ABB FEN-21 User manual
—
OPTIONS FOR ABB DRIVES AND CONVERTERS
Resolver Interface FEN-21
User's manual
Table of contents
1 Safety instructions
7Contents of this chapter ........................................................................
7Overview ............................................................................................
7General safety instructions .....................................................................
2 Introduction
9Contents of this chapter ........................................................................
9Intended audience ................................................................................
9Before you start ...................................................................................
3 Hardware description
11Contents of this chapter ........................................................................
12The FEN-21 Resolver Interface .................................................................
13FEN-21 connections ...........................................................................
14Isolation areas .................................................................................
14Compatibility ......................................................................................
14Resolvers ........................................................................................
14TTL Encoders ..................................................................................
4 Installation
15Contents of this chapter ........................................................................
16Setting the supply voltage ......................................................................
17Mounting ...........................................................................................
17Terminal designations ...........................................................................
17Abbreviations ..................................................................................
18TTL encoder input (X51) .....................................................................
19Resolver input ..................................................................................
20TTL encoder emulation output (X53) .....................................................
20Digital inputs for position latching (X54) ................................................
21General encoder wiring guidelines ............................................................
22TTL Encoder input (X51) .....................................................................
23Resolver input (X52) ..........................................................................
25TTL Encoder emulation output (X53) .....................................................
26Digital inputs for position latching (X54) ................................................
27General encoder phasing principle ...........................................................
28Excitation signal ...............................................................................
5 Start-up
29Contents of this chapter ........................................................................
29Programming ......................................................................................
6 Fault tracing
31Contents of this chapter ........................................................................
31Diagnostic LEDs ..................................................................................
Table of contents 5
7 Technical data
33Contents of this chapter ........................................................................
34Dimensions ........................................................................................
34General ..............................................................................................
34Connectors .........................................................................................
35TTL encoder input (X51) .........................................................................
35Resolver interface ................................................................................
35TTL encoder emulation output (X53) .........................................................
35Digital inputs for position latch (X54) .......................................................
Further information
6 Table of contents
Safety instructions
Contents of this chapter
The chapter contains the warning symbols and the safety instructions which you must
obey when you install or connect an optional module to a drive or converter. If you
ignore the safety instructions, injury, death or damage can occur. Read this chapter
before you start the installation.
Overview
This chapter states the general safety instructions that must be followed when
installing and operating the FEN-21.
In addition to the safety instructions given below, read the complete safety instructions
of the specific drive you are working on.
These warnings are intended for all who work on the drive. Ignoring the instructions
can cause physical injury or death, or damage the equipment.
General safety instructions
WARNING!
All electrical installation and maintenance work on the drive must be carried
out by qualified electricians only.
The drive and adjoining equipment must be properly earthed.
Do not attempt any work on a powered drive. After switching off the mains, always
allow the intermediate circuit capacitors 5 minutes to discharge before working on
the frequency converter, the motor or the motor cable. Check (with a voltage tester)
that the drive is in fact discharged before beginning work.
1
Safety instructions 7
The motor cable terminals of the drive are at a dangerously high voltage when mains
power is applied, regardless of motor operation.
There can be dangerous voltages inside the drive from external control circuits even
when the drive mains power is shut off.
Exercise appropriate care when working on the unit.
These warnings are intended for all who work on the drive. Ignoring the instructions
can cause physical injury or death, or damage the equipment.
For complete safety instructions see the drive manuals.
8 Safety instructions
Introduction
Contents of this chapter
This chapter introduces this manual.
Intended audience
The manual is intended for the people who are responsible for commissioning and
using the FEN-21. The reader is expected to have a basic knowledge of electrical
fundamentals, electrical wiring practices and how to operate the drive.
Before you start
It is assumed that the drive is installed and the drive power supply is switched off
before starting the installation of the extension module. Ensure that all dangerous
voltages connected from external control circuits to the inputs and outputs of the
drive are switched off.
In addition to conventional installation tools, have the drive manuals available during
the installation as they contain important information not included in this manual.
The drive manuals are referred to at various points of this document.
2
Introduction 9
10
Hardware description
Contents of this chapter
This chapter contains a short description of the FEN-21 Resolver Interface and a delivery
checklist.
3
Hardware description 11
The FEN-21 Resolver Interface
The FEN-21 offers an interface for a resolver with PTC/KTY support and TTL encoder
connection and a TTL encoder emulation output. It also supports two digital inputs
for position latching.
6
7
5
4
2
3
1
8
2 digital latch inputs (X54)1
Fixing screw2
TTL encoder input (X51)3
Encoder voltage selection jumper (X301)4
Resolver input with PTC/KTY support (X52)5
Diagnostic LEDs6
TTL encoder emulation output (X53)7
Locking tab8
12 Hardware description
￭FEN-21 connections
The following figure shows an overview of the connections of the FEN-21.
ACSXXX ACSXXX
X51
FEN-21
X52
X53
X54
Sensor
(optional)
Encoder
Hardware description 13
￭Isolation areas
The following figure describes the different isolation areas of the module.
