where fast response times are required.
English 5. SYSTEM PARAMETERS 5. SYSTEM PARAMETERS Parameters can be changed and set using the membrane-type buttons to adjust the desired properties of the inverter, such as ramp times, minimum and maximum frequencies etc. The parameter numbers selected and the setting of the parameter values are indicated in the four digit LED display. Note: If you press the ∆ or ∇ button momentarily, the values change step by step. If you keep the buttons pressed for a longer time, the values scroll through rapidly.
5. SYSTEM PARAMETERS Parameter Function P000 Operating display P001 • Display mode P002 • Ramp up time (seconds) English Range [Default] - 0-8 [0] Description / Notes This displays the output selected in P001. In the event of a fault, the relevant fault code (Fxxx) is displayed (see section 6). In the event of a warning the display flashes. If output frequency has been selected (P001 = 0) and the inverter is OFF, the display alternates between the selected frequency and the actual frequency.
English 5. SYSTEM PARAMETERS Parameter Function Range [Default] Description / Notes P004 • Smoothing (seconds) 0 - 40.0 [0.0] Used to smooth the acceleration/deceleration of the motor (useful in applications where it is important to avoid ‘jerking’, e.g. conveyor systems, textiles, etc.). Smoothing is only effective if the ramp up/down time exceeds 0.3 s.
5. SYSTEM PARAMETERS English Parameter Function Range [Default] P011 Frequency setpoint memory P012 • Minimum motor frequency (Hz) 0 - 400.00 Sets the minimum motor frequency (must be less than the value of [0.00] P013). P013 • Maximum motor frequency (Hz) 0 - 400.00 Sets the maximum motor frequency. [50.00] P014 • Skip frequency 1 (Hz) 0 - 400.00 A skip frequency can be set with this parameter to avoid the effects of [0.00] mechanical resonance.
English 5. SYSTEM PARAMETERS Parameter Function Range [Default] Description / Notes P022 • Maximum analogue frequency (Hz) 0 - 400.00 Frequency corresponding to the highest analogue input value, i.e. [50.00] 10 V, determined by P023. This can be set to a lower value than P021 to give an inverse relationship between analogue input and frequency output. i.e. f P021 P022 P022 P021 V Note: The output frequency is limited by values entered for P012/P013.
5. SYSTEM PARAMETERS English Parameter Function Range [Default] Description / Notes P041 • Fixed frequency 1 (Hz) 0 - 400.00 Valid if P006 = 2 and P053 = 6 or 18. [5.00] P042 • Fixed frequency 2 (Hz) 0 - 400.00 Valid if P006 = 2 and P052 = 6 or 18. [10.00] P043 • Fixed frequency 3 (Hz) 0 - 400.00 Valid if P006 = 2 and P051 = 6 or 18. [15.00] P044 • Fixed frequency 4 (Hz) 0 - 400.00 Valid if P006 = 2 and P051 = P052 = P053 = 17 . [20.
English 5. SYSTEM PARAMETERS Parameter Function Range [Default] P051 Selection control function, DIN1 (terminal 5), fixed frequency 3 or binary fixed frequency bit 0. 0 - 19 [1] P052 Selection control function, DIN2 (terminal 6), fixed frequency 2. or binary fixed frequency bit 1. 0 - 19 [2] P053 Selection control function, DIN3 (terminal 7), fixed frequency 1 or binary fixed frequency bit 2.
5. SYSTEM PARAMETERS Parameter Function P061 Selection relay output RL1 English Range [Default] Description / Notes 0 - 13 [6] Value 0 1 2 3 4 5 6 7 8 9 10 11 12 13 Relay function No function assigned (relay not active) Inverter is running Inverter frequency 0.
English 5. SYSTEM PARAMETERS Parameter Function P066 Compound braking P073 • DC injection braking (%) Range [Default] 0-1 [1] 0 - 250 [0] Description / Notes 0 = Off 1 = On. Permits faster ramp-down times and enhances stopping capability. This stops the motor by applying a DC current. This causes heat to be generated in the motor rather than the inverter and holds the shaft stationary until the end of the braking period. Braking is effective for the period of time set by P003.
5. SYSTEM PARAMETERS Parameter Function P077 Control mode English Range [Default] 0-2 [1] Description / Notes Controls the relationship between the speed of the motor and the voltage supplied by the inverter. One of two modes can be selected: 0/1 = Linear voltage/frequency Use this curve for synchronous motors or motors connected in parallel. 2 = Quadratic voltage/frequency relationship This is suitable for centrifugal pumps and fans.
English 5. SYSTEM PARAMETERS Parameter Function Range [Default] P092 • Serial link baud rate P093 • Serial link timeout (seconds) P094 • Serial link nominal system setpoint 0 - 400.00 Setpoints are transmitted to the inverter via the serial link as (Hz) [50.00] percentages. The value entered in this parameter represents 100% (HSW = 4000H). P095 • USS compatibility 0-2 [0] 0 = Compatible with 0.1 Hz resolution 1 = Enable 0.
