Siemens MICROMASTER 420 User guide

MICROMASTER 420

Operating Instructions Issue A1

User Documentation

IMPORTANT NOTICE

Not all inverters currently have UL approval.

UL listing can be determined by examining the

inverter's Rating Label.

For UL listed products the following UL mark is used:

Overview

MICROMASTER 420

Operating Instructions User Documentation

Installation

Commissioning

Using the

MICROMASTER 420

System Parameters

Troubleshooting

MICROMASTER 420

Specifications

alid for Release

Inverter Type Control Version

MICROMASTER 420 September 2000

Supplementary

Information

Appendices

Index

A B C D E

Issue: A1

Further information is available on the Internet under:

http://www.siemens.de/micromaster

Approved Siemens Quality for Software and Training is to DIN ISO 9001, Reg. No. 2160-01

The reproduction, transmission or use of this document, or its contents is not permitted unless authorized in writing. Offenders will be liable for damages. All rights including rights created by patent grant or registration of a utility model or design are reserved.

MICROMASTER® is a registered trademark of Siemens.

Order Number. 6SE6400-5AA00-0BP0 Printed in the United Kin

4 MICROMASTER 420 Operating Instructions

dom

Other functions not described in this document may be available. However, this fact shall not constitute an obligation to supply such functions with a new control, or when servicing.

We have checked that the contents of this document correspond to the hardware and software described. There may be discrepancies nevertheless, and no guarantee can be given that they are completely identical. The information contained in this document is reviewed regularly and any necessary changes will be included in the next edition. We welcome suggestions for improvement.

Siemens handbooks are printed on chlorine-free paper that has been produced from managed sustainable forests. No solvents have been used in the printing or binding process.

Document subject to change without prior notice.

Siemens-Aktiengesellschaft.

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FOREWORD International English

Foreword

User Documentation

Warning

Before installing and commissioning, you must read the 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.

MICROMASTER documentation is structured within three distinct levels:

♦ Getting Started Guide

The Getting Started Guide is designed to give you quick access to all the basic information required to install and set up your MICROMASTER 420 for operation.

♦ Operating Instructions

The Operating Instructions provide detailed information for installation and operation of your MICROMASTER 420. The Operating Instructions also provide detailed descriptions of the parameters available for customizing the functions of the MICROMASTER 420.

♦ Reference Manual

The Reference Manual contains in-depth information on all technical issues relating to the MICROMASTER 420 Inverter.

For more detailed information on MICROMASTER 420 publications and for information about other publications in the MICROMASTER range please contact your local Siemens office or refer to our Web Site: http://www.siemens.de/micromaster.

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

International English FOREWORD

Definitions and Warnings

Danger

For the purpose of this documentation and the product warning labels, "Danger" indicates that death, severe personal injury or substantial damage to property will result if proper precautions are not taken.

Warning

For the purpose of this documentation and the product warning labels, "Warning" indicates that death, severe personal injury or substantial damage to property can result if proper precautions are not taken.

Caution

For the purpose of this documentation and the product warning labels, "Caution" indicates that minor personal injury or material damage can result if proper precautions are not taken.

Note

For the purpose of this documentation, "Note" indicates important information relating to the product or highlights part of the documentation for special attention.

Qualified personnel

For the purpose of this Instruction Manual and product labels, a "Qualified person" is someone who is familiar with the installation, mounting, start-up and operation of the equipment and the hazards involved. He or she must have the following qualifications:

1. Trained and authorized to energize, de-energize, clear, ground and tag circuits and equipment in accordance with established safety procedures.

2. Trained in the proper care and use of protective equipment in accordance with established safety procedures.

3. Trained in rendering first aid.

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.

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.

6 MICROMASTER 420 Operating Instructions

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FOREWORD International English

Safety Instructions

The following Warnings, Cautions and Notes are provided for your safety and as a means of preventing damage to the product or components in the machines connected. This section lists Warnings, Cautions and Notes, which apply generally when handling MICROMASTER 420 Inverters, classified as General, Transport & Storage,

Commissioning, Operation, Repair and Dismantling & Disposal.

