Moeller DF51 User manual

Frequency Inverter DF51
Kurzanleitung
Moeller GmbH
Industrieautomation
Hein-Moeller-Straße 7–11
D-53115 Bonn
E-Mail: [e-mail]
Internet: www.moeller.net
© 2005 by Moeller GmbH
Subject to alteration
AWB8230-1541GB ICC-MD/ICC-MD/Ki 10/05
Printed in the Federal Republic of Germany (07/05)
Article No.: xxxxxx
4 *patpks#nycmyn*
Hardware and Engineering
10/05 AWB8230-1541GB
A
A A
Think future. Switch to green. Think future. Switch to green.
Rückenbreite bis 10 mm (1 Blatt = 0,106 mm, gilt nur für XBS)

All brand and product names are trademarks or registered
trademarks of the owner concerned.
1st published 2005, edition date 10/05
© Moeller GmbH, 53105 Bonn
Author: Jörg Randermann
Production: Michael Kämper
Translation: Dominik Kreuzer
All rights reserved, including those of the translation.
No part of this manual may be reproduced in any form
(printed, photocopy, microfilm or any other process) or processed,
duplicated or distributed by means of electronic systems without
written permission of Moeller GmbH, Bonn.
Subject to alteration without notice.
Rückenbreite festlegen! (1 Blatt = 0,106 mm, gilt nur für XBS)

I
Before commencing the installation
• Disconnect the power supply of the device.
• Ensure that devices cannot be accidentally restarted.
• Verify isolation from the supply.
• Earth and short circuit the device.
• Cover or enclose any adjacent live components.
• Follow the engineering instructions (AWA) for the
device concerned.
• Only suitably qualified personnel in accordance with
EN 50110-1/-2 (VDE 0105 Part 100) may work on this
device/system.
• Before installation and before touching the device ensure
that you are free of electrostatic charge.
• The functional earth (FE) must be connected to the protective
earth (PE) or the potential equalisation. The system installer is
responsible for implementing this connection.
• Connecting cables and signal lines should be installed so
that inductive or capacitive interference does not impair the
automation functions.
• Install automation devices and related operating elements in
such a way that they are well protected against unintentional
operation.
• Suitable safety hardware and software measures should be
implemented for the I/O interface so that an open circuit on the
signal side does not result in undefined states in the
automation devices.
• Ensure a reliable electrical isolation of the extra-low voltage of
the 24 V supply. Only use power supply units complying with
IEC 60364-4-41 (VDE 0100 Part 410) or HD384.4.41 S2.
• Deviations of the mains voltage from the rated value must
not exceed the tolerance limits given in the specifications,
otherwise this may cause malfunction and dangerous
operation.
• Emergency stop devices complying with IEC/EN 60204-1 must
be effective in all operating modes of the automation devices.
Unlatching the emergency-stop devices must not cause a
restart.
• Devices that are designed for mounting in housings or control
cabinets must only be operated and controlled after they have
been installed and with the housing closed. Desktop or
portable units must only be operated and controlled in
enclosed housings.
• Measures should be taken to ensure the proper restart of
programs interrupted after a voltage dip or failure. This should
not cause dangerous operating states even for a short time.
If necessary, emergency-stop devices should be implemented.
• Wherever faults in the automation system may cause injury or
material damage, external measures must be implemented to
ensure a safe operating state in the event of a fault or
malfunction (for example, by means of separate limit switches,
mechanical interlocks etc.).
• Depending on their degree of protection, frequency inverters
may contain live bright metal parts, moving or rotating
components or hot surfaces during and immediately after
operation.
• Removal of the required covers, improper installation or
incorrect operation of motor or frequency inverter may cause
the failure of the device and may lead to serious injury or
damage.
• The applicable national accident prevention and safety
regulations apply to all work carried on live frequency
inverters.
• The electrical installation must be carried out in accordance
with the relevant regulations (e. g. with regard to cable cross
sections, fuses, PE).
• Transport, installation, commissioning and maintenance work
must be carried out only by qualified personnel (IEC 60364,
HD 384 and national occupational safety regulations).
• Installations containing frequency inverters must be provided
with additional monitoring and protective devices in
accordance with the applicable safety regulations.
Modifications to the frequency inverters using the operating
software are permitted.
Moeller GmbH Safety instructions
Warning!
Dangerous electrical voltage!

