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. The Parameter list also includes a series of
function plans.
Catalogues
In the catalogue you will find all the necessary information
to select an appropriate inverter, as well as filters, chokes,
operator panels and communication options.
MICROMASTER 420
0.12 kW - 11 kW
Operating Instructions
User Documentation
Overview
Installation
Commissioning
Troubleshooting
MICROMASTER 420
specifications
Options
1
2
3
4
5
6
Valid for Release Issue07/04
Inverter Type Control Version
MICROMASTER 420 V1.1
0.12 kW - 11 kW
Electro-magnetic
compatibility (EMC)
Appendices
Index
7
A
B
C
D
E
F
Issue 07/04
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
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
MICROMASTER 420 Operating Instructions
4 6SE6400-5AA00-0BP0
Issue 07/04 Foreword
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.
Information is also available from:
Regional Contacts
Please get in touch with your contact for Technical Support in your Region for
questions about services, prices and conditions of Technical Support.
Central Technical Support
The competent consulting service for technical issues with a broad range of
requirements-based services around our products and systems.
The comprehensive, generally available information system over the Internet, from
product support to service & support to the support tools in the shop.
http://www.siemens.com/automation/service&support
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.
indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING
indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION
used with the safety alert symbol indicates a potentially hazardous situation which,
if not avoided, may result in minor or moderate injury.
PE
=Ground
CAUTION
used without safety alert symbol indicates a potentially hazardous situation which, i
not avoided, may result in a property damage.
NOTICE
indicates a potential situation which, if not avoided, may result in an undesirable
result or state.
NOTES
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.
♦ PE – Protective Earth uses circuit protective conductors sized for short circuits
where the voltage will not rise in excess of 50 Volts. This connection is normall
used to ground the inverter.
♦
- Is the ground connection where the reference voltage can be the same as
the 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
6 6SE6400-5AA00-0BP0
Issue 07/04 Safety Instructions
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
WARNING
♦ 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.
♦ HP ratings are based on the Siemens 1LA motors and are given for
guidance only, they do not necessarily comply with UL or NEMA HP
ratings.
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.
♦ 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.
Transport & Storage
WARNING
♦ Correct transport, storage, erection and mounting, as well as careful
operation and maintenance are essential for proper and safe operation of the
equipment.
CAUTION
♦ Protect the inverter against physical shocks and vibration during transport and
storage. Also be sure to protect it against water (rainfall) and excessive
temperatures (see Table 5-1 on page 158).
Commissioning
WARNING
♦ 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 - see DIN VDE 0160, section 5.5.2 and 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-
♦ This equipment must not be used as an ‘emergency stop mechanism’ (see
EN 60204, 9.2.5.4)
CAUTION
The connection of power, motor and control cables to the inverter must be carried
out as shown in Fig. 2-8 on page 33, to prevent inductive and capacitive
interference from affecting the correct functioning of the inverter.
MICROMASTER 420 Operating Instructions
8 6SE6400-5AA00-0BP0
Issue 07/04 Safety Instructions
Operation
WARNING
♦ Motor parameters must be accurately configured for the motor overload
protection to operate correctly.
♦ 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 and P0335, i
2
t is ON by
default. 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 V / 460 V when protected by a time delay fuse (see Tables starting on
page 160).
♦ This equipment must not be used as an ‘emergency stop mechanism’ (see
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.
♦ 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.
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 Pulse 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'.
MICROMASTER 420 Operating Instructions
18 6SE6400-5AA00-0BP0
Issue 07/04 1 Overview
1.2 Features
Main Characteristics
Easy installation
Easy commissioning
Rugged EMC design
Can be operated on IT line supplies
Fast repeatable response time to control signals
Comprehensive range of parameters enabling configuration for a wide range of
applications
Simple cable connection
1 Output relay
1 Analog output (0 – 20 mA)
3 Isolated and switchable NPN/PNP digital inputs
1 Analog input, ADC: 0 – 10 V
The analog input can be used as the 4
BICO technology
Modular design for extremely flexible configuration
High switching frequencies for low-noise motor operation
Detailed status information and integrated message functions
th
digital input
Performance Characteristics
V/f Control
♦ Flux Current Control (FCC) for improved dynamic response and motor
control
♦ Multi-point V/f characteristic
Automatic restart
Flying restart
Slip compensation
Fast Current Limitation (FCL) for trip-free operation
Motor holding brake
Built-in DC injection brake
Compound braking to improve braking performance
Setpoint input via:
♦ Analog input
♦ Communication interface
♦ JOG function
♦ Motorized potentiometer
♦ Fixed frequencies
Ramp function generator
♦ With smoothing
♦ Without smoothing
Closed-loop control with proportional-integral controller function (PI)
Overvoltage/undervoltage protection
Overtemperature protection for the inverter
Ground fault protection
Short-circuit protection
2
i
t thermal motor protection
PTC for motor protection
Options
Refer to Chapter 6
MICROMASTER 420 Operating Instructions
20 6SE6400-5AA00-0BP0
Issue 07/04 2 Installation
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 ................................................................................................................... 23
♦ 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.
♦ This equipment must not be used as an ‘emergency stop mechanism’ (see
EN 60204, 9.2.5.4)
CAUTION
The connection of power, motor and control cables to the inverter must be carried
out as shown in Fig. 2-8 on page 33, to prevent inductive and capacitive
interference from affecting the correct functioning of the inverter.
MICROMASTER 420 Operating Instructions
22 6SE6400-5AA00-0BP0
Issue 07/04 2 Installation
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.
Voltage
[%]
100
75
50
0,51
2468
Storage period less than 1 year:
Storage period 1 to 2 yearsPrior to energizing, connect to
Storage period 2 to 3 yearsPrior to energizing, form
Storage period 3 and more yearsPrior to energizing, form
If the inverter is to be installed at an altitude > 1000 m or > 2000 m above sea
level, derating will be required:
Permissible output current
100
%
80
01000
Installation altitude in m above sea level
Fig. 2-3 Installation altitude
Shock and Vibration
Do not drop the inverter or expose to sudden shock. Do not install the inverter in an
area where it is likely to be exposed to constant vibration.
Mechanical strength to DIN IEC 68-2-6
Deflection: 0.075 mm (10 ... 58 Hz)
Acceleration: 9.8 m/s
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.
2000
3000 4000
2
(> 58 ... 500 Hz)
Permissible input voltage
100
%
80
77
01000
Installation altitude in m above sea level
2000
3000 4000
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.
Installation and cooling
MICROMASTER 420 Operating Instructions
24 6SE6400-5AA00-0BP0
CAUTION
The inverters MUST NOT be mounted horizontally.
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.
Issue 07/04 2 Installation
2.3 Mechanical installation
WARNING
♦ 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 mounted adjacent to each other. If they are mounted on
top of each other, however, a clearance of 100 mm has to be observed.
4
Frame Size AFrame Size B
Ø 4.8 mm
55 mm
2.2"
160 mm
6.30"
Ø 4.5 mm
0.17"
0.19"
138 mm
5.43"
174 mm
6.85"
Frame Size C
Ø 5.5 mm
0.22"
174 mm
6.85"
204 mm
8.03"
Fig. 2-4 Drill pattern for MICROMASTER 420
Table 2-1 Dimensions and Torques of MICROMASTER 420
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
It is not permissible to connect MICROMASTER 4 drive converters equipped with
integrated filter to non-grounded line supplies.
If connected to non-grounded line supplies, the 'Y' capacitor must be disabled in
the device. The procedure is described in Attachment B.2.
The MICROMASTER operates on non-grounded line supplies and remains
operational if an input or output phase is connected to ground. In this particular
case, an output reactor must be installed.
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).
Operation with long cables
All inverters will operate at full specification with cable lengths up to 50 m screened
or 100 m unscreened.
When using output reactors as shown in Catalog DA 51.2, the following cable
lengths are possible for all of the types of construction/sizes:
Shielded: 200 m
Non-shielded: 300 m
MICROMASTER 420 Operating Instructions
28 6SE6400-5AA00-0BP0
Issue 07/04 2 Installation
2.4.2 Power and motor connections
WARNING
The inverter must always be grounded.
♦ 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 motors 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!
NOTICE
♦ Ensure that the appropriate circuit-breakers/fuses with the specified current
rating are connected between the power supply and inverter (see chapter 5,
Tables starting on page 160).
♦ Use Class 1 60/75
o
C copper wire only (for UL compliance). For tightening
torque see Table 5-2, page 159.
Access to the power and motor terminals
You can gain access to the mains and motor terminals by removing the covers
(see also Appendices A and B).
The mains and motor connections must be made as shown in Fig. 2-6.
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 trouble-free 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 (such as a PLC) connected to the
inverter 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 cables as much as possible,
using separate trunking, if necessary at 90º to each other.
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 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
32 6SE6400-5AA00-0BP0
Issue 07/04 2 Installation
2.4.5 Screening Methods
Gland Plate
The Gland Plate Kit is supplied as an option. It allows easy and efficient connection
of the necessary screening. See the Gland Plate Installation Instructions contained
on the Docu-CD.
Screening without a Gland Plate
Should a Gland Plate not be available, then the inverter can be screened using the
methodology shown in Fig. 2-8.
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
7 Screening cables
Fig. 2-8 Wiring Guidelines to Minimize the Effects of EMI
Explanation of the MICROMASTER 420 parameters
An overview of the parameter structure of MICROMASTER 420
A description of the display and operator control elements and communications
A block diagram of MICROMASTER 420
An overview of the various ways of commissioning the MICROMASTER 420
A description of the inputs and outputs
Possibilities of controlling the MICROMASTER 420
A description of the various functions of the MICROMASTER 420 and their
implementation
Explanation and information on the protective functions
3.21.1.5 Current limiting (Imax controller)........................................................................... 150
MICROMASTER 420 Operating Instructions
36 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
WARNING
MICROMASTER drive inverters operate with high voltages.
When electrical equipment is operated, then specific parts of this equipment are
at hazardous voltage levels.
Emergency switching-off devices in compliance with EN 60204 IEC 204 (VDE
0113) must remain functional in all operating modes of the control device. When
the Emergency switching-off device is reset, then it is not permissible that the
equipment runs-up again in an uncontrolled or undefined way.
In cases and situations where short-circuits in the control device can result in
significant material damage or even severe bodily injury (i.e. potentially
hazardous short-circuits), then additional external measures or
devices/equipment must be provided in order to ensure or force operation
without any potential hazards, even if a short-circuit occurs (e.g. independent
limit switches, mechanical interlocks etc.).
Certain parameter settings can mean that the drive inverter automatically
restarts after the power supply voltage fails and then returns.
The motor parameters must be precisely configured in order to ensure perfect
motor overload protection.
The drive inverter provides internal motor overload protection according to
UL508C, Section 42. Also refer to P0610, P0611 and P0335 - I
2
t is enabled in
the default setting.
The drive inverter is suitable for use in circuits which supply a maximum
symmetrical (balanced) current 10,000 A (RMS) at a maximum voltage of 230 V
/ 460 V – if it is protected using a type H or K fuse (also refer to Tables 5-5).
The drive unit may not be used as 'Emergency switching-off device' (refer to EN
60204, 9.2.5.4).
CAUTION
Only qualified personnel may commission (start-up) the equipment. Safety
measures and warnings must be always extremely carefully observed and fulfilled.
3.1.1 Setting / monitoring parameters and parameter attributes
The drive inverter is adapted to the particular application using the appropriate
parameters. This means that each parameter is identified by a parameter number,
parameter text and specific attributes (e.g. readable, can be written into, BICO
attribute, group attribute etc.). Within any one particular drive system, the
parameter number is unique. On the other hand, an attribute can be assigned a
multiple number of times so that several parameters can have the same attribute.
For MICROMASTER, parameters can be accessed using the following operator
units:
BOP (option)
AOP (option)
PC-based commissioning (start-up) tool "Drive Monitor" or "STARTER". These
PC-based tools are supplied on the CD-ROM.
The parameter types are the main differentiating feature of the parameters.