Specific Warnings, Cautions and Notes that apply to particular activities are listed at

the beginning of the relevant chapters and are repeated or supplemented at critical points throughout these chapters.

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

Warnings

♦ This equipment contains dangerous voltages and controls potentially

dangerous rotating mechanical parts. Non-compliance with Warnings or failure to follow the instructions contained in this manual can result in loss of life, severe personal injury or serious damage to property.

♦ Only suitable qualified personnel should work on this equipment, and only

after becoming familiar with all safety notices, installation, operation and maintenance procedures contained in this manual. The successful and safe operation of this equipment is dependent upon its proper handling, installation, operation and maintenance.

♦ Risk of electric shock. The DC link capacitors remain charged for five minutes

after power has been removed. It is not permissible to open the

equipment until 5 minutes after the power has been removed.

Caution

♦ Children and the general public must be prevented from accessing or

approaching the equipment!

♦ This equipment may only be used for the purpose specified by the

manufacturer. Unauthorized modifications and the use of spare parts and accessories that are not sold or recommended by the manufacturer of the equipment can cause fires, electric shocks and injuries.

Notes

♦ Keep these operating instructions within easy reach of the equipment and

make them available to all users

♦ Whenever measuring or testing has to be performed on live equipment, the

regulations of Safety Code VBG 4.0 must be observed, in particular § 8 “Permissible Deviations when Working on Live Parts”. Suitable electronic tools should be used.

♦ Before installing and commissioning, 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

MICROMASTER 420 Operating Instructions 7 6SE6400-5AA00-0BP0

International English FOREWORD

Transport & Storage

Commissioning

Warnings

♦ Correct transport, storage, erection and mounting, as well as careful

Caution

♦ Protect the inverter against physical shocks and vibration during transport

Warnings

♦ Work on the device/system by unqualified personnel or failure to comply

♦ Only permanently-wired input power connections are allowed. This

♦ If a Residual Current-operated protective Device (RCD) is to be used, it must

♦ Machines with a three phase power supply, fitted with EMC filters, must not

♦ The following terminals can carry dangerous voltages even if the inverter is

operation and maintenance are essential for proper and safe operation of the equipment.

and storage. Also be sure to protect it against water (rainfall) and excessive temperatures (see table on Page 95).

with warnings can result in severe personal injury or serious damage to material. Only suitably qualified personnel trained in the setup, installation, commissioning and operation of the product should carry out work on the device/system.

equipment must be grounded (IEC 536 Class 1, NEC and other applicable standards).

be an RCD type B.

be connected to a supply via an ELCB (Earth Leakage Circuit-Breaker - see DIN VDE 0160, section 6.5).

inoperative:

- the power supply terminals L/L1, N/L2, L3.

- the motor terminals U, V, W, DC+, DC-

8 MICROMASTER 420 Operating Instructions

Caution

The connection of power, motor and control cables to the inverter must be carried out as shown in Figure 2-4 on page 25, to prevent inductive and capacitive interference from affecting the correct functioning of the inverter.

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FOREWORD International English

Operation

Warnings

♦ MICROMASTERS operate at high voltages. ♦ 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. Any disengagement of the Emergency Stop facility must not lead to uncontrolled or undefined restart.

♦ Wherever faults occurring in the control equipment can lead to substantial

material damage or even grievous bodily injury (i.e. potentially dangerous faults), additional external precautions must be taken or facilities provided to ensure or enforce safe operation, even when a fault occurs (e.g. independent limit switches, mechanical interlocks, etc.).

♦ Certain parameter settings may cause the inverter to restart automatically

after an input power failure.

♦ This equipment is capable of providing internal motor overload protection in

accordance with UL508C section 42. Refer to P0610 (level 3) and P0335. Motor overload protection can also be provided using an external PTC via a digital input.

♦ This equipment is suitable for use in a circuit capable of delivering not more

than 10,000 symmetrical amperes (rms), for a maximum voltage of 230/460V when protected by a time delay fuse (see Table on Page 93)

♦ This equipment must not be used as an ‘emergency stop mechanism’ (see

EN 60204, 9.2.5.4)

Repair

Warnings

♦ 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.