II
• All covers and doors must be kept closed during operation.
• To reduce the hazards for people or equipment, the user must
include in the machine design measures that restrict the
consequences of a malfunction or failure of the drive
(increased motor speed or sudden standstill of motor).
These measures include:
– Other independent devices for monitoring safety-related
variables (speed, travel, end positions etc.).
– Electrical or non-electrical system-wide measures
(electrical or mechanical interlocks).
– Never touch live parts or cable connections of the frequency
inverter after it has been disconnected from the power
supply. Due to the charge in the capacitors, these parts may
still be live after disconnection. Fit appropriate warning
signs.

10/05 AWB8230-1541GB
1
About this manual 5
Abbreviations and symbols 5
1 About the DF51 series 7
System overview 7
Type code 8
Rating and nameplate 8
Inspecting the items supplied 10
Layout of the DF51 11
Features of the frequency inverters 12
Selection criteria 12
Intended use 13
From DF5 to DF51 14
Service and warranty 14
2 Engineering 15
Features of the DF51 15
Connection to power supply 18
– Mains configurations 18
– Mains voltage, mains frequency 18
– Interaction with p.f. correction equipment 18
– Fuses and conductor cross-sections 18
– Residual current circuit-breakers 19
– Mains contactor 19
– Current peaks 19
– Line reactor 19
– Line filters 20
– EMC compliance 20
EMC Directive for PDS drive systems 20
– Interference immunity 20
– Emitted interference and radio interference
suppression 20
– EMC interference class 21
Motor and circuit type 21
Braking 24
–DCbraking 24
– Dynamic braking 24
PID control 25
3 Installation 27
Fitting the DF51 27
– Mounting position 27
– Fitting dimensions 27
– Mounting the DF51 29
EMC compliance 29
– EMC-compliant installation 29
– Fitting a radio-interference (RFI) filter 29
– EMC measures in the control panel 30
– Earthing 31
– Cable routing 32
– Screening 33
Contents

Contents 10/05 AWB8230-1541GB
2
Electrical connection 34
– Connecting the power section 34
– Connecting a signalling relay 41
– Connecting the control signal terminals 42
4UsingtheDF51 49
Operational warnings 49
Block diagram 50
Initial starting 51
– Standard operation, actuation with default settings 52
– Default functions of output terminals 54
Keypad 55
– Navigation within the menu 55
– Quick parameter selection 56
– Menu overview 56
– Setting the display parameters 57
– Examples for changing parameters 58
Using the keypad 61
– Controlling the DF51 with keypad DEX-KEY-6 61
5 Setting parameters 63
Motor data 64
Motor control 65
–U/fcharacteristic 65
– Limit and target values 66
– Automatic voltage regulation (AVR) 67
– Output voltage and voltage boost 68
Reference and control signal inputs 69
– Basic parameters 72
– Control signal terminal overview (input) 74
– Start signal input 77
– Parameterizable digital inputs 77
– Controller inhibit and coasting (free run stop – FRS) 79
– Three-wire control (STA – STP – F/R) 80
– Control signal terminal modus (F-TM) and keypad
(OPE) 81
– Second parameter set (SET) 83
– Special functions in the second parameter set
(SP-SET) 83
– Specifying reference frequencies 86
– Changing over time ramps 93
– Minimum and maximum operating frequency 95
– Suppressing frequency ranges 96
– Fixed frequencies 97
– Motor potentiometer 99
– Jog mode 101
Actual value and status signals 102
– Control signal terminal overview (output) 102
– Analog output (AM) 104
– Parameterizable digital outputs 105
– Signalling relay K1 (terminals K11, K12, K14) 107
– RUN signal 109
– Frequency value signal (FA1/FA2) 110