Fig. 3-1 Parameter types
Setting parameters
Parameters which can be written into and read – "P" parameters
These parameters are activated/de-activated in the individual functions and directly
influence the behavior of a function. The value of this parameter is saved in a nonvolatile memory (EEPROM) as long as the appropriate option was selected (nonvolatile data save). Otherwise, these values are saved in the non-volatile memory
(RAM) of the processor, which are lost after power failure or power-off/power-on
operations.
Notation:
P0927 setting parameter 927
P0748.1 setting parameter 748, bit 01
P0719[1] setting parameter 719 index 1
P0013[0...19] setting parameter 13 with 20 indices (indices 0 to 19)
Abbreviated notation
P0013[20] setting parameter 13 with 20 indices (indices 0 to 19)
Read (r....)Write/Read (P....)
"normal"
Read parameters
Parameter
BICO outputBICO input
"normal"
Write-/Read parameters
MICROMASTER 420 Operating Instructions
38 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
Monitoring parameters
These can only be read – "r" parameters
These parameters are used to display internal quantities, for example states and
actual values. These parameters are indispensable, especially for diagnostics.
Notation:
r0002 monitoring parameter 2
r0052.3 monitoring parameter 52, bit 03
r0947[2] monitoring parameter 947 index 2
r0964[0...4] monitoring parameter 964 with 5 indices (indices 0 to 4)
Abbreviated notation
r0964[5] monitoring parameter 964 with 5 indices (indices 0 to 4)
NOTE
A parameter (e.g. P0013[20]) with x consecutive
elements (in this case: 20) is defined using an index. x is
defined by the numerical index value. When transferred to
a parameter this means that an indexed parameter can
assume several values. The values are addressed via the
parameter number including the index value (e.g.
P0013[0], P0013[1], P0013[2], P0013[3], P0013[4], ...).
Index parameters, for example, are used for:
P0013[0]
P0013[1]
P0013[2]
.
.
.
P0013[18]
P0013[19]
Table functions
Sub-functions
In addition to the parameter number and parameter text, every setting and
monitoring parameter has different attributes which are used to individually define
the properties/characteristics of the parameter. The attributes are listed in the
following Table (refer to Table 3-1) which are used for MICROMASTER.
The data type of a parameter defines the maximum possible value range. 3 data
U16 Unsigned, integer value with a size of 16 bits,
U32 Unsigned, integer value with a size of 32 bits
Float A simple precise floating point value according to the IEEE standard format
The value range, which is specified as a result of the data type, is restricted/limited by
- No value entered (e.g.: "r parameter")
Min Minimum value
Def Default value
Max Maximum value
For MICROMASTER, the units of a particular parameter involve the physical quantity
- No dimension
% Percentage
A Ampere
V Volt
Ohm Ohm
us Microseconds
ms Milliseconds
s Seconds
Hz Hertz
kHz Kilohertz
1/min Revolutions per minute [RPM]
m/s Meters per second
Nm Newton meter
W Watt
kW Kilowatt
Hp Horse power
kWh Kilowatt hours
°C Degrees Celsius
m Meter
kg Kilograms
° Degrees (angular degrees)
types are used for MICROMASTER. They either represent an unsigned integer value
(U16, U32) or a floating-point value (float). The value range is frequently restricted by
a minimum, maximum value (min, max) or using drive inverter/motor quantities.
max. value range: 0 .... 65535
max. value range: 0 .... 4294967295
+38
max. value range: -3.39e
the minimum, maximum value (min, max) and using drive inverter/motor quantities.
Straightforward commissioning (start-up) is guaranteed in so much that the
parameters have a default value. These values (min, def, max) are permanently
saved in the drive inverter and cannot be changed by the user.
(e.g. m, s, A). Quantities are measurable properties/characteristics of physical
objects, operations, states and are represented using characters of a formula (e.g. V
= 9 V).
– +3.39e
+38
MICROMASTER 420 Operating Instructions
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Attribute
group
Access level
Grouping
BICO
Change state
QC.
Attribute Description
The access level is controlled using parameter P0003. In this case, only those
parameters are visible at the BOP or AOP, where the access level is less than or
equal to the value assigned in parameter P0003. On the other hand, for DriveMonitor
and STARTER, only access levels 0 and 4 are relevant. For example, parameters
with access level 4 cannot be changed if the appropriate access level has not been
set.
The following access levels are implemented in the family of MICROMASTER drive
units:
0 User-defined parameter list (refer to P0013)
1 Standard access to the most frequently used parameters
2 Extended access, e.g. to drive inverter I/O functions
3 Expert access only for experienced users
As far as the ability to visualize the parameters is concerned, the group assignment of
the individual parameters must be taken into account. Parameter P0004 is used for
the control (refer to the Grouping).
The parameters are sub-divided into groups according to their functionality. This
increases the transparency and allows a parameter to be quickly searched for.
Furthermore, parameter P0004 can be used to control the ability to be visualized for
the BOP / AOP.
Main parameter area:
Connector Output (CO) and Connector Output / Binector Output (CO/BO), refer to
Section 3.1.2.3
BI Binector Input
BO Binector Output
CI Connector Input
CO Connector Output
CO/BO Connector Output / Binector Output
"P" parameters can only be changed depending on the drive state. The parameter
value is not accepted if the instantaneous state is not listed in the parameter attribute
"Change state". For instance, the commissioning (start-up) parameter P0010 with the
attribute "CT" can only be changed in quick start-up "C" or ready "T" but not in run
"U".
C Quick commissioning (start-up)
U Operation (run)
T Ready
This parameter attribute identifies as to whether the parameter is included in the quick
commissioning (start-up) (P0010 = 1).
No The parameter is not included in the quick commissioning (start-up)
Yes The parameter is included in the quick commissioning (start-up)
This attribute is only of importance in conjunction with a BOP. The "Immediate"
Immediately
After
actuation
attribute indicates that this value is already accepted when scrolling (when changing
the value with
functions have this property (e.g. constant voltage boost P1310 or filter time
constants). On the other hand, for parameters with the attribute "After actuation", the
value is only accepted after first actuating the key
parameters where the parameter value can have different settings/meanings (e.g.
selecting the frequency setpoint source P1000).
The value becomes valid by either scrolling with
The value is only accepted by pressing
or ). Especially parameters which are used for optimization
. These include, for example,
or
The attributes and groups are shown, in the parameter list, in the header line of the
parameter. This is shown as an example in Fig. 3-2 using parameter P0305.
BICO (if exist)
Parameter text
Rated motor current
CStat:
P-Group:
C
MOTORfirst confirm
Datatype:
Acti ve:
Active
Datatype
FloatA3.25
UnitDef:
QuickComm. Yes
QuickComm.
Unit
Min:
Max:
Access level
0.01
10000.00
Level:
1
Fig. 3-2 Header line for parameter P0305
MICROMASTER 420 Operating Instructions
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The interrelationship between access level P0003 and the grouping P0004 is
schematically shown in Fig. 3-3.
User access level
P0003 = 1
2
3
4
Standard
Extended
Expert
Service
P0004 = 0
(no filter function)
allows direct access
to the parameters.
For BOP and AOP
depending on the
selected access level
P0004 = 21
Alarms, Warnings &
Monitoring
P0004 = 2, P0003 = 1
Parameters level 1
concerning the inverter unit
P0004 = 2, P0003 = 3
Parameters level 1, 2 and 3
concerning the inverter unit
P0004 = 22
PID Controller
P0003 = 1
P0003 = 2
P0004 = 2
Inverter Unit
P0004 = 2, P0003 = 2
Parameters level 1 and 2
concerning the inverter unit
P0004 = 2, P0003 = 4
Parameters level 1, 2, 3 and 4
concerning the inverter unit
P0004 = 2
Inverter Unit
P0200 ... P0299
P0004 = 3
Motor Data
P0300 ... P0399
P0600 ... P0699
P0004 = 20
Communication
P2000 ... P2099
P0004 = 13
Motor Control
P1300 ... P1799
P0004 = 12
Drive Features
P1200 ... P1299
P0004 = 10
Setpoint Channel &
Ramp Generator
P1000 ... P1199
Fig. 3-3 Parameter grouping / access
P0003 = 3
P0003 = 4
P0004 = 8
Analogue I/O
P0750 ... P0799
P0004 = 7
Commands and
Digital I/O
P0700 ... P0749
P0800 ... P0899
A state-of-the-art drive unit must be able to interconnect internal and external
signals (setpoint / actual values and control / status signal). This interconnection
functionality must have a high degree of flexibility in order to be able to adapt the
drive to new applications. Further, a high degree of usability is required, which also
fulfills standard applications. This is the reason that within the MICROMASTER
series of drive units, BICO technology (→ flexibility) and fast parameterization
using parameters P0700 / P1000 (→ usability) or P0719 (→ combination
P0700/P1000) have been introduced to be able to fulfill both of these requirements.
3.1.2.1 Selecting the command source P0700 / selecting the setpoint source
P1000
The following parameters can be used to quickly interconnect setpoints and control
signals:
P0700 "Selection of command source"
P1000 "Selection of setpoint source"
These parameters are used to define via which interface the drive inverter receives
the setpoint or the power-on/power-off command. The interfaces, listed in Table
3-2 can be selected for the command source P0700.
Table 3-2 Parameter P0700
Parameter values Significance / command source
0
1
2
4
5
6
Factory default
BOP (operator panel, refer to Section 3.2.1)
Terminal strip
USS on BOP link
USS on COM link
CB on COM link
The following internal or external sources / interfaces can be selected for the
frequency setpoint source P1000. In addition to the main setpoint (1
supplementary setpoint (2
nd
position) can be selected (refer to Table 3-3).
st
position), a
MICROMASTER 420 Operating Instructions
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Table 3-3 Parameter P1000
Parameter values
0
1
2
3
4
5
6
10
11
12 Analog setpoint MOP setpoint
..
..
66
Main setpoint source Supplementary setpoint source
No main setpoint -
MOP setpoint (motorized
potentiometer)
Analog setpoint -
Fixed frequency -
USS on BOP link -
USS on COM link -
CB on COM link -
No main setpoint MOP setpoint
MOP setpoint MOP setpoint
.. ..
.. ..
CB on COM link CB on COM link
Significance
-
NOTE Communications between the AOP and MICROMASTER are established using
the USS protocol. The AOP can be connected to both the BOP link (RS 232) as
well as at the COM link interface (RS 485) of the drive inverter. If the AOP is to
be used as command source or setpoint source then for parameter P0700 or
P1000, either "USS on BOP link" or "USS on COM link" should be selected.
The complete list of all of the setting possibilities can be taken from the
parameter list (refer to parameter list P1000).
Parameters P0700 and P1000 have the following default settings:
a) P0700 = 2 (terminal strip)
b) P1000 = 2 (analog setpoint)
In this case, the selection of the command source is made independently of the
selection of the frequency setpoint source. This means that the source to enter the
setpoint does not have to match the source to enter the power-on/power-off
command (command source). This means, for example, that the setpoint (P1000 =
4) can be connected via an external device which is connected to the BOP link
interface via USS and the control ON/OFF command, etc. is entered via digital
inputs (terminals, P0700 = 2).
CAUTION
When modifying P0700 or P1000, then the drive inverter also changes the
subordinate BICO parameters (refer to the parameter list for P0700 or P1000
and the appropriate tables)
No priority has assigned between the direct BICO parameterization and
3.1.2.2 Selection of command/frequency setpoint P0719
Parameter P0719 represents a combination of the functionalities of the two
parameters P0700 and P1000. Here, it is possible to changeover the command
source as well as also the frequency setpoint source via a parameter change.
Contrary to P0700 and P1000, for parameter P0719, the subordinate (lower-level)
BICO parameters are not changed
PC tools in order to briefly retrieve the control authority for the drive without having
to change the existing BICO parameterization. Parameter P0719 "Selection of
command/frequency setpoint" comprises the command source (Cmd) and the
frequency setpoint (setpoint).
Table 3-4 Parameter P0719
. This characteristic/feature is especially used by
Parameter values
0
1
2
3
4
5
6
10
11
12 Cmd = BOP Setpoint = Analog setpoint
..
..