♦ Any defective parts or components must be replaced using parts contained in

the relevant spare parts list.

♦ Disconnect the power supply before opening the equipment for access

Dismantling & Disposal

Notes

♦ The inverter’s packaging is re-usable. Retain the packaging for future use or

return it to the manufacturer.

♦ Easy-to-release screw and snap connectors allow you to break the unit down

into its component parts. You can then re-cycle these component parts, dispose of them in accordance with local requirements or return them to

the manufacturer.

MICROMASTER 420 Operating Instructions 9 6SE6400-5AA00-0BP0

International English FOREWORD

10 MICROMASTER 420 Operating Instructions

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Table of Contents

1 Overview.................................................................................................................. 15

1.1 The MICROMASTER 420........................................................................................... 16

1.2 Features .....................................................................................................................16

2 Installation ...............................................................................................................17

2.1 General....................................................................................................................... 18

2.2 Ambient operating conditions ..................................................................................... 19

2.3 Mechanical Installation ............................................................................................... 20

2.4 Electrical Installation................................................................................................... 21

3 Commissioning ........................................................................................................ 27

3.1 Front Panels for the MICROMASTER 420 ................................................................. 29

3.2 General operation....................................................................................................... 34

4 Using the MICROMASTER 420 .............................................................................. 37

4.1 Frequency Setpoint.....................................................................................................38

4.2 Command Sources (P0700) ....................................................................................... 38

4.3 OFF and braking Functions ........................................................................................ 39

4.4 Control Modes (P1300)...............................................................................................40

4.5 Faults and warnings....................................................................................................40

5 System Parameters ................................................................................................. 41

5.1 Overview of MICROMASTER System Parameters .................................................... 42

5.2 Introduction to MICROMASTER System Parameters................................................. 43

5.3 System Parameters and Definitions ........................................................................... 48

6 Troubleshooting....................................................................................................... 91

6.1 Troubleshooting with the Status Display Panel........................................................... 92

6.2 Troubleshooting with the Basic Operator Panel.......................................................... 93

6.3 MICROMASTER 420 fault codes ...............................................................................94

7 MICROMASTER 420 Specifications ....................................................................... 99

8 Supplementary Information ................................................................................... 103

8.1 Available options ......................................................................................................104

8.2 Electro-Magnetic Compatibility (EMC)...................................................................... 104

MICROMASTER 420 Operating Instructions 11 6SE6400-5AA00-0BP0

A - Changing the Operator Panel ..............................................................................................109

B - Removing Covers Frame Size A.......................................................................................... 111

C - Removing Covers Frame Sizes B and C ............................................................................. 113

D - Removing ‘Y’ Cap Frame Size A .........................................................................................115

E - Removing ‘Y’ Cap Frame Sizes B and C ............................................................................. 117

F - User Parameter Settings ......................................................................................................119

G - Applicable Standards........................................................................................................... 121

H - List of Abbreviations............................................................................................................. 123

Index ...............................................................................................................................125

12 MICROMASTER 420 Operating Instructions

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List of Illustrations

Figure 2-1 Drill pattern for MICROMASTER 420................................................................................ 20

Figure 2-2 MICROMASTER 420 Connection Terminals .................................................................... 23

Figure 2-3 Motor and Power Connections.......................................................................................... 23

Figure 2-4 Wiring Guidelines to Minimize the Effects of EMI .............................................................25

Figure 3-1 Panels available for the MICROMASTER 420 Inverter .................................................... 29

Figure 3-2 Basic operation with SDP.................................................................................................. 30

Figure 3-3 Buttons on the Basic Operator Panel ................................................................................ 31

Figure 3-4 Changing parameters via the BOP.................................................................................... 32

Figure 3-5 Typical Motor Rating Plate Example .................................................................................. 33

Figure 3-6 Motor Overload PTC Connection ......................................................................................33

Figure 3-7 Inverter block diagram .......................................................................................................36

List of Tables

Table 3-1 Default settings for operation using the Status Display Panel .......................................... 29

Table 3-3 Default settings for operation using the BOP .................................................................... 30