10/05 AWB8230-1541GB Contents
3
Monitoring functions 112
– Limiting motor current 112
– Suppressing overcurrent stopping 113
– Overload signal (OL) 114
– Thermal overload 115
– Thermistor (PTC) 116
– Supply voltage (POWER) 117
– Fault messages 119
– Fault register 120
– Fault signal (AL) 121
– External fault signal (EXT) 121
– Resetting fault signals (RST) 122
– Automatic restart after a fault 123
– Unattended start protection 124
Braking 125
– DC braking (DCB) 125
Mathematical and logic functions 127
– Mathematical functions 127
– Frequency offset (ADD) 128
– Logic functions 129
PID control 131
– Configuring PID control 134
– Activating and deactivating PID control (PID) 136
– PID system deviation (OD) 136
– Application examples 137
– Feedback value check signal (FBV) 139
System settings 140
– STOP key 140
– Type of motor stop 140
– Deceleration ramp, interrupting 141
– Pulse frequency (PNU b083) 141
– Reduced response time (RDY) 142
– Parameter access inhibit (SFT) 143
– Parameter inhibit (PNU b031) 143
– Initialization (restoring default settings) 144
– Debug mode (PNU C091) 145
6 Serial interface (Modbus) 147
General information about Modbus 147
The RS 485 port 147
Communications in a Modbus network 147
Connecting to a Modbus network 148
Parameter settings for Modbus 149
Setting the OPE/485 DIP switch 150
Displayed value (selection with PNU b089) 151
The network protocol 151
– Transmission 151
– Function names and numbers 152
Modbus register 161
Holding register (word variable) 163
7 Troubleshooting 185

Contents 10/05 AWB8230-1541GB
4
8 Maintenance and inspection 187
General 187
Device fans 188
Appendix 189
Technical data 189
– General technical data of the DF51 189
– Specific technical data of the DF51-322 190
– Specific technical data of the DF51-320 191
– Specific technical data of the DF51-340 192
Weights and dimensions 193
Optional modules 195
– Keypad DEX-KEY-6… 195
– Equipment supplied 195
– Layout of the DEX-KEY-6… 196
– Connecting LCD keypad to DF51 196
– Mounting frame DEX-MNT-K6 197
Keypad DEX-KEY-10 201
– Connecting LCD keypad to DF51 201
– Configuring keypad DEX-KEY-10 201
– CANopen interface module DE51-NET-CAN 206
Cables and fuses 207
RFI filters 208
Mains contactors 210
Line reactors 212
Motor reactors 213
Sine-wave filter 214
Abbreviations of parameters and functions 216
Table for user-defined parameter settings 217
UL®cautions, warnings and instructions 233
Index 235

10/05 AWB8230-1541GB
5
About this manual
This manual describes the DF51 series frequency inverters.
It contains special information which is required for engineering,
installation and operation of the DF51 frequency inverters. The
features, parameters and functions are described in detail and
illustrated with examples of the most important applications. All
given details relate to the specified hardware and software
versions.
Abbreviations and symbols
The following abbreviations and symbols are used in this manual:
All measurements are in millimetres unless otherwise stated.
To improve the clarity of the illustrations, the enclosures of the
frequency inverter and other safety components may not be shown
in some figures. In practice, the frequency inverter must always be
operated with the enclosure and all necessary components that
affect equipment safety correctly fitted.
Read the manual thoroughly before you install and operate the
frequency inverter. We assume that you have a good knowledge
of engineering fundamentals and that you are familiar with
electrical systems and the applicable principles and are able to
read, interpret and apply the information contained in technical
drawings.
XIndicates instructions to be followed
To improve readability, the title of the chapter is indicated on the
top of the left-hand page and the current section is indicated on
the top of the right-hand page. Pages where chapters commence
and blank pages at the end of the chapter are an exception.
EMC Electro Magnetic Compatibility
ESD Electrostatic Discharge
HF High Frequency
IGBT Insulated Gate Bipolar Transistor
PES Positive Earth connection of the cable Screen
PNU Parameter Number
RCD Residual Current Protective Device
DS Factory Default Setting
hIndicates useful tips and additional information
Caution!
Warns about the possibility of minor material damage.
Warning!
Warns about the possibility of major material damage and
minor injury.
Danger!
Warns about the possibility of major material damage and
severe injury or death.