64
66
Cmd = BICO parameter Setpoint = BICO parameter
Cmd = BICO parameter Setpoint = MOP setpoint
Cmd = BICO parameter Setpoint = Analog setpoint
Cmd = BICO parameter Setpoint = Fixed frequency
Cmd = BICO parameter Setpoint = USS BOP link
Cmd = BICO parameter Setpoint = USS COM link
Cmd = BICO parameter Setpoint = CB COM link
Cmd = BOP Setpoint = BICO parameter
Cmd = BOP Setpoint = MOP setpoint
.. ..
.. ..
Cmd = CB on COM link Setpoint = USS on BOP link
Cmd = CB on COM link Setpoint = USS on COM link
Command source Setpoint source (frequency source)
Significance
NOTE
The complete list of all of the possible settings can be taken from the parameter
list (refer to the parameter list, P0719).
Contrary to parameter P0700 and P1000, subordinate BICO parameters are not
changed for parameter P0719. This characteristic/feature can be used during
service if the control authority must be briefly and quickly re-assigned (e.g.
selecting and executing the motor data identification routine using a PC-based
tool).
MICROMASTER 420 Operating Instructions
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3.1.2.3 BICO technology
Using BICO technology (English: Binector Connector Technology), process data
can be freely interconnected using the "standard" drive parameterization. In this
case, all values which can be freely interconnected (e.g. frequency setpoint,
frequency actual value, current actual value, etc.) can be defined as "Connectors"
and all digital signals which can be freely interconnected (e.g. status of a digital
input, ON/OFF, message function when a limit is violated etc.) can be defined as
"Binectors".
There are many input and output quantities as well as quantities within the control
which can be interconnected in a drive unit. It is possible to adapt the drive to the
various requirements using BICO technology.
A binector is a digital (binary) signal without any units and which can either have
the value 0 or 1. Binectors always refer to functions whereby they are sub-divided
into binector inputs and binector outputs (refer to Fig. 3-4). In this case, the
binector input is always designated using a "P" parameter plus attribute "BI" (e.g.:
P0731 BI: Function, digital output 1), while the binector output is always
represented using an "r" parameter plus attribute "BO" (e.g.: r0751 BO: ADC status
word).
As can be seen from the examples above, the binector parameters have the
following abbreviations in front of the parameter names:
BI Binector Input, signal receiver ("P" parameters)
→ The BI parameter can be interconnected with a binector output as source, by
entering the parameter number of the binector output (BO parameter) as
value in the BI parameter (e.g.: Interconnecting the "BO" parameter r0751
with "BI" parameter P0731 → P0731 = 751).
BO Binector Output, signal source ("r" parameters)
→ The BO parameter can be used as source for BI parameters. For the
particular interconnection the BO parameter number must be entered into
the BI parameter (e.g.: Interconnecting the "BO" parameter r0751 with "BI"
A connector is a value (16 or 32 bit), which can include a normalized quantity
(without dimension) as well as also a quantity with associated units. Connectors
always refer to functions whereby they are sub-divided into connector inputs and
connector outputs (refer to Fig. 3-5). Essentially the same as the binectors, the
connector inputs are characterized by a "P" parameter plus attribute "CI" (e.g.:
P0771 CI: DAC); while the connector outputs are always represented using an "r"
parameter plus attribute "CO" (e.g.: r0021 CO: Smoothed output frequency).
As can be seen from the examples above, connector parameters have the
following abbreviations in front of the parameter names:
CI Connector Input, signal sink ("P" parameters)
→ The CI parameter can be interconnected with a connector output as source,
by entering the parameter number of the connector output (CO parameter)
as value in the CI parameter (e.g.: P0771 = 21).
CO Connector Output, signal source ("r" parameters)
→ The CO parameter can be used as source for CI parameters. For the
particular interconnection, the CO parameter number must be entered in the
CI parameter (e.g.: P0771 = 21).
Further, MICROMASTER has "r" parameters where several binector outputs are
combined in a word (e.g.: r0052 CO/BO: Status word 1). This feature reduces, on
one hand, the number of parameters and simplifies parameterization via the serial
interface (data transfer). This parameter is further characterized by the fact that it
does not have any units and each bit represents a digital (binary) signal.
As can be seen from the examples of parameters, these combined parameters
have the following abbreviation in front of the parameter names:
CO/BO Connector Output / Binector Output, signal source ("r"
parameters)
→ CO/BO parameters can be used as source for CI parameters and BI
parameters:
a) In order to interconnect all of the CO/BO parameters, the parameter
number must be entered into the appropriate CI parameter (e.g.:
P2016[0] = 52).
b) When interconnecting a single digital signal, in addition to the CO/BO
parameter number, the bit number must also be entered into the BI
parameter (e.g.: P0731 = 52.3)
Abbreviation and symbol Name Function
CI
CO
CO
BO
Fig. 3-5 Connectors
Connector input
(signal receiver)
Connector output
(signal source)
Binector/connector
output
(signal source)
Data flow
Pxxxx
CI: ...
Function
Functions
Function
Data flow
Data flow
CO/BO: ...
rxxxx
CO: ...
rxxxx
MICROMASTER 420 Operating Instructions
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In order to interconnect two signals, a BICO setting parameter (signal receiver)
must be assigned the required BICO monitoring parameter (signal source). A
typical BICO interconnection is shown using the following examples (refer to Fig.
3-6).
Connector output (CO) ===> Connector input (CI)
CI: Main setpoint
Function
FB
CO: Act. ADC after scal. [4000h]
r0755
P1070
(755)
Function
P1070 = 755
Binector output (BO) ===> Binector input (BI)
BI: ON/OFF1
P0840
Function
FB
BO: Status word of ADC
r0751
P0840
P0840
(751:0)
(751:0)
(751:0)
Function
FB
P0840 = 751.0
Connector output / Binector output (CO/BO)
P2051 = 52
CO/BO: Act. status word 1
FB
Function
r0052
r0052
BI: Function of digital output 1
CI: PZD to CB
P2051
(52)
P0731FBP0731
P0731
(52:3)
Function
FB
Function
P0731 = 52.3
Fig. 3-6 BICO connections (examples)
NOTE
BICO parameters with the CO, BO or CO/BO attributes can be used a multiple
number of times.
When being output or read-in by the drive inverter, physical quantities are
normalized or de-normalized. This conversion is made directly by the particular
interface using the reference quantities. The normalization / de-normalization is
carried-out for the following interfaces:
Table 3-5 Normalized interfaces
Interface 100 %
Analog input (voltage input) 10 V
Analog output (current output) 20 mA
USS 4000 h
CB 4000 h
Further, a normalization is carried-out for a BICO connection if the connector
output (CO) represents a physical quantity and the connector input (CI) a
normalized (percentage) quantity (e.g. PID controller). A de-normalization is
carried-out if the inverse applies.
Reference quantities (normalization quantities) are intended to allow setpoints and
actual signals to be represented in a uniform, standard way (normalization / denormalization of physical quantities such as setpoint and actual frequency). This
also applies to permanently set parameters that are assigned the "percentage"
units. A value of 100 % corresponds in this case to a process data value PZD of
4000 h (USS or CB) or a current value of 20 mA (analog output) or a voltage value
of 10 V (analog input). The following reference parameters and permanently saved
reference values are available:
Table 3-6 Normalization functions
Parameter Designation Value (100 % / 4000
h)
P2000 Reference frequency P2000 Hz
P2001 Reference voltage P2001 V
P2002 Reference current P2002 A
- Reference speed P2000
- Reference temperature 100 °C °C
- Reference energy 100 kWh kWh
60 / r0313 RPM
*
Units
MICROMASTER 420 Operating Instructions
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Example
The normalization / de-normalization via the "USS to BOP link" serial interface is
shown using the reference frequency P2000.
If the connection between two BICO parameters is closed (directly using BICO
parameters or indirectly using P0719 or P1000), that have a different
representation/notation (normalized representation (hex) or physical representation
(Hz)), then the following normalization is made in the drive inverter to the target
value:
P2016
r0021
x[Hz]y[Hex]
[0]
[1]
[2]
[3]
USS-PZD
BOP-Link
r0021[Hz]
y[Hex]⋅=
P2000[Hz]
]Hex[4000
r2015
USS-PZD
BOP-Link
Fig. 3-7 Normalization / de-normalization
[0]
[1]
[2]
[3]
x[Hex]
P1070
y[Hz]
r2015[1]
y[Hz]⋅=
4000[Hex]
2000P
Note
Analog values are limited to 10 V or 20 mA. A maximum of 100 % can be output
/ read-in referred to the appropriate reference values as long as no DAC/ADC
scaling (factory setting) was made.
Setpoints and actual value signals via the serial interface:
♦ When transferring this data via the PZD part, it is limited to the value 7FFF h.
This is the reason that the max. value 200 % is referred to the reference
value.
♦ When transferring this data via the PKW part, it is transferred as a function of
the data type and units.
Parameter P1082 (max. frequency) limits, in the drive inverter, the frequency
independently of the reference frequency. This is the reason that when P1082 is
changed (factory setting: 50 Hz), then the P2000 (factory setting: 50 Hz) should
always be adapted. For instance, if for a NEMA motor the parameter is set to 60
Hz and P2000 is not changed, then the analog setpoint / actual value at 100 %
or a setpoint/actual value signal at 4000 h is limited to 50 Hz!
MICROMASTER drive units can be optionally equipped with a BOP (Basic
Operator Panel) or AOP (Advanced Operator Panel). The AOP distinguishes itself
as a result of a plain text display which simplifies operator control, diagnostics as
well as also commissioning (start-up).
BOP AOP
Fig. 3-8 Operator panels
3.2.1 Description of the BOP (Basic Operator Panel)
The BOP, available as option, allows drive inverter parameters to be accessed. In
this case, the Status Display Panel (SDP) must be removed and the BOP either
inserted or connected in the door of a cabinet using a special mounting kit
(operator panel - door mounting kit) (refer to the Attachment A).
Parameter values can be changed using the BOP. This allows the
MICROMASTER drive unit to be set-up for a particular application. In addition to
the keys (refer to Section 3.2.3), it includes a 5-digit LCD display on which the
parameter numbers rxxxx and Pxxxx, parameter values, parameter units (e.g. [A],
[V], [Hz], [s]), alarm Axxxx or fault messages Fxxxx as well as setpoints and actual
values.
NOTE
Contrary to the AOP, for the BOP, parameters do not have to be set or taken
into consideration when establishing the communications between the BOP and
drive inverter.
A BOP does not have a local memory. This means that it is not possible to save
a parameter set on the BOP.
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3.2.2 Description of the AOP (Advanced Operator Panel)
An AOP (this is available as option) has the following additional functions with
respect to a BOP:
Multi-language and multi-line plain text display
Units are additionally displayed, such as [Nm], [°C], etc.
Active parameters, fault messages, etc. are explained
Diagnostics menu to support troubleshooting
The main menu is directly called by simultaneously pressing keys Fn and P
Timer with 3 switching operations per entry
Up to 10 parameter sets can be downloaded / saved
Communications between an AOP and MICROMASTER are realized using the
USS protocol. An AOP can be connected to the BOP link (RS 232) as well as to
the COM link interface (RS 485) of the drive inverter.
Multi-point capable coupling to control (open-loop) and visualize up to 31
MICROMASTER drive inverters. The USS bus must, in this case, be configured
and parameterized via the drive inverter terminals of the COM link interface.
Please refer to Sections 3.2.3, 3.2.4 and the AOP Manual for additional details.
NOTE Contrary to the BOP, for the AOP, the communications parameters of the
particular interface must be taken into account.
When inserting / connecting to the drive inverter, the AOP automatically
changes the parameter P2012 (USS-PZD length) to 4 corresponding to the
interface.
COM link: P2012[0]
BOP link: P2012[1]
For DriveMonitor, the default value for the USS-PZD length is set to 2. This
results in a conflict if the AOP and the DriveMonitor are operated, alternating, at
3.2.3 Keys and their functions on the operator panel (BOP / AOP)
Operator
panel/key
Function Effects
Indicates
Status
Start
converter
Stop
converter
Change
direction
Jog motor
Functions
Access
parameters
Increase
value
Decrease
value
The LCD displays the settings currently used by the converter.
Pressing the button starts the converter. This button is disabled by default.