Table 6-1 Inverter conditions indicated by the LEDs on the SDP .....................................................92

Table 6-2 MICROMASTER 420 Fault Codes .................................................................................... 94

Table 6-3 MICROMASTER 420 Warning Codes .............................................................................. 96

Table 7-1 MICROMASTER 420 Specifications ................................................................................. 99

Table 7-2 MICROMASTER Performance Ratings .......................................................................... 101

Table 8-1 Class 1 - General Industrial ............................................................................................. 105

Table 8-2 Class 2 - Filtered Industrial.............................................................................................. 105

Table 8-3 Class 3 - Filtered for Residential, Commercial and Light Industry .................................. 106

Table 8-4 Compliance Table ........................................................................................................... 107

Table E-1 User’s Parameters Settings............................................................................................. 119

MICROMASTER 420 Operating Instructions 13 6SE6400-5AA00-0BP0

14 MICROMASTER 420 Operating Instructions

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OVERVIEW International English

1 Overview

This Chapter contains:

A summary of the major features of the MICROMASTER 420 range.

1.1 The MICROMASTER 420........................................................................................... 16

1.2 Features .....................................................................................................................16

MICROMASTER 420 Operating Instructions 15 6SE6400-5AA00-0BP0

International English OVERVIEW

1.1 The MICROMASTER 420

The MICROMASTER 420s are a range of frequency inverters for controlling the speed of three phase AC motors. The various models available range from the 120 W single phase input to the 11 kW three phase input.

The inverters are microprocessor-controlled and use state-of-the-art Insulated Gate BipoIar Transistor (IGBT) technology. This makes them reliable and versatile. A special pulse-width modulation method with selectable switching frequency permits quiet motor operation. 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.

The MICROMASTER 420 can be used in both 'stand-alone' applications as well as being integrated into 'Automation Systems'.

1.2 Features

Main characteristics

♦ Easy to install, parameterize and commission

♦ Fast repeatable response time to control signals

♦ Comprehensive range of parameters enabling configuration for widest range of

applications

♦ Simple cable connection

♦ Modular design for extremely flexible configuration

♦ High switching frequencies for low-noise motor operation

♦ External options for PC communications, Basic Operator Panel (BOP), Advanced

Operator Panel (AOP) and Profibus Communications Module

Performance characteristics

♦ Flux Current Control (FCC) for improved dynamic response and motor control

♦ Fast Current Limitation (FCL) for operation with trip-free mechanism

♦ Built-in DC injection brake

♦ Compound Braking to improve braking performance

♦ Acceleration/deceleration times with programmable smoothing

♦ Closed-loop control using Proportional, Integral (PI) control loop function

Protection characteristics

♦ Complete protection for motor and inverter

♦ Overvoltage/undervoltage protection

♦ Overtemperature protection for the inverter

♦ Ground fault protection

♦ Short-circuit protection

♦ I

t thermal motor protection

16 MICROMASTER 420 Operating Instructions

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2. INSTALLATION International English

2 Installation

This Chapter contains:

♦ General data relating to installation ♦ Dimensions of Inverter ♦ Wiring guidelines to minimize the effects of EMI ♦ Details concerning electrical installation

2.1 General....................................................................................................................... 18

2.2 Ambient operating conditions ..................................................................................... 19

2.3 Mechanical Installation ............................................................................................... 20

2.4 Electrical Installation................................................................................................... 21

MICROMASTER 420 Operating Instructions 17 6SE6400-5AA00-0BP0

International English 2. INSTALLATION

Warnings

♦ Work on the device/system by unqualified personnel or failure to comply with

warnings can result in severe personal injury or serious damage to material. Only suitably qualified personnel trained in the setup, installation, commissioning and operation of the product should carry out work on the device/system.

♦ Only permanently-wired input power connections are allowed. This equipment must

be grounded (IEC 536 Class 1, NEC and other applicable standards).

♦ If a Residual Current-operated protective Device (RCD) is to be used, it must be an

RCD type B.

♦ Machines with a three-phase power supply, fitted with EMC filters, must not be

connected to a supply via an ELCB (Earth Leakage Circuit-Breaker EN50178 Section 5.2.11.1).