X201
X53
X52
X51
A B
C
2
3
4
6 7
1
5
X54
Connection to the drive1
TTL encoder emulation output2
Resolver input3
TTL encoder input4
Digital latches5
Fixing screw6
Chassis7
The shields of sockets X51 and X52 and plug X53 are connected to chassis. The fixing
screw connects the chassis to ground.
Compatibility
￭Resolvers
The FEN-21 is compatible with resolvers, which are excited by sinusoidal voltage (to
the rotor winding), and which generate sine and cosine signals proportional to the
rotor angle (to stator windings). Amplitude and frequency of the excitation signal can
be adjusted in range 4...12 Vrms, 1...20 kHz. Transformation ratio of the resolver must
be such that sine and cosine signals remains in range 2...7 Vrms.
￭TTL Encoders
The FEN-21 is compatible with TTL incremental encoders with 1...65535 pulses/rev
and it supports reference mark.
14 Hardware description
Installation
Contents of this chapter
This chapter contains instructions on installing the Resolver Interface module.
WARNING!
Follow the safety instructions given in this guide and in the drive hardware
manual.
4
Installation 15
Setting the supply voltage
WARNING!
Selecting the wrong supply voltage may damage or break the encoder.
A selectable supply voltage is provided for the TTL encoders input. A +5.5 V or a +24 V
voltage for a TTL encoder can be selected by a jumper as described by the following
figure.
+24 V +5.5 V
TTL Encoder (X51) Not used
Note: If an external power supply is used, the appropriate jumper must be removed.
Note: If another FEN interface's TTL emulation output is connected to TTL input, the
appropriate jumper must be removed.
16 Installation
Mounting
WARNING!
Before installation, do the electrical safety precautions given in section Safety
instructions.
Note: Before mounting the option module, set the supply voltage jumpers as described
above.
The option module is to be inserted into the option slot of the drive. See the drive
hardware manual for more information.
The module is held in place with plastic retaining clips, a locking tab and one screw.
The screw also provides the earthing of the cable shields connected to the module
and interconnects the GND signals of the module and the drive.
On installation of the module, the signal and power connection to the drive is
automatically made through a 20-pin connector.
Numbers in brackets refer to the layout drawing in section layout.
Mounting procedure:
1. Pull out the locking tab (8)
2. Insert the module carefully into the option slot until the retaining clips lock the
module into position
3. Push in the locking tab (8)
4. Fasten the screw (included) to the stand-off.
If you need to remove the adapter module after it has been installed into the drive,
use a suitable tool (e.g. small pliers) to carefully pull out the locking tab.
Note: Correct installation of the screw is essential for fulfilling the EMC requirements
and for proper operation of the module.
Terminal designations
￭Abbreviations
Analog inputAI
Analog outputAO
Digital inputDI
Digital outputDO
Power outputPO
Installation 17
￭TTL encoder input (X51)
5
987 6
4321
DescriptionDirectionNamePin
Channel A+DIA+1
Channel B+DIB+2
Channel Z+DIZ+3
Common-COM_C4
Supply voltage (5.5 V or 24 V)POVCC_ENC_15
Channel A-DIA-6
Channel B-DIB-7
Channel Z-DIZ-8
Common-COM_C9
Shield-Shield-
18 Installation
￭Resolver input
5
10
15 14 13 12 11
9 8 7 6
4 3 2 1
EXCITATION+
EXCITATION-
GND GND COM_B COM_B GND
COM_B GND COS+ SIN+
PTC/KTY_0V PTC/KTY COS- SIN-
DescriptionDirectionNamePin
Inverted sine signalAISIN-1
Inverted cosine signalAICOS-2
Temperature sensorAIPTC/KTY3
Common, reserved for temperature sensor-COM_B4
Excitation signal+AOEXCITATION+5
Sine signalAISIN+6
Cosine signalAICOS+7
Chassis, reserved for a twisted pair's shield1)
-GND8
Common-COM_B9
Excitation signal-AOEXCITATION-10
Chassis, reserved for a twisted pair's shield1)
-GND11
Common-COM_B12
Common-COM_B13
Chassis, reserved for a twisted pair's shield1)
-GND14
Chassis, reserved for a twisted pair's shield1)
-GND15
Shield-Shield-
1) Optional mounting method for twisted pair's shields
Installation 19
￭TTL encoder emulation output (X53)
5
9 8 7 6
41
2
3
EM_A+
EM_A-
EM_B+
EM_B-
EM_Z+
EM_Z-
COM_BNC
COM_B
DescriptionDirectionNamePin
Channel A+DOEM_A+1
Channel B+DOEM_B+2
Channel Z+DOEM_Z+3
Common-COM_B4
Not connected-NC5
Channel A-DOEM_A-6
Channel B-DOEM_B-7
Channel Z-DOEM_Z-8
Common-COM_B9
Shield-Shield-
￭Digital inputs for position latching (X54)
DescriptionDirectionNamePin
Supply voltagePO+24V_C1
Common-COM_C2
Latch signal 1DIDI_1+3
Latch signal 1 return-DI_1-4
Latch signal 2DIDI_2+5
Latch signal 2 return-DI_2-6
20 Installation
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