Activate the button:
BOP: P0700 = 1 or P0719 = 10 ... 16
AOP: P0700 = 4 or P0719 = 40 ... 46 on BOP link
P0700 = 5 or P0719 = 50 ... 56 on COM link
OFF1 Pressing the button causes the motor to come to a standstill at the
selected ramp down rate.
Activate the button: see button "Start converter"
OFF2 Pressing the button twice (or once long) causes the motor to coast to a
standstill.
BOP: This function is always enabled
(independent of P0700 or P0719).
Press this button to change the direction of rotation of the motor. Reverse is
indicated by a minus (-) sign or a flashing decimal point. Disabled by default.
Activate the button: see button "Start converter".
In the "Ready to power-on" state, when this key is pressed, the motor starts and
rotates with the pre-set jog frequency. The motor stops when the button is
released. Pressing this button when the motor is running has no effect.
This button can be used to view additional information.
It works by pressing and holding the button. It shows the following, starting from
any parameter during operation:
1. DC link voltage (indicated by d – units V).
2. output current. (A)
3. output frequency (Hz)
4. output voltage (indicated by o – units V).
5. The value selected in P0005 (If P0005 is set to show any of the above (1 - 4)
then this will not be shown again).
Additional presses will toggle around the above displays.
Jump Function
From any parameter (rxxxx or Pxxxx) a short press of the Fn button will
immediately jump to r0000, you can then change another parameter, if required.
Upon returning to r0000, pressing the Fn button will return you to your starting
point.
Acknowledgement
If alarm and fault messages are present, then these can be acknowledged by
pressing key Fn.
Pressing this button allows access to the parameters.
Pressing this button increases the displayed value.
Pressing this button decreases the displayed value.
AOP menu
+
Calls the AOP menu prompting (this is only available for AOP).
Fig. 3-9 Operator panel keys
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3.2.4 Changing parameters using the operator panel
The way that parameter P0719 can be changed will now be described; please use
this description as a basis when setting all of the other parameters using the BOP.
Changing P0004 – parameter filter function
Step
Press in order to access the parameter
1
2
Press until P0004 is displayed
Press in order to reach the parameter value level
3
4
Press or
Press to acknowledge the value and to save the value
5
The user can only see the command parameters.
6
in order to obtain the required value
Result on the display
Changing an indexed parameter P0719 – selecting the command/frequency
setpoint
Step
Press in order to access the parameter
1
2
Press until P0719 is displayed
Press in order to reach the parameter value
3
Result on the display
Press in order to display the currently set value
4
5
Press or in order to obtain the required value
Press to acknowledge the value and to save the value
6
7
Press until r0000 is displayed
Press in order to return to the operating display
8
(the display which the customer has defined)
Fig. 3-10 Changing parameters using the BOP
NOTE
The BOP sometimes display when changing parameter values. This
means that the drive inverter is presently handling another higher-priority task.
30 V DC / 5 A (resistive)
250 V AC / 2 A (inductive)
0 - 20 mA
max. 500 Ω
The analog input circuit can be
alternatively configured to
provide an additional digital
input (DIN4):
DIN4
2
3
4
PNP
or
NPN
Relay
5
6
7
8
9
10
11
12
13
14
15
DIN1
DIN2
DIN3
RL1-B
RL1-C
DAC+
DAC-
P+
N-
RS485
CB
Option
Output +24 V
max. 100 mA
(isolated)
Output 0 V
max. 100 mA
(isolated)
D/A
COM link
automatic
CPU
Not
used
12
DIP switch
150.00
Hz
Fn
I
Jog
P
0
BOP/AOP
60 Hz
50 Hz
=
PE
~
=
DC+
DC−
DC-link connection
3 ~
U,V,W
M
9
-+
24 V
Fig. 3-11 MICROMASTER 420 – block diagram
MICROMASTER 420 Operating Instructions
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Issue 07/04 3 Functions
3.4 Factory setting
The MICROMASTER drive unit is shipped from the
plant with a Status Display Panel (SDP, refer to Fig.
3-12). The SDP has two LEDs on the front panel
which display the operating state of the drive inverter
(refer to Section 4.1).
When MICROMASTER is shipped from the plant with
the SDP functioning, it can be operated without any
additional parameterization. In this case, the drive
inverter default settings (which depend on the drive
inverter type / size) match the following data of a 4pole motor:
Rated motor power P0307
Fig. 3-12 Status Display
Panel (SDP)
Rated motor voltage P0304
Rated motor current P0305
Rated motor frequency P0310
(We recommend a Siemens standard motor.)
Further, the following conditions must be fulfilled:
Control (ON/OFF command) via digital inputs (refer to Table 3-7)
Setpoint input via analog input 1 P1000 = 2
Induction motor P0300 = 1
Self-cooled motor P0335 = 0
Motor overload factor P0640 = 150 %
Min. frequency P1080 = 0 Hz
Max. frequency P1082 = 50 Hz
Ramp-up time P1120 = 10 s
Ramp-down time P1121 = 10 s
Linear V/f characteristic P1300 = 0
Table 3-7 Pre-assignment of the digital inputs
Digital inputs Terminals Parameter Function Active
Command source - P0700 = 2 Terminal strip Yes
Digital input 1 5 P0701 = 1 ON / OFF1 Yes
Digital input 2 6 P0702 = 12 Reversing Yes
Digital input 3 7 P0703 = 9 Fault acknowledge Yes
Digital input 4 Via ADC P0704 = 0 Digital input disabled No
If the various prerequisites are fulfilled and the appropriate conditions present, then
after the motor has been connected and the power connected, then the following is
possible with the factory setting:
The motor can be started and stopped (via DIN1 with external switch)
The direction of rotation can be reversed (via DIN2 with external switch)
Faults reset (via DIN3 with external switch)
A frequency setpoint can be entered (via ADC with external
potentiometer, default setting of
the ADC: unipolar voltage input)
The frequency actual value can be output (via DAC,
DAC output: current output)
The potentiometer and the external switches can be connected through the drive
inverter internal power supply, as shown in Fig. 3-13.
I/O
Ack
Digital Inputs
Analog input
< 4.7 k Ω
Pre-assignment of the digital inputs DIN1 to DIN3, refer to Table 3-7.
Fig. 3-13 Recommended wiring for the factory setting
If settings have to be made which go beyond the factory setting, then depending on
the complexity of the application, when commissioning the drive system, the
particular function description as well as the parameter list including function charts
must be carefully taken into consideration.
MICROMASTER 420 Operating Instructions
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3.5 Commissioning
A differentiation is made between the following scenarios when commissioning
MICROMASTER:
50/60-Hz changeover Quick commissioning
Motor data identification Calculating the motor / control data
Series commissioning Commissioning the application
When commissioning, initially, a quick commissioning should be carried-out. The
actual application should only be commissioned if the drive inverter – motor
combination provides a satisfactory result.
If the drive is to be commissioned from a defined state, then the drive inverter can
be reset to the initial state when it left the plant. This is done as follows:
Reset parameters to the factory setting (refer to Section 3.5.7)
Check list
The following check list is intended to help you to simply commission
MICROMASTER and to guarantee a high degree of availability:
For all activities relating to ESDS measures
All of the screws must have been tightened to their specified torque.
All connectors / option modules have been correctly inserted and interlocked /
screwed into place.
The DC link pre-charging must have been completed.
All of the components are grounded at the locations provided and all of the
shields have been connected.
MICROMASTER has been designed for defined mechanical, climatic and
electrical ambient conditions. The limit values may neither be exceeded in
operation nor during transport. The following must always be carefully
observed:
♦ Line supply conditions
♦ Level of pollutants and contaminants
♦ Gases and vapors that can have a negative impact on the function of the
drive inverter
♦ Climatic ambient conditions
♦ Storage / transport
♦ Shock stressing
♦ Vibration stressing
♦ Ambient temperature
♦ Installation altitude
In order to ensure that the drive inverter is successfully commissioned, in addition
to completely carrying-out all of the installation work, it is important to note that the
drive inverter may not be disconnected from the line supply while parameterizing
the drive unit. If commissioning is interrupted due to a power failure, then
parameters could be lost. In this case, commissioning must always be re-started (it
may be necessary to restore the parameters to the factory setting (refer to Section
3.5.7).
MICROMASTER 420 Operating Instructions
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3.5.1 50/60 Hz setting
The frequency setting made in the factory can be adapted to the North American
market, without requiring any parameterization using an operator panel or PC tool
using the 50/60 Hz DIP switch (refer to Fig. 3-15).
60 Hz
50 Hz
50/60 Hz DIP switch
for frequency setting
Fig. 3-15 DIP switch to change-over between 50/60 Hz
The switch determines the value of parameter P0100 corresponding to the
following diagram (refer to Fig. 3-16). Besides P0100 = 2, after the power supply
voltage has been switched-in, the 50/60 Hz DIP switch determines the 50/60 Hz
setting (value of parameter P0100).
Power
cycle
P0100 = 2
?
no
DIP2 = OFF
?
yes
Power in kW
Frequency 50 Hz
P0100 = 0P0100 = 2P0100 = 1
yes
no
Power in kW
Frequency 60 Hz
commissioning
P0010 = 1
yes
P0100 = 2
no
P0100 = 1
Power in hp
Frequency 60 Hz
Quick
?
no
?
yes
Fig. 3-16 Mode of operation of the 50/60 Hz DIP switch in conjunction with P0100
By changing the setting of 50/60 Hz DIP switch, after the drive inverter has been
powered-down/powered-up, the parameters for the rated motor frequency P0310,
max. frequency P1082 and reference frequency P2000 are automatically pre-set.
In addition, the rated motor parameters as well as all of the other parameters which
depend on the rated motor parameters, are reset. The units of the power
parameters are, depending on P0100, are either interpreted as kW value or hp
value.
3.5.2 Quick commissioning
If there is still no appropriate parameter set for the drive, then a quick
commissioning must be carried-out including a motor data identification routine.
The following operator units can be used to carry-out quick commissioning:
When the quick commissioning is carried-out, the motor – drive inverter is basically
commissioned; the following data must be obtained, modified or entered before
quick commissioning is started:
Enter the line supply frequency
Enter the rating plate data
Command / setpoint sources
Min. / max. frequency or ramp-up / ramp-down time
Control mode
Motor data identification
Parameterizing the drive with BOP or AOP
The frequency inverter is adapted to the motor using the quick commissioning
function and important technological parameters are set. The quick commissioning
shouldn't be carried-out if the rated motor data saved in the frequency inverter
(4-pole 1LA Siemens motor, star circuit configuration
specific) match the rating plate data.
Parameters, designated with a * offer more setting possibilities than are actually
listed here. Refer to the parameter list for additional setting possibilities.
START
P0003 = 2
P0010 = 1
Factory setting
User access level *
1 Standard: Allows access into most frequently used parameters
2 Extended: Allows extended access e.g. to inverter I/O functions
3 Expert (For expert use only)
Commissioning parameter *
0 Ready
1 Quick commissioning
30 Factory setting
NOTE
P0010 should be set to 1 in order to parameterize the data of the motor rating
plate.
frequency inverter (FU)-
1
0
MICROMASTER 420 Operating Instructions
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P0100 =...
P0100 = 1, 2
P0100 = 0
P0304 =...
P0305 =...
P0307 =...
P0309 =...
P0304 =...
P0305 =...
P0307 =...
P0308 =...P0308 =...
P0309 =...
P0310 =...
P0311 =...
P0335 =...
P0640 =...
Europe/ North America
(enters the line supply frequency)
0 Europe [kW],
frequency default 50 Hz
1 North America [hp], frequency default
2 North America [kW], frequency default
NOTE
0
60 Hz
60 Hz
60 Hz
50 Hz
50/60 Hz DIP switch
for frequency setting
For P0100 = 0 or 1, the setting of switch DIP2(2)
determines the value of P0100 (refer to the
parameter list).
Rated motor voltage
FU-spec.
(Nominal motor voltage [V] from rating
plate)
The rated motor voltage on the rating
plate must be checked, regarding the
star/delta circuit configuration to ensure
P0310
P0304
that it matches with the circuit
connection configured at the motor
terminal board
Rated motor current
FU-spec.
(Nominal motor current [A] from rating
plate)
Rated motor power
FU-spec.