♦ The following terminals can carry dangerous voltages even if the inverter is

inoperative:

- the power supply terminals L/L1, N/L2, L3.

- the motor terminals U, V, W, DC+, DC-

♦ Always wait 5 minutes to allow the unit to discharge after switching off before

carrying out any installation work.

Caution

2.1 General

Installation after a Period of Storage

Following a prolonged period of storage, you must reform the capacitors in the inverter. The requirements are listed below.

Period of Storage Required Action Preparation Time

1 year or less No reforming required No preparation

1 to 2 years Apply power to the inverter for one hour before

issuing the run command

2 to 3 years  Use a variable AC supply

 Apply 25% of input voltage for 30 minutes  Increase volts to 50% for a further 30 minutes  Increase volts to 75% for a further 30 minutes  Increase volts to 100% for a further 30 minutes

Inverter ready for run signal

3 years and over  Use a variable AC supply

 Apply 25% of input voltage for 2 hours  Increase volts to 50% for a further 2 hours  Increase volts to 75% for a further 2 hours  Increase volts to 100% for a further 2 hours

Inverter ready for run signal

1 hour

2 hours

8 hours

18 MICROMASTER 420 Operating Instructions

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2. INSTALLATION International English

2.2 Ambient operating conditions

Temperature

Min. operating = -10°C Max. operating = 50°C

Humidity Range

95% Non-condensing

Altitude

If the inverter is to be installed at an altitude > 1000m, derating will be required. (Refer to MM420 Reference Manual)

Shock

Do not drop the inverter or expose to sudden shock.

Vibration

Do not install the inverter in an area where it is likely to be exposed to constant vibration.

Electromagnetic Radiation

Do not install the inverter near sources of electromagnetic radiation.

Atmospheric Pollution

Do not install the inverter in an environment, which contains atmospheric pollutants such as dust, corrosive gases, etc.

Water

Take care to site the inverter away from potential water hazards, e.g. do not install the inverter beneath pipes that are subject to condensation. Avoid installing the inverter where excessive humidity and condensation may occur. IP54 and IP56 units offer additional protection.

Overheating

Mount the inverter vertically to ensure optimum cooling. Additional ventilation may be required for horizontal mounting.

Ensure that the inverter’s air vents are not obstructed. Allow 100 mm clearance above and below the inverter.

MICROMASTER 420 Operating Instructions 19 6SE6400-5AA00-0BP0

International English 2. INSTALLATION

2.3 Mechanical Installation

Frame Size A:

160 mm

6.30"

73 mm

2.87"

Frame Size B:

Warning

THIS EQUIPMENT MUST BE GROUNDED.

♦ To ensure the safe operation of the equipment, it must be installed and

commissioned by qualified personnel in full 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. EN 50178), as well as the relevant regulations regarding the correct use of tools and personal protective gear.

♦ The mains input, DC and motor terminals, can carry dangerous voltages even if the

inverter is inoperative; wait 5 minutes to allow the unit to discharge after switching off before carrying out any installation work.

Fixing with 2 bolts M4 2 nuts M4 2 washers M4

Tightening torque (unit to cabinet) with washers fitted: 2.5 Nm

Connecting to DIN rail

149 mm

5.87"

173 mm

6.81"

55 mm

0.22"

160 mm

6.30"

Ø 4.5 mm

0.17"

149 mm

5.87"

Frame Size C:

185 mm

7.28"

Figure 2-1 Drill pattern for MICROMASTER 420

172 mm

6.72"

195 mm

7.68"

202 mm

7.95"

245 mm

9.65"

Ø 4.8 mm

0.19"

138 mm

5.43"

Ø 5.5 mm

0.22"

174 mm

6.85"

174 mm

6.85"

Fixing with 4 bolts M4 4 nuts M4 4 washers M4

Tightening torque (unit to cabinet) with washers fitted: 2.5 Nm

Fixing with 4 bolts M5 4 nuts M5

204 mm

8.03"

4 washers M5

Tightening torque (unit to cabinet) with washers fitted: 3 Nm

20 MICROMASTER 420 Operating Instructions

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2. INSTALLATION International English

2.4 Electrical Installation

Warning

THIS EQUIPMENT MUST BE GROUNDED.