10/05 AWB8230-1541GB
6

10/05 AWB8230-1541GB
7
1 About the DF51 series
System overview
Figure 1: System overview
aDF51-... frequency inverter
bDE51-LZ... RFI filters
cLCD keypad with built-in interface
dFieldbus module DE51-NET-CAN, DE51-NET-DP (CANopen, PROFIBUS DP)
eDEX-CBL-...-ICS connection cables
fDEX-DEY-10 external keypad
gExternal keypad DEX-DEY-61
hDEX-DEY-6 external keypad
h
b
g
f
a
c
e
d
A
RUN
PRG
Hz
PRG ENTER
IO
POWER
ALARM
Hz
A
RUN
POWER
ALARM
PRG
IO
PRG ENTER
Hz
A
RUN
POWER
ALARM
PRG
IO
PRG ENTER

About the DF51 series 10/05 AWB8230-1541GB
8
Type code
Type codes and part numbers of the DF51 series frequency
inverters:
Examples:
Rating and nameplate
The electrical connection ratings are printed on the terminal
shroud.
Figure 2: Type codes of the DF51 frequency inverters
DF51-320-K0 The DF51 frequency inverters
Three-phase mains supply voltage: 230 V
Assigned motor rating: 3 kW at 230 V
DF51-322-075 The DF51 frequency inverters
Single-phase or three-phase supply: 230 V
Assigned motor rating: 0.75 kW at 230 V
DF51-340-5K5 The DF51 frequency inverters
Three-phase mains supply voltage: 400 V
Assigned motor rating: 5.5 kW at 400 V
DF51-xxx-yyy
Motor rating code
Incoming supply: EU rated voltage (230 V/400 V)
Version and model number
0 = basic version
2 = 1- or 3-phase supply connection
Supply connection, voltage code (EU rated value)
2 = 230 V (180 V – 0 % to 252 V + 0 %)
4 = 400 V (342 V – 0 % to 528 V + 0 %)
Supply connection, phase code
3 = three-phase
Family name:
Drives Frequency Inverter, Generation 5.1
Figure 3: Terminal shroud example
aUe = rated voltage (mains supply voltage) 230 V
50/60 Hz = mains frequency
b9A = phase current at single-phase connection
c5.2A = phase current at three-phase connection
dDF51-322-075 = part number
e3AC = three-phase output voltage in range from zero to mains
supply voltage (Ue) rated current 4 A
f0.75 kW = assigned motor rating at rated voltage (230 V) or 1 HP
(horse power)
M
Ue, 50/60Hz
1AC 230V, 9A
3AC 230V, 5.2A
DF51-322-075
3AC 0...Ue, 4A
0.75kW (230V)
1HP (230V)
WARNUNG! Gefährliche Spannung
Entladezeit 5 min
WARNING! Dangerous Voltage
Discharge time 5 min
3
a
b
c
d
e
f

10/05 AWB8230-1541GB Rating and nameplate
9
The DF51’s rating is recorded on the nameplate on the unit’s side.
The labelling has the following meaning (example):
Figure 4: Nameplate of DF51 frequency inverter
A
RUN
PRG
Hz
PRG ENTER
IO
POWER
ALARM
Type : DF51-322-025
Input : 1/3AC 230V, 3.1A, 2.0A
(Ue : 180...264g0%, 50/60Hz
Output : 3AC 0...Ue, 1.4A, 0...400Hz
Motor : 0.25kW (230V) 0. 25HP (230V)
MFG-No : 47A T21706LB Date: 0407
Type Part number: DF51-322-025
Input Mains input values:
phases, rated voltage, phase current and permissible
voltage range, mains frequency
1 AC 230 V, 3.1A
3 AC 230 V, 2.0 A
(Ue: 180–264 Vg0 %, 50/60 Hz)
Output Motor output values:
phases, voltage range, rated current, frequency range
3 AC 0…Ue, 1.4 A, 0…400 Hz
Motor Assigned motor rating at specified rated voltage: 0.25 kW (230 V)
0.25 HP (230 V)
MFG-No Manufacturer number and date 47AT21706LB Date: 0407