(Nominal motor power [kW/hp] from
P0305
P0307
P0308 P0311
rating plate)
If P0100 = 0 or 2, value will be in kW. If
P0100 = 1, value will be in in hp.
Rated motor cosPhi
(Nominal motor power factor (cos ϕ) from rating plate)
If the setting is 0, the value is automatically calculated
P0100 = 1,2: P0308 no significance, no entry required.
Rated motor efficiency
(Nominal motor efficiency in [%] from rating plate)
Setting 0 causes internal calculation of value.
P0100 = 0: P0309 no significance, no entry required.
Rated motor frequency
(Nominal motor frequency in [Hz] from rating plate)
Pole pair number recalculated automatically if parameter is changed.
Rated motor speed
(Nominal motor speed in [rpm] from rating plate)
Setting 0 causes internal calculation of value.
NOTE
For slip compensation, the input is absolutely necessary.
Motor cooling
(Selects motor cooling system used)
0 Self-cooled: Using shaft mounted fan attached to motor
1 Force-cooled: Using separately powered cooling fan
Motor overload factor
(Motor overload factor in [%] relative to P0305)
This defines the limit of the maximum output current as a % of the rated motor
current (P0305).
0 Factory default setting
1 BOP (keypad)
2 Terminal
4 USS on BOP link
5 USS on COM link
6 CB on COM link
Selection of frequency setpoint
1 MOP setpoint
2 Analog setpoint
3 Fixed frequency
4 USS on BOP link
5 USS on COM link
6 CB on COM link
Min. frequency
(enters the minimum motor frequency in Hz)
Sets minimum motor frequency at which motor will run irrespective of frequency
setpoint. The value set here is valid for both clockwise and anticlockwise rotation.
Max. frequency
(enters the maximum motor frequency in Hz)
Sets maximum motor frequency at which motor will run irrespective of the
frequency setpoint. The value set here is valid for both clockwise and
anticlockwise rotation.
Ramp-up time
(enters the ramp-up time in s)
Time taken for motor to accelerate from standstill up to maximum motor
frequency (P1082) when no rounding is used.
Ramp-down time
(enters the deceleration time in s)
Time taken for motor to decelerate from maximum motor frequency (P1082) down
to standstill when no rounding is used
OFF3 ramp-down time
(enters the fast stop ramp-down time in s)
Defines ramp-down time from maximum frequency to standstill for OFF3
command.
Control mode
(enters the required control mode)
0 V/f with linear characteristic
1 V/f with FCC
2 V/f with parabolic characteristic
3 V/f with programmable characteristic
End of quick commissioning
(start of the motor calculation)
0 No quick commissioning (no motor calculations)
1 Start quick commissioning with factory reset
2 Start quick commissioning
3 Start quick commissioning only for motor data
NOTE
For P3900 = 1,2,3 → P0340 is internally set to 1 and the appropriate data
calculated (refer to the parameter list P0340).
End of quick commissioning/ drive setting
If additional functions must be implemented at the drive inverter, please use the
instructions in Section 3.5.5 "Commissioning the application". We recommend this
procedure for drives with a high dynamic response..
2
2
0.00 Hz
50.00 Hz
10.00 s
10.00 s
5.00 s
0
0
MICROMASTER 420 Operating Instructions
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WARNING
The motor data identification routine (refer to Section 3.5.4) may not be used for
loads which are potentially hazardous (e.g. suspended loads for crane
applications). Before the motor data identification run is started, the potentially
hazardous load must be carefully secured (e.g. by lowering the load to the floor or
by clamping the load using the motor holding brake).
NOTE
The precise equivalent circuit diagram data are extremely important for the
voltage boost of the V/f characteristic. The equivalent diagram data can only be
estimated from the rating plate data. This is the reason that the equivalent
circuit diagram data are, either
- determined using the motor data identification routine (refer to Section 3.5.4),
or
- entered from the motor data sheet (refer to Section 3.5.3).
Parameter P0308 or P0309 are only visible using the BOP or AOP if P0003 ≥ 2.
Depending on the setting of parameter P0100, either P0308 or P0309 is
displayed.
The input value of P0307 and all other power data are either interpreted as kW
or hp value depending on P0100.
The possible rating plate / power plate data is shown in Fig. 3-17. The precise
definition and explanation of this data is defined in DIN EN 60 034-1.
Fig. 3-17 Example of a typical motor rating plate
In order to ensure a straightforward, successful commissioning, it is important that
the circuit connection in the motor terminal box (refer to Fig. 3-18) matches the
rated motor voltage entered in P0304 or the rated motor current P0305.
e.g.: Volts 230 V (Delta connection) / 400 V (Star connection)
NEMA Motor
Volts
low
high
UVW
T
1-T7T2-T8T3-T9
T1T2T
Connected
together
T
T
3
1-T7T2-T8T3-T9
4-T5-T6
e.g.: Volts 230 V YY (low) / 460 V Y (high)
Volts
low
high
UVW
T
1-T6-T7T2-T4-T8T3-T5-T9
T
T
1
T3T4-T7T5-T8T6-T
2
Fig. 3-18 Motor terminal box
Connection
Connected
together
-
Y Y
Y
Star connection
Connection
∆ ∆
∆
9
T
1
T
4
T
7
T
T
9
6
T
3
T
T
8
T
5
T
2
T
1
T
4
T
9
T
T
7
6
T
3
T5T
8
2
The following must be noted when entering the rating plate data or the ESB data:
The rated motor voltage P0304, the rated motor current P0305 and the stator
resistance P0350 must always be entered in accordance with the motor circuit
configuration (either delta or star).
If the rated motor data that is available (P0304, P0305, P0350) does not match
the motor circuit configuration, then the appropriate conversion (refer to Fig.
3-19) must be made and then entered.
NOTE
The outer conductor voltage/phase-to-phase voltage (voltage U12 between outer
conductors L1, L2) and the outer conductor current (phase current) I
are always
1
specified on the rating plate.
MICROMASTER 420 Operating Instructions
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.
Fig. 3-19 Star / delta circuit configurations
87 Hz characteristic
When a motor with a delta circuit configuration (e. g. V
frequency inverter, where the rated voltage corresponds to the star circuit
configuration (e.g. 400 V frequency inverter), then it is important to proceed as
follows and observe the following:
The motor must have the appropriate voltage strength.
Above the rated motor frequency, the iron losses in the motor increase over-
proportionally. This is the reason that above this frequency, the thermal motor
torque should be reduced.
For the quick commissioning, the rating plate data for the delta circuit
configuration should be entered or the rating plate must be appropriately
converted.
The drive inverter must be designed for the higher current (delta circuit
configuration).
The 87 Hz characteristic is independent of the control type.
When using the 87 Hz characteristic, the mechanical motor limits must be
taken into account (refer to Catalog M11).
For the 87 Hz characteristic, the ratio between the voltage and frequency (V/f
characteristic) remain constant. This is the reason that the following relationships
apply:
P0311 Rated motor speed 1350 RPM 2460 RPM 1350 RPM
P0314 Motor pole pairs 2 2 2
Cos
ϕ
configuration
0.75 0.75 0.75
87 Hz
characteristic
Star circuit
configuration
Contrary to the BOP, AOP operator panels or commissioning tool program
DriveMonitor, the STARTER commissioning (start-up) program offers a maskorientated quick commissioning, which is especially advantageous for users who
are using MICROMASTER for the first time. On the other hand, BOP, AOP and
DriveMonitor offer, in conjunction with the drive inverter, parameter-orientated
quick commissioning where the user is navigated through the menu tree mentioned
above.
NOTE
The MICROMASTER series of drive units is not available for 3-ph. 690 V AC.
MICROMASTER 420 Operating Instructions
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3.5.3 Calculating the motor / control data
Internal motor / control data is calculated using parameter P0340 or, indirectly
using parameter P3900 (refer to Section 3.5.2) or P1910 (refer to Section 3.5.4).
The functionality of parameter P0340 can, for example, if the motor weight or the
stator resistance is known. The following settings are possible for P0340:
0 No calculation
1 Complete parameterization
For the complete parameterization (P0340 = 1), in addition to the motor / control
parameters, parameters are also pre-assigned which refer to the motor rated data
(e.g. torque limits and reference quantities for interface signals).
Table 3-9 Parameter for motor/control data
P0340 = 1
P0344 Motor weight
P0346 Magnetization time
P0347 Demagnetization time
P0350 Stator resistance (line-to-line)
P0611 Motor I2t time constant
P1253 Vdc-controller output limitation
P1316 Boost end frequency
P2000 Reference frequency
P2002 Reference current
x
x
x
x
x
x
x
x
x
NOTE
When exiting the quick commissioning with P3900 > 0 (refer to Section 3.5.2),
internally P0340 is set to 1 (complete parameterization).
For the motor data identification (refer to Section 3.5.4), after the measurement
3.5.4 Motor data identification (stator resistance)
MICROMASTER has a measuring technique which is used to determine the stator
resistance:
We urgently recommend that the identification routine is carried-out for controlrelated reasons. For example, the stator resistance is extremely important for the
voltage boost for the V/f characteristic. The motor data identification routine should
be executed, especially if long feeder cables or if third-party motors are being used.
After selecting the motor data identification using parameter P1910, alarm A0541 is
immediately generated. The motor identification routine is started by the ON
command and different excitation signals are impressed in the motor (DC and AC
voltages). This measurement is carried-out with the motor at a standstill and it
takes, including the data calculation per selection (P1910 = 1) between 20 s ... 4
min. The identification time depends on the motor and increases with its size.
The motor data identification routine must be carried-out with the motor in the cold
condition so that the motor resistance values saved can be assigned to the
parameter of the ambient temperature. Only then is correct temperature adaptation
of the resistances possible during operation.
The motor data identification routine operates with the results of the "Complete
parameterization" P0340 = 1 or the motor equivalent diagram data which was last
saved. The results become increasingly better the more times that the identification
routine is executed (up to 3 times).
WARNING
It is not permissible to carry-out the motor identification routine for loads which
are potentially hazardous (e.g. suspended loads for crane applications). Before
starting the motor data identification routine, the potentially hazardous load
must be secured (e.g. by lowering the load to the floor or clamping the load
using the motor holding brake).
When starting the motor data identification routine, the rotor can move into a
preferred position. This is more significant for larger motors.
NOTE
It is not necessary to lock the motor rotor for the motor data identification
routine. However, if it is possible to lock the motor rotor during the identification
routine (e.g. by closing the motor holding brake), then this should be used to
determine the equivalent circuit diagram data.
The following formula can be applied to check the correctness of the motor
rating plate data:
P
V
I
= √3 ∗ V
N
with P
∗ I
N Υ
rated motor power
N
, V
N Υ
, I
N Υ
∗ cosϕ∗η≈√3 ∗ V
NΥ
rated motor voltage (star / delta)
N ∆
rated motor current (star / delta)
N ∆
N ∆
∗ I
∗ cosϕ ∗ η
N∆
cosϕpower factor
ηefficiency
MICROMASTER 420 Operating Instructions
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Motor data identification routine
START
Ambient Motor temp.
Motortemp. - P0625
≤ 5 °C
@€ ± 5 °C ?
?
yesno
Allow the motor
to cool down
P1910 = 1
Factory setting: Bold
Ambient motor temperature
The motor ambient temperature is entered at the instant that motor data is
being determined (factory setting:
The difference between the motor temperature and the motor ambient
temperature must lie in the tolerance range of approx. ± 5 °C. If this is not
the case, then the motor data identification routine can only be carried-out
after the motor has cooled down.
(entered in °C)
20 °C).
Select motor data identification
0 Disabled
1 Identification of all parameters with parameter change
NOTE:
For P1910 = 1 → P0340 is internally set to P0340 = 1 and the
appropriate data calculated (refer to parameter list P0340)
ON
A0541
Power-up the motor
The ON command initiates the measuring operation. In so doing the motor aligns
itself and conducts current. Alarm message A0541 (motor data identification
routine active) is output.
After the motor data identification routine has been completed:
After the motor – drive inverter combination was commissioned using the quick or
series commissioning, in the following step parameters should be adapted and set
according to the technological requirements. As an example, the following points
should be considered:
Functional requirements of the drive inverter (e.g. process control with PID
If the application includes a function, which is not covered by the quick or series
commissioning, then the following sections of the function description or the
parameter list should be considered.