♦ To ensure the safe operation of the equipment, it must be installed and

commissioned by qualified personnel in full 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. EN 50178), as well as the relevant regulations regarding the correct use of tools and personal protective gear.

♦ The mains input, DC and motor terminals, can carry dangerous voltages even if the

inverter is inoperative; wait 5 minutes to allow the unit to discharge after switching off before carrying out any installation work.

♦ The inverters can be installed in a side-by-side configuration, but a distance of 100

mm (3.94 inches) must be maintained if the inverters are installed on top of each other.

2.4.1 General

Warning

The inverter must always be grounded. If the inverter is not grounded correctly,

extremely dangerous conditions may arise within the inverter which could prove potentially fatal.

Operation with ungrounded (IT) supplies

The MICROMASTER will operate from ungrounded supplies and will continue to operate if an input phase is shorted to ground. If an output phase is shorted to ground, the MICROMASTER will trip and indicate F0001.

On ungrounded supplies, it will be necessary to remove the ‘Y’ capacitor from the inside of the unit and fit an output choke. The procedure for removing this capacitor is described in Appendices E and F.

Operation with Residual Current Device

If an RCD (also referred to as ELCB or RCCB) is fitted, the MICROMASTER inverters will operate without nuisance tripping, provided that:

A type B RCD is used. The trip limit of the RCD is 300mA. The neutral of the supply is grounded. Only one inverter is supplied from each RCD. The output cables are less than 50m (screened) or 100m (unscreened).

MICROMASTER 420 Operating Instructions 21 6SE6400-5AA00-0BP0

International English 2. INSTALLATION

Operation with long cables

Caution

The control, power supply and motor leads must be laid separately. Do not feed them through the same cable conduit/trunking. Never use high voltage insulation test equipment on cables connected to the inverter.

All inverters will operate at full specification with cable lengths up to 50 m screened or 100 m unscreened.

2.4.2 Power and motor connections

Warning

♦ Isolate the mains electrical supply before making or changing connections to the

unit.

♦ Ensure that the motor is configured for the correct supply voltage: single / three-

phase 230 V MICROMASTERS must not be connected to a 400 V three-phase supply.

♦ When synchronous machines are connected or when coupling several motors in

parallel, the inverter must be operated with voltage/frequency control characteristic (P1300 = 0, 2 or 3).

Caution

After connecting the power and motor cables to the proper terminals, make sure that the covers have been replaced properly before supplying power to the unit!

Note

♦ Ensure that the appropriate circuit-breakers/fuses with the specified current rating

are connected between the power supply and inverter (see table on Page 93).

♦ Use Class 1 60/75

the power terminals is 1.1 Nm.

♦ To tighten up the power terminal screws use a 4 - 5 mm cross-tip screwdriver.

C copper wire only (for UL compliance). Tightening torque for

Access to the power and motor terminals

The procedure for accessing the power and motor terminals on the MICROMASTER 420 Inverter is illustrated in Appendices B and C. Please also refer to the photographs showing the Power Terminal connections and the Control Terminal connections on the inside of the back cover of this manual.

When the covers have been removed to reveal the terminals, connect the power and motor connections as shown on the next page.

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2. INSTALLATION International English

N/L2

L/L1

Figure 2-2 MICROMASTER 420 Connection Terminals

FUSE

SINGLE PHASE

L3 L2 L1 N

CONTACTOR

OPTIONAL

FILTER

(Class B only)

PEPE

MICROMASTER

L/L1

N/L2

MOTOR

CONTACTOR

FUSE

TYPICAL INSTALLATION

OPTIONAL

FILTER

PEPE

MICROMASTER

MOTOR

THREE PHASE

Figure 2-3 Motor and Power Connections

MICROMASTER 420 Operating Instructions 23 6SE6400-5AA00-0BP0

International English 2. INSTALLATION

2.4.3 Avoiding Electro-Magnetic Interference (EMI)

The inverters are designed to operate in an industrial environment where a high level of EMI can be expected. Usually, good installation practices will ensure safe and troublefree operation. If you encounter problems, follow the guidelines stated below.