5. SYSTEM PARAMETERS English Parameter Function Range [Default] Description / Notes P121 Enable/disable RUN button 0-1 [1] 0 = RUN button disabled. 1 = RUN button enabled (only possible if P007 = 1). P122 Enable/disable FORWARD/REVERSE button 0-1 [1] 0 = FORWARD/REVERSE button disabled. 1 = FORWARD/REVERSE button enabled (only possible if P007 = 1). P123 Enable/disable JOG button 0-1 [1] 0 = JOG button disabled. 1 = JOG button enabled (only possible if P007 = 1).
English 5. SYSTEM PARAMETERS Parameter Function Range [Default] P210 Transducer reading (%) 0.0 - 100.0 Read only. Value is a percentage of full scale of the selected input. [-] P211 • 0% setpoint 0.00-100.00 Value of P210 to be maintained for 0% setpoint. [0.00] P212 • 100% setpoint P220 PI frequency cut-off 0.00-100.00 Value of P210 to be maintained for 100% setpoint. [100.00] 0-1 0 = Normal operation [0] 1 = Switch off inverter output at or below minimum frequency.
5. SYSTEM PARAMETERS Parameter P947 P958 P963 P967 P968 P970 P971 • Function English Range [Default] Description / Notes Specific to PROFIBUS-DP. See PROFIBUS Handbook for further details. Access only possible with P099 = 1 EEPROM storage control 0-1 [1] 0 = Changes to parameter settings (including P971) are lost when power is removed. 1 = Changes to parameter settings are retained during periods when power is removed.
English 6. FAULT CODES 6. FAULT CODES In the event of a failure, the inverter switches off and a fault code appears on the display. The last fault that occurred is stored in parameter P930. e.g. ‘0003’ indicates that the last error was F003.
7. SPECIFICATIONS English 7. SPECIFICATIONS 230 V Single Phase MICROMASTER Inverters Order No. (6SE92 ..) Inverter model 10-7BA40 MM12 11-5BA40 MM25 12-1BA40 MM37 12-8BA40 MM55 0.12 / 1/6 0.25 / 1/3 0.37 / 1/2 1 AC 230 V +/-15% 2 AC 208 V +/-10% 0.75 / 1 1.1 / 11/ 0.55 / 3/ 350 VA 0.75 A 660 VA 1.5 A 920 VA 2.1 A 1.14 kVA 2.6 A 1.5 kVA 3.5 A 0.8 A 1.8 A 1.7 A 3.2 A 2.3 A 4.6 A 3.0 A 6.2 A 3.9 A 8.2 A 16 A 2 1.
English 7. SPECIFICATIONS Input frequency: 47 Hz to 63 Hz Power factor: λ ≥ 0.7 Output frequency range: 0 Hz to 400 Hz Resolution: 0.01 Hz Overload capability: 150% for 60 s, related to nominal current Protection against: Inverter overtemperature Motor overtemperature Overvoltage and undervoltage Additional protection: Against short-circuits and earth/ground faults pull-out protection.
8. SUPPLEMENTARY INFORMATION English 8. SUPPLEMENTARY INFORMATION 8.1 Application Example Setup procedure for a simple application Motor: 220 V 1.
English 8. SUPPLEMENTARY INFORMATION 8.3 Electro-Magnetic Compatibility (EMC) All manufacturers / assemblers of electrical apparatus which performs a complete intrinsic function which is placed on the market as a single unit intended for the end user must comply with the EMC directive EEC/89/336 after January 1996. There are three routes by which the manufacturer/assembler can demonstrate compliance: 1.
8. SUPPLEMENTARY INFORMATION English Class 2: Filtered Industrial This level of performance will allow the manufacturer/assembler to self-certify their apparatus for compliance with the EMC directive for the industrial environment as regards the EMC performance characteristics of the power drive system. Performance limits are as specified in the Generic Industrial Emissions and Immunity standards EN 50081-2 and EN 50082-2.
English 8. SUPPLEMENTARY INFORMATION Compliance Table: Model No. MM12 - MM220 MM12/2 - MM300/2 MM12/2 - MM220/2 with external filter (see table) 1 phase input only MM150/3 - MM750/3 MM150/3 - MM750/3 with external filter (see table) EMC Class Class 2 Class 1 Class 2* Class 1 Class 2* * If the installation of the inverter reduces the radio frequency field emissions (e.g. by installation in a steel enclosure), Class 3 limits will typically be met. External Filters: Model No.
8. SUPPLEMENTARY INFORMATION English 8.5 User’s Parameter Settings Record your own parameter settings in the table below: Parameter P000 P001 P002 P003 P004 P005 P006 P007 P009 P011 P012 P013 P014 P015 P016 P017 P018 P019 P020 P021 P022 P023 P024 P027 P028 P029 P031 P032 P041 P042 P043 P044 P045 P046 P047 P048 P050 P051 P052 P053 P056 P061 P062 P063 P064 Your setting Default Parameter 0 10.0 10.0 0.0 5.00 0 1 0 0 0.00 50.00 0.00 0 0 1 0 2.00 5.0 0.00 50.00 0 0 0.00 0.00 0.00 5.00 5.00 5.00 10.00 15.
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