Adapting the drive inverter to the application
The parameters designated with * offer more setting possibilities than are listed
here. Refer to the parameter list for additional setting possibilities.
START
P0003 = 3
Factory settin
User access level *
1 Standard (Allows access into most frequently used parameters)
2 Extended (Allows extended access e.g. to inverter I/O functions)
3 Expert (for expert use only)
3.5.5.1 Serial Interface (USS)
P2010 =...
P2011 =...
P2012 =...
P2013 =...
USS baud rate
Sets baud rate for USS communication.
USS address
Sets unique address for inverter.
USS PZD length
Defines the number of 16-bit words in PZD part of USS telegram.
USS PKW length
Defines the number of 16-bit words in PKW part of USS telegram.
6
Possible
Settings:
3 1200 baud
0
4 2400 baud
5 4800 baud
6 9600 baud
2
7 19200 baud
8 38400 baud
9 57600 baud
127
1
MICROMASTER 420 Operating Instructions
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3.5.5.2 Selection of command source
P0700 =...
Selection of
command source
Selects digital command source.
0 Factory fault setting
1 BOP (keypad)
2 Terminal
4 USS on BOP link
5 USS on COM link
6 CB on COM link
3.5.5.3 Digital input (DIN)
P0701=...
P0702 =...
P0703 =...
P0704 = 0
P0724 =...
Function of digital input 1
Terminal 5
1 ON / OFF1
Function digital input 2
Terminal 6
12 Reverse
Function digital input 3
Terminal 7
9 Fault acknowledge
Function digital input 4
Via analog input
Terminals 3, 4
0 Digital input disabled
Debounce time for
digital inputs
Defines debounce time (filtering
time) used for digital inputs.
0 No debounce time
1 2.5 ms debounce time
2 8.2 ms debounce time
3 12.3 ms debounce time
2
1
BOP
Terminals
USS
BOP link
USS
COM link
CB
COM link
Possible Settings:
P0700 = 2
Sequence control
Setpoint
channel
0 Digital input disabled
1 ON / OFF1
2 ON + Reverse / OFF1
Saves last motor potentiometer setpoint (MOP) that was active before OFF command or
power down.
0 MOP setpoint will not be stored
1 MOP setpoint will be stored (P1040 is updated)
Inhibit negative MOP setpoints
0 Neg. MOP setpoint is allowed
1 Neg. MOP setpoint inhibited
Setpoint of the MOP
Determines setpoint for motor potentiometer control.
MOP ramp-up and ramp-down times are defined by the parameters P1120 and P1121.
Possible parameter settings for the selection of MOP:
DIN
BOP
USS on
BOP link
USS on
COM link
CB
Selection
P0719 = 0, P0700 = 2, P1000 = 1
P0719 = 1, P0700 = 2
P0719 = 0, P0700 = 1, P1000 = 1
P0719 = 0, P0700 = 4, P1000 = 1
P0719 = 0, P0700 = 5, P1000 = 1
P0719 = 0, P0700 = 6, P1000 = 1
or
or
P0719 = 11
or
P0719 = 41
or
P0719 = 51
or
P0719 = 61
MOP up
P0702 = 13
(DIN2)
UP button
USS control word
r2032 Bit13
USS control word
r2036 Bit13
CB control word
r2090 Bit13r2090 Bit14
MOP down
P0703 = 14
(DIN3)
DOWN button
USS control word
r2032 Bit14
USS control word
r2036 Bit14
CB control word
0
1
5.00 Hz
3.5.5.9 Fixed frequency (FF)
P1001 =...
P1002 =...
P1003 =...
P1004 =...
P1005 =...
P1006 =...
P1007 =...
Fixed frequency 1
Can be directly selected via DIN1
Fixed frequency 2
Can be directly selected via DIN2
(P0702 = 15, 16)
Fixed frequency 3
Can be directly selected via DIN3
(P0703 = 15, 16)
Fixed frequency 4
Fixed frequency 5
Fixed frequency 6
Fixed frequency 7
0.00 Hz
5.00 Hz
10.00 Hz
15.00 Hz
20.00 Hz
25.00 Hz
30.00 Hz
When defining the function of the digital inputs
(P0701 to P0703), three different types can be
selected for fixed frequencies:
15 = Direct selection (binary-coded)
In this particular mode, the appropriate
digital input always selects the associated
fixed frequency, e.g.:
Digital input 3 = selects fixed frequency 3.
If several inputs are simultaneously active,
then these are summed. An ON command is
additionally required.
16 = Direct selection + ON command
(binary-coded + On / Off1)
In this mode, the fixed frequencies are
selected as for 15, however these are
combined with an ON command.
17 = Binary coded selection + ON command
(BCD-coded + On/ Off1)
The BCD-coded operating mode is effective
for digital inputs 1 to 3.
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P1016 =...
Fixed frequency code –
Bit 0
Defines the selection method for fixed
frequencies.
P1017 =...
P1018 =...
Fixed frequency code –
Bit 1
Fixed frequency code –
Bit 2
3.5.5.10 JOG
P1058 =...
P1059 =...
P1060 =...
P1061 =...
JOG frequency right
Frequency in Hz when the motor is being
jogged in the clockwise direction of rotation.
JOG frequency left
Frequency in Hz when the motor is being
jogged in the counter-clockwise direction of
rotation.
JOG ramp-up time
Ramp-up time in s from 0 to the maximum
frequency (P1082). The JOG ramp-up is
limited by P1058 or P1059.
JOG ramp-down time
Ramp-down time in s from the maximum
frequency (P1082) to 0.
1
1 Direct selection
2 Direct selection + ON command
3 Binary coded selection + ON command
NOTE
1
For settings 2 and 3, all parameters P1016 to
P1019 must be set to the selected value so that
the drive inverter accepts the ON command.
1
5.00 Hz
JOG
5.00 Hz
10.00 s
10.00 s
P1082
(f
max
P1058
f
)
t
P1060P1061
3.5.5.11 Ramp-function generator (HLG)
P1091 =...
P1091 =...
P1091 =...
P1091 =...
P1101 =...
P1120 =...
P1121 =...
Skip frequency 1 (entered in Hz)
Defines skip frequency 1 which avoids
effects of mechanical resonance and
suppresses frequencies within +/- P1101
(skip frequency bandwidth).
Defines ramp-down time from maximum frequency to standstill for OFF3 command.
0.00 s
0.00 s
0.00 s
0.00 s
3.5.5.12 Reference/limit frequencies
P1080 =...
P1082 =...
P2000 =...
Min. frequency (entered in Hz)
Sets minimum motor frequency [Hz] at which motor will run irrespective of frequency
setpoint. If the setpoint falls below the value of P1080, then the output frequency is set to
P1080 taking into account the sign.
Max. frequency (entered in Hz)
Sets maximum motor frequency [Hz] at which motor will run irrespective of the frequency
setpoint. If the setpoint exceeds the value P1082, then the output frequency is limited. The
value set here is valid for both clockwise and anticlockwise rotation.
Reference frequency (entered in Hz)
The reference frequency in Hertz corresponds to a value of 100 %. This setting should be
changed if a maximum frequency of higher than 50 Hz is required. It is automatically
changed to 60 Hz if the standard 60 Hz frequency was selected using the DIP50/60 switch
or P0100.
NOTE
This reference frequency effects the setpoint frequency as both the analog setpoints
(100 %
value.
P2000) as well as the frequency setpoints via USS (4000H P2000) refer to this
The rounding times are recommended as
abrupt responses can be avoided therefore
reducing stress and damage to the mechanical
system.
The ramp-up and ramp-down times are
extended by the component of the rounding
ramps.
0
5.00 s
0.00 Hz
50.00 Hz
50.00 Hz
3.5.5.13 Motor control
P1300 =...
P1310 =...
MICROMASTER 420 Operating Instructions
Control mode
The control type is selected using this parameter. For the "V/f characteristic" control type,
the ratio between the frequency inverter output voltage and the frequency inverter output
frequency is defined.
0 V/f with linear
1 V/f with FCC
2 V/f with parabolic characteristic
3 V/f with programmable characteristic (
Continuous boost (entered in %)
Voltage boost as a % relative to P0305 (rated motor current) and P0350 (stator resistance).
P1310 is valid for all V/f versions (refer to P1300). At low output frequencies, the effective
resistance values of the winding can no longer be neglected in order to maintain the motor
flux.
→ P1320 – P1325)
78 6SE6400-5AA00-0BP0
0
50.00 %
Issue 07/04 3 Functions
P1311 =...
P1312 =...
P1320 =...
P1321 =...
P1322 =...
P1323 =...
P1324 =...
P1325 =...
P1335 =...
P1338 =...
V
Linear V/f
Boost voltage
Vmax
Vn
(P0304)
V
ConBoost,100
V
ConBoost,50
0
actual V
f
Boost,end
(P1316)
Boost
t
u
p
t
u
O
f
/
V
l
a
=
m
r
0
o
0
3
N
1
P
(
Acceleration boost (entered in %)
o
v
)
0
e
g
a
t
l
fn
(P0310)
P1310 active
f max
(P1082)
ON
OFF
f
Validity range
t
f
t
1
t0
0.0 %
Voltage boost for accelerating/braking as a % relative to P0305 and P0350. P1311 only
results in a voltage boost when ramping-up/ramp-down and generates an additional torque
for accelerating/braking. Contrary to parameter P1312, that is only active for the 1
st
acceleration operation after the ON command, P1311 is effective each time that the drive
accelerates or brakes.
Starting boost (entered in %)
0.0 %
Voltage boost when starting (after an ON command) when using the linear or square-law
V/f characteristic as a % relative to P0305 (rated motor current) or P0350 (stator
resistance). The voltage boost remains active until
1) the setpoint is reached for the first time and
2) the setpoint is reduced to a value that is less than the instantaneous ramp-function
generator output.
Programmable V/f freq.
coord. 1
Sets V/f coordinates
(P1320/1321 to P1324/1325) to
define V/f characteristic.
Programmable. V/f volt.
coord. 1
Programmable V/f freq.
coord. 2
Programmable V/f volt.
coord. 2
Programmable U/f Freq.
coord. 3
Programmable V/f volt.
coord. 3
Slip compensation (entered in %)
Dynamically adjusts output frequency of inverter so that motor speed is kept constant
independent of motor load.
Selects reaction of inverter to an internal over-temperature.
0 Reduce output frequency
1 Trip (F0004)
2 Reduce pulse frequency and output frequency
3 Reduce pulse frequency then trip (F0004)
Inverter temperature warning
15 °C
Defines the temperature difference (in ºC) between the Overtemperature trip threshold and
the warning threshold of the inverter. The trip threshold is stored internally by the inverter
and cannot be changed by the user.
Motor cooling (enters the motor cooling system)
0
0 Self-cooled: Using shaft mounted fan attached to motor
1 Force-cooled: Using separately powered cooling fan
Motor I2t reaction
2
Defines reaction when motor I2t reaches warning threshold.
0 Warning, no reaction, no trip
1 Warning, I
reduction, trip F0011
max
2 Warning, no reaction, trip (F0011)
Motor I2t time constant (entered in s)
100 s
The time until the thermal limit of a motor is reached, is calculated via the thermal time
constant. A higher value increases the time at which the motor thermal limit is reached. The
value of P0611 is estimated according to the motor data during quick commissioning or is
calculated using P0340 (Calculating of the motor parameters). When the calculation of
motor parameters during quick commission is complete the stored value can be replaced by
the value given by the motor manufacturer
Motor I2t warning level (entered in %)
100.0 %
Defines the value at which alarm A0511 (motor overtemperature) is generated.
r0021
r0027
Trip threshold
P0611
2
P0305
P0310
P0335
r0034
2
(
) t
i
t
reaction
Warning threshold
Motor
i2t
temp.
P0610
P0614
P0614 1.1⋅
F0011
I_max reduction
A0511
P0640 =...
Motor overload factor [%]
Defines motor overload current limit in [%] relative to P0305 (rated motor current). Limited
to maximum inverter current or to 400 % of rated motor current (P0305), whichever is the
lower.