Action to Take

♦ Ensure that all equipment in the cubicle is well grounded using short, thick grounding

cable connected to a common star point or busbar

♦ Make sure that any control equipment connected to the inverter (such as a PLC) is

connected to the same ground or star point as the inverter via a short thick link.

♦ Connect the return ground from the motors controlled by the inverters directly to the

ground connection (PE) on the associated inverter

♦ Flat conductors are preferred as they have lower impedance at higher frequencies ♦ Terminate the ends of the cable neatly, ensuring that unscreened wires are as short

as possible

♦ Separate the control cables from the power connections as much as possible, using

separate trunking, if necessary at 90º right angles

♦ Whenever possible, use screened leads for the connections to the control circuitry ♦ Ensure that the contactors in the cubicle are suppressed, either with R-C suppressors

for AC contactors or 'flywheel' diodes for DC contactors fitted to the coils. Varistor suppressors are also effective. This is important when the contactors are controlled from the inverter relay

♦ Use screened or armored connections 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!

24 MICROMASTER 420 Operating Instructions

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2. INSTALLATION International English

Figure 2-4 Wiring Guidelines to Minimize the Effects of EMI

Key Meaning in diagrams above

1 Mains power input 2 Control cable 3 Motor cable 4 Footprint filter 5 Metal back plate 6 Use suitable clips to fix motor and control cable screens securely to metal

back plate

Note

To enhance the screening of the motor and control cables, the optional Gland Plate can be used (not shown in Figure 2-4).

MICROMASTER 420 Operating Instructions 25 6SE6400-5AA00-0BP0

International English 2. INSTALLATION

26 MICROMASTER 420 Operating Instructions

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3. COMMISSIONING International English

3 Commissioning

This Chapter contains:

♦ Description of the front panel controls ♦ A brief description of the optional front panels available and an explanation of the

operation of the Basic Operator Panel (BOP)

♦ An 8-step guide at the end of the Chapter, which provides a simple procedure for

changing parameters

3.1 Front Panels for the MICROMASTER 420 ................................................................. 29

3.2 General operation....................................................................................................... 34

MICROMASTER 420 Operating Instructions 27 6SE6400-5AA00-0BP0

International English 3. COMMISSIONING

Warning

♦ MICROMASTERS operate at high voltages. ♦ 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. Any disengagement of the Emergency Stop facility must not lead to uncontrolled or undefined restart.

♦ Wherever faults occurring in the control equipment can lead to substantial material

damage or even grievous bodily injury (i.e. potentially dangerous faults), additional external precautions must be taken or facilities provided to ensure or enforce safe operation, even when a fault occurs (e.g. independent limit switches, mechanical interlocks, etc.).

♦ Certain parameter settings may cause the inverter to restart automatically after an

input power failure.

♦ This equipment is capable of providing internal motor overload protection in

accordance with UL508C section 42. Refer to P0610 (level 3) and P0335. Motor overload protection can also be provided using an external PTC via a digital input.

♦ This equipment is suitable for use in a circuit capable of delivering not more than

10,000 symmetrical amperes (rms), for a maximum voltage of 230/460V when protected by a time delay fuse (see Table on Page 93).

♦ 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.

The MICROMASTER 420 is supplied with a Status Display Panel (SDP) and default parameter settings that cover the following requirements:

♦ The motor rating data, Voltage, Current and Frequency are all compatible with the

inverter data. (A standard Siemens motor is recommended).

♦ Linear V/f motor speed, controlled by an analogue potentiometer.

-1

♦ Maximum speed 3000 min

potentiometer via the inverter’s analogue inputs

♦ Ramp-up time / Ramp-down time = 10 s If more complex application settings are required, please refer to the parameter listing in

these Operating Instructions. For changing parameters you will need one of the optional modules "Basic Operator

Panel" (BOP) or the "Advanced Operator Panel" (AOP) described below. Furthermore the parameters can be changed by communication options (refer to the

Reference Manual). For instruction on how to exchange/replace the Operator Panels see Appendix A

Note

♦ The same BOP/AOP can be used for each MICROMASTER 420. After changing

the parameters replace the BOP/AOP by the SDP.