About the DF51 series 10/05 AWB8230-1541GB
10
Inspecting the items supplied
The DF51 frequency inverters have been carefully packaged and
prepared for delivery. The devices must be transported only in their
original packaging with a suitable transport system (see weight
details). Observe the instructions and the warnings on the side of
the packaging. This also applies after the device is removed from
the package.
Open the packaging with suitable tools and inspect the contents
immediately after delivery to ensure that they are complete and
undamaged. The package should contain the following items:
• one DF51 frequency inverter
• installation instructions AWA8230-2146,
•aCDwith:
– this manual in PDF format in English and other languages
– the parameterization software for Windows PCs (98 to XP).
For the parameterization software you will need the connection
cable with the DEX-CBL-2M0-PC interface converter (not included
as standard).
CD
Figure 5: Equipment supplied
A
RUN
PRG
Hz
PRG ENTER
IO
POWER
ALARM
hCheck the nameplate attached to the frequency inverter
(asection “Rating and nameplate”, page 8) to ensure
that the frequency inverter is the type you have ordered.

10/05 AWB8230-1541GB Layout of the DF51
11
Layout of the DF51
Figure 6: Overview of the DF51
aLCD keypad with interface
bDevice fan (DF51...1K5 to ...7K5 only)
cRJ 45 communication interface (Modbus)
dMicroswitch
eControl signal terminals
fOptional radio interference filter
gHeat sink
hEarth connection (PE)
iPower terminals
jSignalling relay terminals
kTerminal shroud (control section, power section)
j
c
i
h
a
k
f
d
e
b
g
IO
K12 K14 K11
AM
H O
OI
L
L 5
4 3 2 1
P24
CM2
12 11
A
RUN
PRG
Hz
PRG ENTER
IO
POWER
ALARM

About the DF51 series 10/05 AWB8230-1541GB
12
Features of the frequency inverters
The DF51 frequency inverters convert the voltage and frequency of
an existing three-phase supply to a DC voltage and use this
voltage to generate a three-phase supply with adjustable voltage
and frequency. This variable three-phase supply allows stepless
variability of three-phase asynchronous motors.
aMains input
Mains voltage Ue (EU rated voltage):
DF51-320 3 AC 230 V, 50/60 Hz
DF51-322 1/3 AC 230 V, 50/60 Hz
DF51-340 3 AC 400 V, 50/60 Hz
bThe bridge rectifier converts the AC voltage of the electrical supply to
a DC voltage.
cThe DC link contains a charging resistor, smoothing capacitor and
switched-mode power supply unit. It enables coupling of the DC bus
voltage and the DC current supply (UZK) = W2 xmains voltage (Ue)
dIGBT power inverter:
The power inverter converts the DC voltage of the internal DC link to
a variable three-phase alternating voltage with variable frequency.
eOutput voltage (U2), motor connection:
three-phase, variable alternating voltage, 0 to 100 % of input voltage
(Ue)
Output frequency (f2): variable from 0 to 400 Hz
Rated output current (I2N):
1.4 to 32 A (230 V series), 1.5 to 16 A (400 V series) with about 1.5
times starting current for 60 s, at an operating frequency of 5 kHz and
an ambient temperature of 40 °C. Starting torque: 100 % at 6 Hz.
Motor connection, assigned shaft power (P2):
0.25 to 7.5 kW at 230 V
0.37 to 7.5 kW at 400 V
fLCD keypad with interface (RJ 45, Modbus).
Selection criteria
Select a suitable frequency inverter according to the rated motor
current. The frequency inverter’s rated output current must be
greater than or equal to the motor’s rated current.
The following drive data is assumed to be known:
• Type of motor (three-phase asynchronous motor),
• Mains voltage = supply voltage of the motor (for
example 3 ~ 400 V),
• Rated motor current (guide value, dependent on the circuit type
and the supply voltage)
• Load torque (square-law, constant, with 1.5 times the starting
torque)
• Ambient temperature (rated value 40 °C).
Figure 7: Function diagram of the frequency inverter
M
3˜
bc
f
d
a
e
+
hIf several motors are connected in parallel to the output of
a frequency inverter, the motor currents are geometrically
added, i.e. separately by active and reactive current
components. Select a frequency inverter with a sufficient
rating to allow it to supply the total required current.