150.0 %
MICROMASTER 420 Operating Instructions
80 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
3.5.5.15 Inverter-specific Functions
Flying start
P1200 =...
P1202 =...
P1203 =...
Flying start
Starts inverter onto a spinning motor by rapidly changing the output frequency of the
inverter until the actual motor speed has been found.
0 Flying start disabled
1 Flying start is always active, start in direction of setpoint
2 Flying start is active if power on, fault, OFF2, start in direction of setpoint
3 Flying start is active if fault, OFF2, start in direction of setpoint
4 Flying start is always active, only in direction of setpoint
5 Flying start is active if power on, fault, OFF2, only in direction of setpoint
6 Flying start is active if fault, OFF2, only in direction of setpoint
Motor-current: Flying start (entered in %)
Defines search current used for flying start.
Search rate: Flying start (entered in %)
Sets factor by which the output frequency changes during flying start to synchronize with
turning motor.
0
100 %
100 %
Automatic restart
P1210 =...
Automatic restart
Configures automatic restart function.
0 Disabled
1 Trip reset after power on
2 Restart after mains blackout
3 Restart after mains brownout or fault
4 Restart after mains brownout
5 Restart after mains blackout and fault
6 Restart after mains brown/blackout or fault
0
Holding brake
P1215 =...
P1216 =...
P1217 =...
Holding brake enable
Enables/disables holding brake
function (MHB).
0 Motor holding brake disabled
1 Motor holding brake enabled
NOTE
The following must apply when
controlling the brake relay via a
digital output: P0731 = 14 (refer to
Section 3.5.5.4 "Digital ").
Holding brake release delay (entered in s)
Defines the time interval during which the frequency inverter runs with the min. frequency
P1080 after magnetizing, before the ramp-up starts.
Holding time after ramp-down (entered in s)
Defines time for which inverter runs at minimum frequency (P1080) after ramping down.
Defines level of DC current in [%] relative to rated motor current (P0305).
Duration of DC braking (entered in s)
Defines duration for which DC injection braking is to be active following an OFF1 or OFF3
command.
100 %
0 s
Compound braking
P1236 =...
Compound braking current (entered in %)
Defines DC level superimposed on AC waveform after exceeding DC-link voltage threshold
of compound braking. The value is entered in [%] relative to rated motor current (P0305).
(see also 0).
Enables/disables auto-detection of switch-on
levels for Vdc control functionalities.
0 Disabled
1 Enabled
V
r0056 Bit14
r1242
-controller active
DC_max
V
f
DC
t
1
0
A0911
t
PID controller
P2200 =...
P2253 =...
P2254 =...
P2257 =...
P2258 =...
P2264 =...
BI: Enable PID controller
PID mode Allows user to enable/disable the PID controller. Setting to 1 enables the PID
controller. Setting 1 automatically disables normal ramp times set in P1120 and P1121 and
CI: PID setpoint
CI: PID trim source
Selects trim source for PID setpoint. This signal is multiplied by the trim gain and added to
Ramp-up time for PID setpoint
Ramp-down time for PID setpoint
CI: PID feedback
Selects the source of the PID feedback signal.
f
act
f
set
t
0.0
0.0
0.0
1.00 s
-
1.00 s
-
755.0
MICROMASTER 420 Operating Instructions
82 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
P2267 =...
P2268 =...
P2280 =...
P2285 =...
P2291 =...
P2292 =...
Example:
Max. value for PID feedback
Min. value for PID feedback
PID proportional gain
PID integral time
PID output upper limit
PID output lower limit
PID
MOP
ADC
PID
FF
USS
BOP link
USS
COM link
CB
COM link
P2254
P2253
P2264
P2200
PID
SUM
PID
PT1
P2265
P2257
PID
RFG
P2267
P2268
P2258
P2261
PID
PT1
P2269
PID
SCL
P2271
P2270
−
r2273
∆
PID
P2280
PID
P2285
P2291
P2292
PID
r2294
Output
0
1
100.00 %
0.00 %
3.000
0.000 s
100.00 %
0.00 %
Motor
control
Parameter Parameter text Example
P2200 BI: Enable PID controller P2200 = 1.0 PID controller active
P2253 CI: PID setpoint P2253 = 2224 PID-FF1
P2264 CI: PID feedback P2264 = 755 ADC
P2267 Max. PID feedback P2267 Adapt to the application
P2268 Min. PID feedback P2268 Adapt to the application
P2280 PID proportional gain P2280 Determined by optimizing
P2285 PID integral time P2285 Determined by optimizing
P2291 PID output upper limit P2291 Adapt to the application
P2292 PID output lower limit P2292 Adapt to the application
NOTE
If P0971 is used to start data save from the RAM to EEPROM, then after the data
has been transferred, the communications memory is re-initialized. This means that
communications via USS as well as also via the CB board are interrupted for the
time it takes to reset:
The connected PLC (e.g. SIMATIC S7) goes into stop
The STARTER start-up program buffers the communications failure
For the DriveMonitor start-up program, "NC" (not connected) or "drive busy" is
displayed.
The "busy" text is displayed at the BOP operator panel
After reset has been completed, for the start-up programs STARTER and
DriveMonitor and the BOP operator panel, communications are automatically reestablished.
The parameter set can be read-out (upread) from the drive converter via the serial
interface and saved on the hard disk / floppy disk or in a non-volatile memory (e.g.
EEPROM) using the following
PC Tools (e.g. STARTER, DriveMonitor) or the
Operator panel AOP
(please refer to Fig. 3-21).
The interfaces of the drive inverter with USS protocol and the fieldbus interfaces
(e.g. PROFIBUS) which can be used to transfer parameters, can be used as serial
interface.
AOP
3)*
1)
DriveMonitor
2)*
4)*
STARTER
2)*
USS on BOP link
(RS232)
USS on COM link
(RS485)
CB on COM link
(PROFIBUS)
CB
MM4
4)*
5)*
Parameter transmission from different
sources via download
* Option is absolutely required for the
connection
1) Option: Operator panel door mounting kit
for single inverter control
2) Option: PC to inverter connection kit
3) Option: AOP door mounting kit
for multiple inverter control (USS)
4) Option: RS232-RS485 Converter
5) With PROFIBUS:
SIMATIC NET
With CANopen or DeviceNet:
see user organisation
Fig. 3-21 Upread / download using AOP and PC Tools
If there is already an appropriate parameter set for the drive, which, for example,
was created by either upreading or by programming offline, then this can be
downloaded into the drive inverter. This means that it is possible to transfer the
parameter set from drive inverter A to drive inverter B which, for identical
applications (e.g. series machines, group drives) allows data to be copied and
therefore in turn fast commissioning.
MICROMASTER 420 Operating Instructions
84 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
WARNING
For series commissioning, all of the communication interfaces as well as also
the digital and analog interfaces are re-initialized. This results in a brief
communications failure or causes the digital output to switch.
Potentially hazardous loads must be carefully secured before starting a series
commissioning.
Potentially hazardous loads can be secured as follows before starting series
commissioning:
♦ Lower the load to the floor, or
♦ Clamp the load using the motor holding brake
(Caution: During series commissioning, MICROMASTER must be prevented
from controlling the motor holding brake).
If the motor holding brake (refer to Section 3.13) is controlled by the
MICROMASTER, then series commissioning may not
be carried-out for
potentially hazardous loads (e.g. suspended loads for crane applications).
The factory setting is a defined initial state of all of the drive inverter parameters.
The drive inverters are shipped from the factory in this state. The drive inverters
have the following default settings:
Control via the digital inputs
a) ON/OFF via DIN1
b) Direction of rotation reversal via DIN2
c) Fault acknowledgement via DIN3
Setpoint input via analog input
Signal output via the digital output
a) Fault active via DOUT 1
Actual frequency via the analog output
The basic V/f characteristic is the control mode (P1300 = 0)
Induction motor (P0300 = 1)
When appropriately connected-up and with the appropriate motor – drive inverter
combination, MICROMASTER drive inverters are ready to run when shipped from
the factory without requiring any additional parameterization.
You can re-establish the initial state at any time by carrying-out a parameter reset
to the factory setting. This undoes all of the parameter changes which were made
since the drive inverter was supplied. This value is designated as "Def" in the
parameter list.
Reset to the factory setting
START
P0010=30
P0970 = 1
END
Commissioning parameter
30 Factory setting
Factory reset
0 disabled
1 Parameter reset
The drive inverter carries-out a parameter reset (duration, approx. 10 s) and then
automatically exits the reset menu and sets:
P0970 = 0 : disabled
P0010 = 0 : ready
NOTE
When resetting the parameters to the factory setting, the communications memory
is re-initialized. This means that communications via USS as well as also via the
CB board are interrupted for the time it takes to make the reset:
The connected PLC (e.g. SIMATIC S7) goes into stop
The STARTER start-up program buffers the communications failure
For the DriveMonitor start-up program, "NC" (not connected) or "drive busy" is
displayed.
The "busy" text is displayed at the BOP operator panel
0
0
After reset has been completed, for the start-up programs STARTER and
DriveMonitor or the BOP operator panel, communications are automatically reestablished.
External control signals are required for a drive converter to be able to operate
autonomously. These signals can be entered via a serial interface as well as also
via digital inputs (refer to Fig. 3-22). MICROMASTER has 3 digital inputs which can
be expanded to a total of 4 by using the 2 analog inputs. The digital inputs, as far
as their assignment, can be freely programmed to create a function. Whereby,
regarding the program, it is possible to directly assign the function via parameters
P0701 - P0704 or to freely program the function using BICO technology.
Parameter P0725 is used to define as to whether digital inputs DIN1 – DIN3 are
logical "1" when appropriately connected to 0 V or 24 V. The logical states of the
digital inputs can be de-bounced using P0724 and read-out using parameter r0722
(BICO monitoring parameter). Further, this parameter is used to parameterize
BICO for the digital inputs (refer to BICO parameterization in the following Section).
The possible settings of the individual inputs are listed in Table 3-10.
Table 3-10 Parameters P0701 – P0706
Parameter value Significance
0 Digital input disabled
1 ON / OFF1
2 ON+reverse / OFF1
3 OFF2 – coast to standstill
4 OFF3 – quick ramp-down
9 Fault acknowledge
10 JOG right
11 JOG left
12 Reverse
13 MOP up (increase frequency)
14 MOP down (decrease frequency)
15 Fixed setpoint (direct selection)
16 Fixed setpoint (direct selection + ON)
17 Fixed setpoint (binary-coded selection + ON)
25 Enable DC braking
29 External trip
33 Disable additional frequency setpoint
99 Enable BICO parameterization
Example:
An ON/OFF1 command should be realized using digital input DIN1.
P0700 = 2 Control enabled via terminal strip (digital inputs)
P0701 = 1 ON/OFF1 via digital input 1 (DIN1)
MICROMASTER 420 Operating Instructions
88 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
BICO parameterization
If the setting 99 (BICO) is entered into parameters P0701 – P0704, then the BICO
wiring is enabled for the appropriate digital input. The output parameter number of
the function (parameter, included in the parameter text BO) should be entered into
the command source (parameter which contains the code BI in the parameter text).
Example:
An ON/OFF1 command should be realized using digital input DIN1.
P0700 = 2 Control enabled via digital inputs
P0701 = 99 BICO enabled for DIN1
P0840 = 722.0 ON/OFF1 via DIN1
NOTE
Only experienced users should use the BICO parameterization and for applications
where the possibilities provided by P0701 – P0704 are no longer adequate.
Binary states in the drive can be output via the digital output. As result of the fast
cycle time, it is possible to control external devices and to display the state in real
time. In order that higher powers can also be output, the internal signal (TTL level)
is amplified using a relay (refer to Fig. 3-23).
Relay:
- max. opening / closing time: 5 / 10 ms
- voltage / current 30 V DC / 5 A
250 V AC / 2 A
Invert DOUTs
BI: Fct. of DOUT 2
P0732.C
(52:7)
0 ... 7
P0748 (0)
0
-1
2
CO/BO: State DOUTs
r0747
.1
r0747
COM
NO
Kl.11
Kl.10
Fig. 3-23 Digital output
The states, which are to be output, are defined using the "BI" parameter P0731
(digital output). For the definition, the "BO" parameter number or "CO/BO"
parameter number and the bit number of the particular state should be entered into
P0731. Frequently used states including the parameter number and bit are shown
in the following Table (refer to Table 3-11).