♦ The terminal layout for connecting power and control cables is shown in the

photograph on the inside of the back cover of this manual.

with 50 Hz (3600 min

-1 with 60 Hz)

, Controllable using a

28 MICROMASTER 420 Operating Instructions

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3. COMMISSIONING International English

3.1 Front Panels for the MICROMASTER 420

Front panels

The front panels shown below are available for use with the MICROMASTER 420 Inverters. The panel on the left is supplied with the inverter as standard and is referred to as the Status Display Panel (SDP). The Basic Operator Panel (BOP) and Advanced Operator Panel (AOP) are available as options.

150.00

Status Display Panel

(Standard)

Basic Operator Panel

Figure 3-1 Panels available for the MICROMASTER 420 Inverter

Changing the front panel

The procedure for removing the SDP and fitting the BOP or AOP, which are available as options, is described in Appendix A.

3.1.1 Commissioning with the Status Display Panel (SDP)

The SDP is supplied with your MICROMASTER 420 Inverter as standard. This panel has two LEDs on the front, which indicate the operational status of the inverter. With the SDP the inverter can be used with its default settings, that covers a lot of applications. The default settings are shown in Table 3.1

jog

(Option)

RUNNING P000

F= 50.0

I = 4.8

RPM=1500 V=400v

jog

Advanced Operator Panel

(Option)

fn fl p v

The terminal layout is shown in the photograph of the Control Terminal Connections on the inside of the back cover of this manual.

Table 3-1 Default settings for operation using the Status Display Panel

Terminals Parameter Default Operating

Digital Input 1 5 P0701 = ‘1’ ON right

Digital Input 2 6 P0702 = ‘12’ Reverse

Digital Input 3 7 P0703 = ‘9’ Fault Reset

Output Relay 10/11 P0731 = ’52.3’ Fault Identification

Analogue Output 12/13 P0771 = 21 Output Frequency

Analogue input 3/4 P0700 = 0 Frequency Setpoint

1/2 Analog Input supply

MICROMASTER 420 Operating Instructions 29 6SE6400-5AA00-0BP0

International English 3. COMMISSIONING

Warnings and faults states on the Status Display Panel

The two LEDs on the Status Display Panel indicate the operating status of your inverter. These LEDs also indicate various warnings or fault states. In section 6.2 the inverter states, indicated by the two LEDs are explained.

3.1.2 Basic operation with SDP

With the SDP fitted, the following is possible:

♦ Start and stopping the motor

♦ Reversing the motor

♦ Fault Reset

Controlling the speed of the motor Connect the terminals as shown in the figure below.

DIN15DIN26DIN3724V+80V

10V+10V2AIN+3AIN-



  

5.0 k

Start/Stop

Figure 3-2 Basic operation with SDP

Note

The terminal layout for connecting power and control cables is shown in the photographs on the inside of the back cover of this manual.

3.1.3 Commissioning with the Basic Operator Panel (BOP)

150.00

Jog

Ack

Rev

Digital Inputs Analogue Inputs

The Basic Operator Panel (BOP), which is available as an option, provides access to the inverter parameters and enables you to customize the settings of your MICROMASTER 420. The BOP can be used to configure several MICROMASTER 420 Inverters. There is no need to purchase a separate BOP for each inverter.

It should be noted that the BOP, by default is disabled. To control the motor via the BOP, parameter P0700 should be set to 1.

Table 3-2 shows the factory default settings for operation via the Basic Operator Panel.

Table 3-3 Default settings for operation using the BOP

Parameter Meaning Default Europe (North America)

P0100 Operating Mode Europe/US 50 Hz, kW (60Hz, hp) P0307 Power (rated motor) kW (Hp) P0310 Rated motor frequency 50 Hz (60 Hz) P0311 Rated Motor Speed 1395 (1680) rpm [depending on variant] P1082 Maximum Motor Frequency 50 Hz (60 Hz)

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