10/05 AWB8230-1541GB Intended use
13
For the frequency inverter’s rated output current, see the
paragraph “Technical data” in the appendix from page 189.
Intended use
The DF51 frequency inverters are not domestic appliances. They
are designed only for industrial use as system components.
The DF51 frequency inverters are electrical apparatus for
controlling variable speed drives with three-phase motors. They
are designed for installation in machines or for use in combination
with other components within a machine or system.
After installation in a machine, the frequency inverters must not be
taken into operation until the associated machine has been
confirmed to comply with the safety requirements of Machinery
Safety Directive (MSD) 89/392/EEC and meets the requirements of
EN 60204. The user of the equipment is responsible for ensuring
that the machine use complies with the relevant EU Directives.
The CE markings on the DF51 frequency inverter confirm that,
when used in a typical drive configuration, the apparatus complies
with the European Low Voltage Directive (LVD) and the EMC
Directives (Directive 73/23/EEC, as amended by 93/68/EEC and
Directive 89/336/EEC, as amended by 93/68/EEC).
In the described system configurations, DF51 frequency inverters
are suitable for use in public and non-public networks. Depending
on their location of use, external filtering may be necessary.
A connection to IT networks (networks without reference to earth
potential) is permissible only to a limited extent, since the device’s
built-in filter capacitors connect the network with the earth
potential (enclosure). On earth free networks, this can lead to
dangerous situations or damage to the device (isolation
monitoring required).
On the output of the frequency inverter (terminals U, V, W) you
must not:
• connect a voltage or capacitive loads (e.g. phase compensation
capacitors),
• connect multiple frequency inverters in parallel,
• make a direct connection to the input (bypass).
Observe the technical data and terminal requirements. Refer to the
equipment nameplate or label and the documentation for more
details.
Any other usage constitutes improper use.
hIf a motor switches during operation on the output of a
frequency inverter, the current draws a multiple of its
rated current. When you select a frequency inverter, make
sure that the starting current plus the sum of the currents
of the running motors will not exceed the rated output
current of the frequency inverter.

About the DF51 series 10/05 AWB8230-1541GB
14
From DF5 to DF51
The frequency inverter DF51 has been developed from the proven
DF5 series. It shares its basic functions, terminal markings, menu
structure, etc. with its predecessor, but features additional, new
functions. The following list gives a short overview of the most
important changes.
• Reduced the enclosure size and fewer enclosure versions.
Same footprint dimensions: DF5-322-018, DF5-322-037,
DV5-322-056 hDF51-322-025, DF51-322-037,
DF51-322-055.
• Volume reduced by up to 48 % (B xH xT)
for example DF5-340-4K0 (140 x184.5 x175 mm3) h
DF51-340-4K0 (140 x130 x166 mm3)
• Compact design without built-in keypad. The DEX-KEY-6
keypad is available as an option and can also be used remotely,
for example mounted on a control panel door with optional
mounting frame DEX-MNT-K6.
• Plug-in fieldbus modules for CANopen (Option DE51-NET-CAN)
and PROFIBUS DP (Option DE51-NET-DP).
• Plug-in control terminals
• The parameter numbers (PNU) have been retained but – like the
DF6 and DV6 series – now have an added, fourth digit. For
example A0 becomes A001 and C03 is now C003.
• Extended functionality (e.g. PID controller).
• The new logic function allows logic linking (AND, OR, XOR) of
the digital outputs as well as the addition and multiplication of
the analog reference and actual values.
• Because of the units’ modular design and extensive
communication capability, the control hierarchy can now be
defined with microswitches (485/OPE and TM/PRG).
Service and warranty
In the unlikely event that you have a problem with your Moeller
frequency inverter, please contact your local sales office.
When you call, have the following information ready:
• Exact frequency inverter part number (anameplate)
• Date of purchase
• Exact description of the problem which has occurred with the
frequency inverter.
If some of the information printed on the nameplate is not legible,
give only the information that is clearly legible.
Information concerning the guarantee can be found in the Moeller
General Terms and Conditions of Sale.
Figure 8: Comparison of DV5 with DV51
A
RUN
PRG
Hz
PRG ENTER
IO
POWER
ALARM

10/05 AWB8230-1541GB
15
2 Engineering
This section describes the „Features of the DF51“ and the
requirements and standards relating to the following issues:
• Connection to power supply
• EMC Directive for PDS drive systems
Features of the DF51
General
Standards EN 50178, IEC 61800-3, EN 61800-3 incl. A11
Ambient temperature1)
Operating temperature °C –10 to +40 with rated current Iewithout reduced performance, up to 50 with clock
frequency reduced to 2 kHz and output current reduced to 80 % Ie
Storage, transportation °C –25 to +70
Mechanical shock resistance Impacts and vibration: up to 5.9 m/s2(0.6 g) at 10 to 55 Hz
Pollution degree VDE 0110 Part 2, pollution degree 2
Climatic proofing Class 3K3 according to EN 50178 (non-condensing, average relative humidity 20 to
90 %)
Installation altitude m 0 to 1000 m above sea level
Mounting position Vertically suspended
Free surrounding areas 100 mm above and below device
Emitted interference IEC/EN 61800-3 (EN 55011 group 1, class B)
Noise immunity IEC/EN 61800-3, industrial environment
Insulation resistance Overvoltage category III according to VDE 0110
Leakage current to PE mA > 3.5 (to EN 50178)
Degree of protection IP 20
Protection against direct contact Finger and back-of-hand proof
Protective isolation against switching circuitry Safe isolation from the mains. Double basic isolation (to EN 50178)
Protective measures Overcurrent, earth fault, overvoltage, undervoltage, overload, overtemperature,
electronic motor protection: Jmonitoring and PTC input (thermistor or thermostat)
Power section
DF51-320-…
Rated operational voltage V AC 230
Rated voltage UeV 3 AC 180 to 264 V g0 %
DF51-322-…
Rated operational voltage V AC 230
Rated voltage UeV1/3 AC 180 to 264 V g0 %
DF51-340-…
Rated operational voltage V AC 400
Rated voltage UeV 3 AC 342 to 528 V g0 %
Mains frequency Hz 50/60 (47 to 63 g0 %)
Modulation method Pulse width modulation (PWM), U/fcharacteristic control
Switching frequency 5 kHz, adjustable from 2 to 14 kHz
Output voltage V 3 AC Ue
Output frequency Hz 0 – 50, max. 400

Engineering 10/05 AWB8230-1541GB
16
Frequency resolution Hz 0.1 at digital reference values/maximum frequency/1000 at analog reference values
Frequency error limit at 20 °C g10 K g0.01 % of maximum frequency at digital reference values, g0.1 % of maximum
frequency at analog reference values
Permissible overcurrent 150 % for 60 s, every 600 s
Torque during start 100 % from 6 Hz
DC braking DF 0 to 100 %, range: 0.5 to 60 Hz, braking time: 0 to 60 s
Control section
Internal voltages
Control V H24, max. 30 mA
Setpoint value definition V H10, max. 10 mA
Analog and digital actuation
Analog outputs • 1 output
• 0 – 10 V H, max. 1 mA
• Resolution 8 bit
Analog inputs • 1 input, 0 to 9.6 V H(10 V normal),
• Input impedance 10 kO
• 1 input, 4 to 19.6 mA (20 mA normal),
• Load resistor: 250 O
• Resolution: 10 bit
Digital inputs • 5 inputs, user-configurable
•Upto27VH
•Low:F2VH
• High: 17.4 … 27 V H
• Input impedance 5.6 kO
Digital outputs • 2 outputs
• max. 27 V H, max. 1 mA
Serial interface RS 485 (Modbus RTU, up to 19.2 Kbit/s)
Relay, changeover contact • 250 V AC, max. 2.5 A (resistive load)
• 250 V AC, max. 0.2 A (inductive load, p.f. = 0.4)
• AC 100 V AC, minimal 10 mA
• 30 V DC, max. 3 A (resistive load)
• 30 V DC, max. 0.7 A (inductive load, p.f. = 0.4)
• DC 5 V, minimal 100 mA
Keypad
Operation • 4 function keys for setting parameters
• 2 function keys for actuation
Display Four-digit 7-segment display and 8 LEDs (status indication)
Potentiometer Setpoint value definition
1) If the frequency inverter is to be installed in a control panel, enclosure or similar installation, the temperature within the enclosure or control panel is
considered to be ambient temperature Ta.
All power section ratings are based on an operating frequency of 5 kHz (default) and an ambient temperature of +40 °C, during operation of a four-
pole three-phase asynchronous motor.