MICROMASTER 420 Operating Instructions
90 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
Table 3-11 Parameter P0731 (frequently used functions / states)
Parameter value Significance
52.0 Drive ready
52.1 Drive ready to run
52.2 Drive running
52.3 Drive fault active
52.4 OFF2 active
52.5 OFF3 active
52.6 Switch-on inhibit active
52.7 Drive warning active
52.8 Deviation, setpoint / actual value
52.9 PZD control (Process Data Control)
52.A Maximum frequency reached
52.B Warning: Motor current limit
52.C Motor holding brake (MHB) active
52.D Motor overload
52.E Motor running direction right
52.F Inverter overload
53.0 DC brake active
53.1 Act. frequency f_act >= P2167 (f_off)
53.2 Act. frequency f_act > P1080 (f_min)
53.3 Act. current r0027 >= P2170
53.6 Act. frequency f_act >= setpoint
NOTE
A complete list of all of the binary status parameters (refer to "CO/BO" parameters)
can be taken from the parameter list.
Analog setpoints, actual values and control signals are read-into the drive inverter
using the appropriate analog input and are converted into digital signals / values
using the ADC converter.
The analog input represents a voltage input that can be additionally configured via
parameter P0756.
Depending on the source, the appropriate connection must be made. Using, as an
example, the internal 10 V voltage source, a connection is shown as an example in
the following diagram (refer to Fig. 3-24).
Voltage input
KL1 10 V
KL2 0 V
> 4.7 kΩ
KL3 ADC+
KL4 ADC−
A
D
Fig. 3-24 Connection example for ADC voltage input
The ADC channel has several function units (filter, scaling, dead zone) (refer to
Fig. 3-25).
ADC channel
KL
KL
ADC+
ADC−
A
P0756
ADC
D
type
1
0
P0753
1.7 V
3.9 V
P0757
P0758
P0759
P0760
ADC
scaling
P0756 P0761
Wire
breakage
sensing
P0704
P0761
ADC
dead
zone
r0754
r0722
r0722.3
P1000
Setpoint
r0755Pxxxx
r0752
F0080
r0751
Pxxxx
Function
Fig. 3-25 ADC channel
MICROMASTER 420 Operating Instructions
92 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
NOTE
When the filter time constant P0753 (ADC-PT1) is increased, this smoothes the
ADC input signal therefore reducing the ripple. When this function is used within a
control loop, this smoothing has a negative impact on the control behavior and
immunity to noise (the dynamic performance deteriorates).
Wire breakage monitoring
The wire breakage monitoring (refer to Fig. 3-25) is set using parameters P0756
and P0761. If the input signal of the analog input falls below the wire breakage
threshold (0.5 * P0761), then after the time in P0762 expires, fault F0080 is output
and the status bit is set in parameter r0751.
Analog input
Signal loss
Act. ADC after scaling
r0755
Fig. 3-26 Wire breakage monitoring
P0761
P0761 0,5 ⋅
r0751
10
V
1
1
P0762
F0080
Fault acknowl.
The following secondary conditions/limitations apply to the wire breakage
monitoring:
The monitoring function must be activated using parameter P0756
Width of the ADC dead zone P0761 > 0
Wire breakage monitoring if the ADC input quantity ≤ 0.5
P0761
*
t0
t0
t0
t0
Note
The wire-breakage monitoring function is only possible for unipolar analog
inputs.
Input range 0 to 0.5
P0761 of the analog input must be excluded when
*
activating the wire breakage monitoring for normal operation.
Setpoints, actual values and control signals inside the drive inverter are read-out
via the D/A converter using these analog input. The digital signal is converted into
an analog signal. All of the signals can be output via the D/A which contain the
"CO" abbreviation in the parameter text (refer to list of all of the BICO parameters
in the parameter list). Parameter P0771 defines, by assigning the parameter
number, the quantity which is output as analog signal through the DAC channel
(refer to Fig. 3-27). The smoothed output frequency is output, e.g. via the analog
output, if P0771 = 21.
r0020 CO: Freq. setpoint before RFG
r0021 CO: Act. filtered frequency
r0024 CO: Act. filtered output freq.
r0025 CO: Act. filtered output voltage
r0026 CO: Act. filtered DC-link volt.
r0027 CO: Act. filtered output current
...
r0052 CO/BO: Act. status word 1
r0053 CO/BO: Act. status word 2
r0054 CO/BO: Act. control word 1
...
Function
r0755
rxxxx
Pxxxx
P0771
D/A conv.
channel
D
A
D/A conv.+
D/A conv.−
KL
KL
0 ... 20 mA
Fig. 3-27 Signal output through the DAC channel
In order to adapt the signal, the DAC channel has several function units (filter,
scaling, dead zone) which can be used to modify the digital signal before
conversion (refer to Fig. 3-28).
r0774
P0780
P0781P0773
DAC
dead zone
D
A
DAC+
DAC
KL
KL
−
Function
r0755PxxxxrxxxxP0771
P0777
P0778
DAC
scaling
P0779
Fig. 3-28 DAC channel
NOTE
The analog output only provides the current output (0 ... 20 mA). A 0 ... 10 V
voltage signal can be generated by connecting a 500 Ohm resistor across the
output.
0 ... 20 mA
MICROMASTER 420 Operating Instructions
94 6SE6400-5AA00-0BP0
Issue 07/04 3 Functions
3.7 Communications
Parameter range: P2009 – r2091
Function chart number:
CB at COM link FP2700, FP2710
USS at COM link FP2600, FP2610
USS at BOP link FP2500, FP2510
MICROMASTER 420 has 2 serial communication interfaces which can be
simultaneously used. These interfaces are designated as follows in the following
text:
BOP link
COM link
Different units, such as the BOP and AOP operator panels, PCs with the start-up
software DriveMonitor and STARTER, interface modules for PROFIBUS DP,
DeviceNet and CAN as well as programmable controls with communication
processors can be connected at this interface (refer to Fig. 3-21).
BOP
DriveMonitor/
STARTER
BOPUSS
1)1)
RS232
2)*
BOP link
AOP
USS
RS232
PROFIBUS
COM link
board
DeviceNet
board
CBCB
CB
CAN
board
AOP
3)*
USS
RS485
14
DriveMonitor/
STARTER
USS
RS485
4)*
15
1) Option: BOP/AOP door mounting kit
for single inverter control
1) Option: Operator panel door mounting kit
for single inverter control
2) Option: PC to inverter connection kit
3) Option: AOP door mounting kit
for multiple inverter control (USS)
4) Option: RS232-RS485 Converter
Fig. 3-29 Serial communication interfaces - BOP link and COM link
The BOP, a programming / operator unit (e.g. AOP, PC with DriveMonitor /
STARTER) or a programmable control with communications processor can be
connected via this BOP link. Data transfer between MICROMASTER and the
programming / operator units is realized using the USS protocol via the RS232
interface (point-to-point data coupling). Communications between the BOP and
MICROMASTER uses an optimized interface which takes into consideration the
somewhat limited resources of the BOP. If the BOP is replaced by an USS unit
(PC, AOP), then MICROMASTER automatically identifies the interface of the new
unit. This is also true for the inverse replacement sequence. The BOP link interface
can be adapted to the particular unit using the following parameters (refer to Table
3-12).
Communication modules (CB) such as PROFIBUS, DeviceNet, CANopen and also
programming / operator units (e.g. PCs with the DriveMonitor / STARTER start-up
software and AOP) as well as programmable controls with communication
processor can be connected to the COM link. The plug connector allows the
communication modules to be connected to MICROMASTER. On the other hand,
the programming / operator units must be connected to the MICROMASTER
through terminals 14/15. As for the BOP link, data is transferred between
MICROMASTER and the programming / operator unit using the USS protocol. In
so doing, for the COM link, the USS protocol is transferred via the bus-capable
RS485 interface. Essentially the same as the BOP link, the COM link also
automatically defines if a communications module is replaced with a USS unit (PC,
AOP). The COM link can be adapted to the particular unit using the following
parameters (refer to Table 3-13).
A communications (CB) module as well as a programming / operator unit can
be simultaneously connected to the COM link interface via terminals 14/15
(USS). This is the reason that the communications module has priority over
USS. In this case, the USS node (USS station) via the COM link is de-activated.
USS at the COM link (RS485)
Contrary to PROFIBUS, the RS485 port (terminals 14/15) is not optically
isolated (not floating). When installing the system, it must be ensured that EMC
faults do not result in communication failures or damage to the RS485 drivers.
The following measures should be taken as a minimum:
1) Expose the motor shield and correctly connect the shield at both ends of the
cable. If at all possible, avoid interrupting the cable. However, if this cannot
be avoided, then it is crucial that the shield at the connection locations is
continued in compliance with EMC rules.
2) All node points should be well-grounded (EMC ground).
3) Interference suppression elements should be connected to all relay coils.
4) The cables, as far as possible, should be routed separately from other
cables. Especially RS485 cables should be kept away from motor cables.
5) The shields of RS485 cables must be correctly grounded.
If the AOP communicates using the USS protocol, then contrary to the BOP, the
appropriate USS parameters must be set (Table 3-12 and Table 3-13).
In order to ensure error-free communications, the appropriate communication
parameters must be set and harmonized with one another – both in the drive
converter as well as in the connected drive unit or in the connected option
module. In this case, the relevant operating instructions should be used for the
AOP and for the communication modules.
Using MICROMASTER with RS485 communication requires a proper termination
both ends of the bus (between P+ and N-), and correct pull up/ pull down
at
resistors at least one end of the bus (e.g. from P+ to P10, and N- to 0 V). (refer to
Fig. 3-30)
Fig. 3-30 RS485 Terminator
When the MICROMASTER drive inverter is the last slave on the bus (refer to Fig.
3-31), and there are no other pull up/pull down resistors on the bus, the supplied
terminator must be connected shown in Fig. 3-30).
Last Slave
Master
e.g. PLC
First Slave
RS485 Bus
RS485 Terminator
Fig. 3-31 USS bus configuration
RS485
Terminator
When the MICROMASTER is the first slave on the bus (refer to Fig. 3-31) the
RS485 Terminator may be used to terminate the bus by using P+ and N- only, for
the bus is powered by the last drive as explained.
NOTE
The supply for the pull up/ pull down resistors must be available whenever RS485
communication is in progress!
A setpoint can be entered via the analog input, the serial communication
interfaces, the JOG function, the motorized potentiometer as well as also using
fixed frequencies. The fixed frequencies are defined using parameters P1001 –
P1007 and selected via binector inputs P1020 – P1022. The effective fixed
frequency setpoint is available via connector output r1024 which means that it can
be connected further. If this is to be used as setpoint source, then either parameter
P1000 or P0719 should be modified or BICO parameter r1024 should be
connected to the main setpoint P1070 or supplementary setpoint P1075. Contrary
to parameter P0719, when parameter P1000 is modified, this implicitly changes
BICO parameters P1070, P1075.
Example: Fixed frequencies as setpoint source
a) Standard method
b) BICO method
3 methods are available when selecting the fixed frequencies.
→ P1000 = 3
→ P1070 = 1024, P1075 = 0
Direct selection
In this particular mode, the control signal directly selects the fixed frequency. This
control signal is entered via the binector inputs. If several fixed frequencies are
simultaneously active, then the selected frequencies are added
Table 3-14 Example for direct coding via digital inputs
The fixed frequencies can be selected via the digital inputs as well as also via
serial communication interfaces. The fixed frequency is selected, when using digital
inputs, using 2 techniques. This will be shown in the following example using the
fixed frequency P1001 and digital input 1 (refer to Fig. 3-32).
Fig. 3-32 Example for directly selecting FF1 via DIN1 and FF2 via DIN2
Direct selection + ON command
When this fixed frequency is selected, the fixed frequencies are also directly
selected whereby the selection is combined with the ON command. When this
technique is used, a separate ON command is not required. The following is
obtained essentially analog to the example shown above: