Interface Electronics

Interface Electronics
Product Overview
Interface
Electronics
September 2010
Interface electronics from HEIDENHAIN
adapt the encoder signals to the interface
of the subsequent electronics. They are
used when the subsequent electronics
cannot directly process the output signals
from HEIDENHAIN encoders, or if
additional interpolation of the signals is
necessary.
APE 371
EIB 392
IBV 100
EXE 100
This catalog supersedes all previous
editions, which thereby become invalid.
The basis for ordering from HEIDENHAIN
is always the catalog edition valid when
the contract is made.
Standards (ISO, EN, etc.) apply only
where explicitly stated in the catalog.
2
Contents
Overview
Mechanical Design Types
4
Selection Guide
6
Electrical Connection
Interfaces
8
Incremental Signals « TTL
10
EnDat Absolute Position Values
General Electrical Specifications
12
IK 220
EIB 741
PROFIBUS Gateway
3
98
E.g. IBV 100
80
Box design
Because of their high degree of protection
(IP 65), interface electronics with a box
design are especially well suited for the
rough industrial environment typically
found where machine tools operate. The
inputs and outputs are equipped with
robust M23 and M12 connecting elements.
The stable cast-metal housing offers
protection against physical damage as well
as against electrical interference.
64
Mechanical Design Types
The EXE/IBV 100 series distinguishes itself
from the EXE/IBV 600 series primarily in its
compact dimensions.
175
E.g. IBV 600
213
142 6
142.6
Benchtop design
The interface electronics in benchtop
design are intended for installation in
electrical cabinets (also 19") and measuring
and inspection tasks.
EIB 741
Appropriate accessory parts can be used
to firmly attach the connecting elements,
and stack several connectors on top of
each other.
4
43
16.6
Plug design
The interface electronics with a plug design
save a large amount of space: there is room
for the entire interpolation and digitizing
electronics in an extended D-sub connector
housing. This offers protection against
physical damage (degree of protection: IP 40)
and electrical interference.
76.5
E.g. APE 371
55
Version for integration
There are also versions of the interface
electronics intended for integration in
existing electronics. These pluggable
boards must be protected against electrical
and physical influences.
IDP 100
95
100
The IDP series consists of pure
interpolation and digitizing electronics,
and is intended for integration as input
assemblies in non-HEIDENHAIN
electronics.
The IK 220 is a PC slot card with
switchable input interfaces and a counting
function for the incremental signals.
190
IK 220
Top-hat rail design
The interface electronics for top-hat rail
mounting are suited for operation in an
electrical cabinet with simple fastening on
a standard DIN rail.
Gateway
5
Selection Guide
Input signals of the interface electronics
Interface electronics from HEIDENHAIN
can be connected to encoders with
sinusoidal signals of 1 VPP (voltage signals)
or 11 µAPP (current signals). Encoders with
the serial interfaces EnDat or SSI can also
be connected to various interface
electronics.
Output signals of the interface
electronics
Interface electronics with the following
interfaces to the subsequent electronics
are available:
• TTL square-wave pulse trains
• EnDat 2.2
• FANUC serial interface
• Mitsubishi High Speed Serial Interface
• PCI bus
• Ethernet
• Profibus
Example of 5-fold interpolation
Encoder signals
360° elec.
signal period
Measured value memory
Interface electronics with integrated
measured value memory can buffer-save
measured values:
IK 220: Total of 8 192 measured values
EIB 741: Per input 250 000 measured values
Interface
Number
« TTL
1
« TTL/» 1 VPP
Adjustable
2
EnDat 2.2
1
FANUC serial interface
1
Mitsubishi High Speed Serial
Interface
1
PCI bus
1
Ethernet
1
PROFIBUS DP
1
I1, A
0
I2, B
0
I0, R
90°
Phase shift
elec.
Reference-mark signal
0
Interpolation of the sinusoidal input
signals
In addition to being converted, the
sinusoidal encoder signals are also
interpolated in the interface electronics.
This results in finer measuring steps,
leading to an increased positioning
accuracy and higher control quality.
Formation of a position value
Some interface electronics have an
integrated counting function. Starting from
the last reference point set, an absolute
position value is formed when the
reference mark is traversed, and is output
to the subsequent electronics.
Outputs
Output signals after
5-fold interpolation
Ua1
0
Ua2
0
Ua0
Measuring step
Reference pulse
0
1)
6
Switchable
Inputs
Interface
Number
» 1 VPP
1
» 11 µAPP
» 1 VPP
» 1 VPP
» 1 VPP
» 1 VPP
1
1
1
1
1
Design – protection class
Interpolation1) or
subdivision
Model
Box design – IP 65
5/10-fold
IBV 101
20/25/50/100-fold
IBV 102
Without interpolation
IBV 600
25/50/100/200/400-fold
IBV 660 B
Plug design – IP 40
5/10/20/25/50/100-fold
APE 371
Version for integration – IP 00
5/10-fold
IDP 181
20/25/50/100-fold
IDP 182
5/10-fold
EXE 101
20/25/50/100-fold
EXE 102
Without/5-fold
EXE 602 E
25/50/100/200/400-fold
EXE 660 B
Version for integration – IP 00
5-fold
IDP 101
Box design – IP 65
2-fold
IBV 6072
5/10-fold
IBV 6172
Box design – IP 65
† 16 384-fold subdivision
EIB 192
Plug design – IP 40
† 16 384-fold subdivision
EIB 392
Box design – IP 65
† 16 384-fold subdivision
EIB 192 F
Plug design – IP 40
† 16 384-fold subdivision
EIB 392 F
Box design – IP 65
† 16 384-fold subdivision
EIB 192 M
Plug design – IP 40
† 16 384-fold subdivision
EIB 392 M
Box design – IP 65
» 1 VPP
» 11 µAPP
EnDat 2.1 / 01
SSI
Adjustable
2
Version for integration – IP 00
† 4 096-fold subdivision
IK 220
» 1 VPP
EnDat 2.1
EnDat 2.2
» 11 µAPP upon request
Adjustable by software
4
Benchtop design – IP 40
† 4 096-fold subdivision
EIB 741
EnDat
1
Top-hat rail design
–
PROFIBUS
Gateway
7
Interfaces
Incremental Signals « TTL
The IBV, EXE, APE and IDP interpolation and
digitalizing electronics from HEIDENHAIN
convert the sinusoidal output signals from
HEIDENHAIN encoders, with or without
interpolation, into « TTL square-wave
signals.
The incremental signals are transmitted as
the square-wave pulse trains Ua1 and Ua2,
phase-shifted by 90° elec. The reference
mark signal consists of one or more
reference pulses Ua0, which are gated with
the incremental signals. In addition, the
integrated electronics produce their inverted
signals
, £ and ¤ for noise-proof
transmission.
The illustrated sequence of output
signals—with Ua2 lagging Ua1—applies to
the direction of motion shown in the
dimension drawing.
The fault-detection signal ¥ indicates
fault conditions such as breakage of the
power line or failure of the light source. It
can be used for such purposes as machine
shut-off during automated production.
The distance between two successive
edges of the incremental signals Ua1 and
Ua2 through 1-fold, 2-fold or 4-fold
evaluation is one measuring step.
The subsequent electronics must be
designed to detect each edge of the
square-wave pulse. The minimum edge
separation a listed in the Specifications
applies to the illustrated input circuitry with
a cable length of 1 m, and refers to a
measurement at the output of the differential
line receiver. Propagation-time differences
in cables additionally reduce the edge
separation by 0.2 ns per meter of cable
length. To prevent counting errors, design
the subsequent electronics to process as
little as 90 % of the resulting edge
separation. The max. permissible shaft
speed or traversing velocity must never
be exceeded.
8
Interface
Square-wave signals « TTL
Incremental signals
2 TTL square-wave signals Ua1, Ua2 and their inverted signals
, £
Reference-mark
signal
Pulse width
Delay time
1 or more TTL square-wave pulses Ua0 and their inverted
pulses ¤
90° elec. (can be switched to 270° elec.)
|td| † 50 ns
Fault-detection
signal
1 TTL square-wave pulse ¥
Improper function: LOW (switchable to three-state: Ua1/Ua2 high
impedance)
Proper function: HIGH
tS ‡ 20 ms
EXE 602 E: tS ‡ 250 µs can be switched to 40 ms
Pulse width
Signal levels
Differential line driver as per EIA standard RS-422
UH ‡ 2.5 V at –IH = 20 mA
UL † 0.5 V at IL = 20 mA
Permissible load
Z0 ‡ 100 −
Between associated outputs
|IL| † 20 mA
Max. load per output
Cload † 1 000 pF
With respect to 0 V
Outputs protected against short circuit to 0 V
Switching times
(10 % to 90 %)
t+ / t– † 30 ns (typically 10 ns)
with 1 m cable and recommended input circuitry
Connecting cable
Shielded HEIDENHAIN cable
PUR [4(2 × 0.14 mm2) + (4 × 0.5 mm2)]
Max. 100 m (¥ max. 50 m) at distributed capacitance 90 pF/m
6 ns/m
Cable length
Propagation time
Signal period 360° elec.
Measuring step after
4-fold evaluation
Inverse signals
, £, ¤ are not shown
Fault
The permissible cable length for
transmission of the TTL square-wave
signals to the subsequent electronics
depends on the edge separation a. It is at
most 100 m, or 50 m for the fault detection
signal. This requires, however, that the
power supply (see Specifications) be
ensured at the encoder. The sensor lines
can be used to measure the voltage at the
encoder and, if required, correct it with an
automatic control system (remote sense
power supply).
The edge separation can be set in stages
for adaptation to the subsequent electronics.
The maximum permissible input frequency
then changes correspondingly.
Permissible cable
length
with respect to the
edge separation
Cable length [m] f
Clocked EXE/IBV
For electronics with clocked output signals,
the clock frequency fT specifies the edge
separation, which in turn specifies the
maximum input frequency. This means that
the given values for the maximum input
frequency represent an absolute limit to
the correct operation. At reduced input
frequency the edge separation can be
increased provided that it remains an
integral multiple of amin.
Non-clocked EXE/IBV
For electronics without clocked output
signals, the minimum edge separation amin
that occurs at the maximum possible input
frequency is stated in the specifications.
If the input frequency is reduced, the edge
separation increases correspondingly.
Without ¥
With ¥
Edge separation [µs] f
Input circuitry of the
subsequent-electronics
Dimensioning
IC1 = Recommended differential line
receiver
DS 26 C 32 AT
Only for a > 0.1 µs:
AM 26 LS 32
MC 3486
SN 75 ALS 193
R1
R2
Z0
C1
Incremental signals
Reference-mark
signal
Encoder
Subsequent electronics
Fault-detection
signal
= 4.7 k−
= 1.8 k−
= 120 −
= 220 pF (serves to improve noise
immunity)
9
Interfaces
Absolute Position Values
For more information, refer to the
EnDat Technical Information sheet or visit
www.endat.de.
Position values can be transmitted with or
without additional information (e.g. position
value 2, temperature sensors, diagnostics,
limit position signals). Besides the position,
additional information can be interrogated
in the closed loop and functions can be
performed with the EnDat 2.2 interface.
Parameters are saved in various memory
areas, e.g.
• Encoder-specific information
• Information of the OEM (e.g. “electronic
ID label” of the motor)
• Operating parameters (datum shift,
instructions, etc.)
• Operating status (alarm or warning
messages)
Interface
EnDat serial bidirectional
Data transfer
Absolute position values, parameters and additional information
Data input
Differential line receiver according to EIA standard RS 485 for the
signals CLOCK, CLOCK, DATA and DATA
Data output
Differential line driver according to EIA standard RS 485 for the
signals DATA and DATA
Position values
Ascending during traverse in direction of arrow (see dimensions
of the encoders)
Incremental signals
» 1 VPP (see Incremental Signals 1 VPP) depending on the unit
Ordering
designation
Command set
Incremental
signals
Power supply
EnDat 01
EnDat 2.1
or EnDat 2.2
With
See specifications of
the encoder
EnDat 21
Without
EnDat 02
EnDat 2.2
With
EnDat 22
EnDat 2.2
Without
Versions of the EnDat interface (bold print indicates standard versions)
Absolute encoder
» 1 VPP A*)
Absolute
position value
Operating
parameters
Operating
status
» 1 VPP B*)
*) Depends on
encoder
Parameters of the encoder
Parameters manufacturer for
of the OEM
EnDat 2.1
EnDat 2.2
Cable length [m]f
Clock frequency and cable length
The clock frequency is variable—depending
on the cable length—between 100 kHz
and 2 MHz. With propagation-delay
compensation in the subsequent electronics,
clock frequencies up to 16 MHz at cable
lengths up to 100 m are possible.
Subsequent electronics
Incremental
signals *)
Monitoring and diagnostic functions of
the EnDat interface make a detailed
inspection of the encoder possible.
• Error messages
• Warnings
• Online diagnostics based on valuation
numbers (EnDat 2.2)
Incremental signals
EnDat encoders are available with or
without incremental signals. EnDat 21 and
EnDat 22 encoders feature a high internal
resolution. An evaluation of the incremental
signal is therefore unnecessary.
Expanded range
3.6 to 5.25 V
or 14 V
EnDat interface
The EnDat interface is a digital,
bidirectional interface for encoders. It is
capable both of transmitting position
values as well as transmitting or updating
information stored in the encoder, or saving
new information. Thanks to the serial
transmission method, only four signal
lines are required. The data is transmitted
in synchronism with the clock signal from
the subsequent electronics. The type of
transmission (position values, parameters,
diagnostics, etc.) is selected through mode
commands that the subsequent
electronics send to the encoder. Some
functions are available only with EnDat 2.2
mode commands.
300
2 000
4 000
8 000
12 000
16 000
Clock frequency [kHz]f
EnDat 2.1; EnDat 2.2 without propagation-delay compensation
EnDat 2.2 with propagation-delay compensation
10
Input circuitry of the subsequent
electronics
Encoder
Data transfer
Subsequent electronics
Dimensioning
IC1 = RS 485 differential line receiver and
driver
C3 = 330 pF
Z0 = 120 −
Incremental signals
depending on
encoder
1 VPP
Pin layout
8-pin M12 coupling
Power supply
Absolute position values
8
2
5
1
3
4
7
6
UP
Sensor UP
0V
Sensor 0 V
DATA
DATA
CLOCK
CLOCK
Brown/Green
Blue
White/Green
White
Gray
Pink
Violet
Yellow
15-pin D-sub connector
For HEIDENHAIN controls and IK 220
17-pin M23 coupling
Incremental signals1)
Power supply
Absolute position values
7
1
10
4
11
15
16
12
13
14
17
8
9
1
9
2
11
13
3
4
6
7
5
8
14
15
UP
Sensor
UP
0V
A+
A–
B+
B–
DATA
DATA
Brown/
Green
Blue
White/
Green
Green/
Black
Yellow/
Black
Blue/
Black
Red/
Black
Gray
Pink
Sensor Internal
0V
shield
White
/
CLOCK CLOCK
Violet
Yellow
Cable shield connected to housing; UP = power supply voltage
Sensor: The sensor line is connected in the encoder with the corresponding power line.
Vacant pins or wires must not be used!
1)
Only with ordering designations EnDat 01 and EnDat 02
11
General Electrical Information
Power supply
Connect HEIDENHAIN encoders only to
subsequent electronics whose power
supply is generated from PELV systems
(EN 50 178). In addition, overcurrent
protection and overvoltage protection are
required in safety-related applications.
If HEIDENHAIN encoders are to be
operated in accordance with IEC 61010-1,
power must be supplied from a secondary
circuit with current or power limitation as
per IEC 61010-1:2001, section 9.3 or
IEC 60950-1:2005, section 2.5 or a Class 2
secondary circuit as specified in UL1310.
The encoders require a stabilized DC
voltage UP as power supply. The respective
Specifications state the required power
supply and the current consumption. The
permissible ripple content of the DC
voltage is:
• High frequency interference
UPP < 250 mV with dU/dt > 5 V/µs
• Low frequency fundamental ripple
UPP < 100 mV
If the voltage drop is known, all parameters
for the encoder and subsequent electronics
can be calculated, e.g. voltage at the
encoder, current requirements and power
consumption of the encoder, as well as the
power to be provided by the subsequent
electronics.
Switch-on/off behavior of the encoders
The output signals are valid no sooner than
after switch-on time tSOT = 1.3 s (2 s for
PROFIBUS-DP) (see diagram). During time
tSOT they can have any levels up to 5.5 V
(with HTL encoders up to UPmax). If an
interpolation electronics unit is inserted
between the encoder and the power
supply, this unit’s switch-on/off characteristics
must also be considered. If the power
supply is switched off, or when the supply
voltage falls below Umin, the output signals
are also invalid. During restart, the signal
level must remain below 1 V for the time
tSOT before power up. These data apply to
the encoders listed in the catalog—
customer-specific interfaces are not
included.
Encoders with new features and increased
performance range may take longer to
switch on (longer time tSOT). If you are
responsible for developing subsequent
electronics, please contact HEIDENHAIN
in good time.
Isolation
The encoder housings are isolated against
internal circuits.
Rated surge voltage: 500 V
(preferred value as per VDE 0110 Part 1,
overvoltage category II, contamination
level 2)
Transient response of supply voltage and switch-on/switch-off behavior
The values apply as measured at the
encoder, i.e., without cable influences. The
voltage can be monitored and adjusted
with the encoder’s sensor lines. If a
controllable power supply is not available,
the voltage drop can be halved by
switching the sensor lines parallel to the
corresponding power lines.
UPP
Calculation of the voltage drop:
¹U = 2 · 10–3 ·
where
¹U: Voltage attenuation in V
1.05: Length factor due to
twisted wires
LC: Cable length in m
I:
Current consumption in mA
AP: Cross section of power lines
in mm2
The voltage actually applied to the encoder
is to be considered when calculating the
encoder’s power requirement. This
voltage consists of the supply voltage UP
provided by the subsequent electronics
minus the line drop at the encoder. For
encoders with an expanded supply range,
the voltage drop in the power lines must
be calculated under consideration of the
nonlinear current consumption (see next
page).
12
Output signals invalid
1.05 · LK · I
56 · AP
Cable
Valid
Invalid
Cross section of power supply lines AP
1 VPP/TTL/HTL
5)
11 µAPP
EnDat/SSI
17-pin
EnDat
8-pin
2
–
–
0.09 mm2
2
–
–
¬ 3.7 mm
0.05 mm
¬ 4.3 mm
0.24 mm
2
–
–
2
0.05 mm
0.09 mm2
¬ 4.5 mm EPG
0.05 mm
¬ 4.5 mm
¬ 5.1 mm
0.14/0.09 mm
0.052), 3) mm2
0.05 mm2
0.05 mm2
0.14 mm2
¬ 6 mm
¬ 10 mm1)
0.19/0.142), 4) mm2
–
0.08 mm2
0.34 mm2
¬ 8 mm
¬ 14 mm1)
0.5 mm2
1 mm2
0.5 mm2
1 mm2
1)
5)
2)
2
2)
Metal armor
Rotary encoders
Also Fanuc, Mitsubishi
3)
Length gauges
4)
LIDA 400
Encoders with expanded voltage
supply range
For encoders with expanded supply
voltage range, the current consumption
has a nonlinear relationship with the supply
voltage. On the other hand, the power
consumption follows a linear curve (see
Current and power consumption diagram).
The maximum power consumption at
minimum and maximum supply voltage is
listed in the Specifications. The power
consumption at maximum supply voltage
(worst case) accounts for:
• Recommended receiver circuit
• Cable length: 1 m
• Age and temperature influences
• Proper use of the encoder with respect
to clock frequency and cycle time
Step 1: Resistance of the supply lines
The resistance values of the power lines
(adapter cable and encoder cable) can be
calculated with the following formula:
RL = 2 ·
Current requirement of encoder:
IE = ¹U / RL
1.05 · LK · I
56 · AP
Step 2: Coefficients for calculation of
the drop in line voltage
P
– PEmin
b = –RL · Emax
– UP
UEmax – UEmin
c = PEmin · RL +
Step 4: Parameters for subsequent
electronics and the encoder
Voltage at encoder:
UM = UP – ¹U
Power consumption of encoder:
PE = UE · IE
Power output of subsequent electronics:
PS = UP · IE
PEmax – PEmin
· RL · (UP – UEmin)
UEmax – UEmin
Step 3: Voltage drop based on the
coefficients b and c
The typical current consumption at no load
(only supply voltage is connected) for 5 V
supply is specified.
¹U = –0.5 · (b + ¹b2 – 4 · c)
The actual power consumption of the
encoder and the required power output of
the subsequent electronics are measured
while taking the voltage drop on the supply
lines in four steps:
Where:
UEmax,
UEmin: Minimum or maximum supply
voltage of the encoder in V
PEmin,
PEmax: Maximum power consumption at
minimum or maximum power
supply, respectively, in W
US:
Supply voltage of the subsequent
electronics in V
¹U:
1.05:
LC:
AP:
Cable resistance (for both
directions) in ohms
Voltage drop in the cable in V
Length factor due to twisted wires
Cable length in m
Cross section of power lines
in mm2
Current and power consumption with respect to the supply voltage
(example representation)
Power consumption or current
requirement (normalized)
Power output of subsequent
electronics (normalized)
Influence of cable length on the power output of the subsequent
electronics (example representation)
RL:
Supply voltage [V]
Encoder cable/adapter cable
Connecting cable
Total
Supply voltage [V]
Power consumption of encoder
(normalized to value at 5 V)
Current requirement of encoder
(normalized to value at 5 V)
13
Electrically Permissible Speed/
Traversing Speed
The maximum permissible shaft speed or
traversing velocity of an encoder is derived
from
• the mechanically permissible shaft
speed/traversing velocity (if listed in the
Specifications)
and
• the electrically permissible shaft speed/
traversing velocity.
For encoders with sinusoidal output
signals, the electrically permissible shaft
speed/traversing velocity is limited by the
–3dB/ –6dB cutoff frequency or the
permissible input frequency of the
subsequent electronics.
For encoders with square-wave signals,
the electrically permissible shaft speed/
traversing velocity is limited by
– the maximum permissible scanning
frequency fmax of the encoder
and
– the minimum permissible edge
separation a for the subsequent
electronics.
For angular or rotary encoders
nmax =
fmax
· 60 · 103
z
For linear encoders
vmax = fmax · SP · 60 · 10–3
Where:
nmax: Elec. permissible speed in min–1
vmax: Elec. permissible traversing
velocity in m/min
fmax: Max. scanning/output frequency of
encoder or input frequency of
subsequent electronics in kHz
z:
Line count of the angle or rotary
encoder per 360 °
SP: Signal period of the linear encoder
in µm
Cable
For safety-related applications, use
HEIDENHAIN cables and connectors.
Versions
The cables of almost all HEIDENHAIN
encoders and all adapter and connecting
cables are sheathed in polyurethane
(PUR cable). Most adapter cables for
within motors and a few cables on
encoders are sheathed in a special
elastomer (EPG cable). These cables are
identified in the specifications or in the
cable tables with “EPG.”
Durability
PUR cables are resistant to oil and
hydrolysis in accordance with VDE 0472
(Part 803/test type B) and resistant to
microbes in accordance with VDE 0282
(Part 10). They are free of PVC and silicone
and comply with UL safety directives. The
UL certification AWM STYLE 20963 80 °C
30 V E63216 is documented on the cable.
EPG cables are resistant to oil in
accordance with VDE 0472 (Part 803/test
type B) and to hydrolysis in accordance
with VDE 0282 (Part 10). They are free of
silicone and halogens. In comparison with
PUR cables, they are only conditionally
resistant to media, frequent flexing and
continuous torsion.
Cable
Frequent flexing
Frequent flexing
Temperature range
HEIDENHAIN cables can be used for
Rigid configuration (PUR) –40 to 80 °C
Rigid configuration (EPG)
–40 to 120 °C
Frequent flexing (PUR)
–10 to 80 °C
PUR cables with limited resistance to
hydrolysis and microbes are rated for up to
100 °C. If needed, please ask for
assistance from HEIDENHAIN Traunreut.
Lengths
The cable lengths listed in the Specifications
apply only for HEIDENHAIN cables and the
recommended input circuitry of subsequent
electronics.
Bend radius R
Rigid configuration
Frequent flexing
¬ 3.7 mm
‡
8 mm
‡
40 mm
¬ 4.3 mm
‡
10 mm
‡
50 mm
¬ 4.5 mm EPG
‡
18 mm
–
¬ 4.5 mm
¬ 5.1 mm
‡
10 mm
‡
50 mm
¬ 6 mm
1)
¬ 10 mm
‡
‡
20 mm
35 mm
‡
‡
75 mm
75 mm
¬ 8 mm
¬ 14 mm1)
‡ 40 mm
‡ 100 mm
1)
14
Rigid configuration
Metal armor
‡ 100 mm
‡ 100 mm
Noise-Free Signal Transmission
Electromagnetic compatibility/
CE compliance
When properly installed, and when
HEIDENHAIN connecting cables and cable
assemblies are used, HEIDENHAIN
encoders fulfill the requirements for
electromagnetic compatibility according to
2004/108/EC with respect to the generic
standards for:
• Noise EN 61 000-6-2:
Specifically:
– ESD
EN 61 000-4-2
– Electromagnetic fields EN 61 000-4-3
– Burst
EN 61 000-4-4
– Surge
EN 61 000-4-5
– Conducted disturbances EN 61 000-4-6
– Power frequency
magnetic fields
EN 61 000-4-8
– Pulse magnetic fields EN 61 000-4-9
• Interference EN 61 000-6-4:
Specifically:
– For industrial, scientific and medical
equipment (ISM)
EN 55 011
– For information technology
equipment
EN 55 022
Transmission of measuring signals—
electrical noise immunity
Noise voltages arise mainly through
capacitive or inductive transfer. Electrical
noise can be introduced into the system
over signal lines and input or output
terminals.
Possible sources of noise include:
• Strong magnetic fields from transformers,
brakes and electric motors
• Relays, contactors and solenoid valves
• High-frequency equipment, pulse
devices, and stray magnetic fields from
switch-mode power supplies
• AC power lines and supply lines to the
above devices
Protection against electrical noise
The following measures must be taken to
ensure disturbance-free operation:
• Use only original HEIDENHAIN cables.
Consider the voltage attenuation on
supply lines.
• Use connecting elements (such as
connectors or terminal boxes) with metal
housings. Only the signals and power
supply of the connected encoder may
be routed through these elements.
Applications in which additional signals
are sent through the connecting element
require specific measures regarding
electrical safety and EMC.
• Connect the housings of the encoder,
connecting elements and subsequent
electronics through the shield of the cable.
Ensure that the shield has complete
contact over the entire surface (360°).
For encoders with more than one electrical
connection, refer to the documentation
for the respective product.
• For cables with multiple shields, the
inner shields must be routed separately
from the outer shield. Connect the inner
shield to 0 V of the subsequent electronics.
Do not connect the inner shields with
the outer shield, neither in the encoder
nor in the cable.
• Connect the shield to protective ground
as per the mounting instructions.
• Prevent contact of the shield (e.g.
connector housing) with other metal
surfaces. Pay attention to this when
installing cables.
• Do not install signal cables in the direct
vicinity of interference sources (inductive
consumers such as contacts, motors,
frequency inverters, solenoids, etc.).
– Sufficient decoupling from
interference-signal-conducting cables
can usually be achieved by an air
clearance of 100 mm or, when cables
are in metal ducts, by a grounded
partition.
– A minimum spacing of 200 mm to
inductors in switch-mode power
supplies is required.
• If compensating currents are to be
expected within the overall system, a
separate equipotential bonding conductor
must be provided. The shield does not
have the function of an equipotential
bonding conductor.
• Only provide power from PELV systems
(EN 50 178) to position encoders. Provide
high-frequency grounding with low
impedance (EN 60 204-1 Chap. EMC).
• For encoders with 11 µAPP interface:
For extension cables, use only
HEIDENHAIN cable ID 244 955-01.
Overall length: max. 30 m.
Minimum distance from sources of interference
15
For More Information
For more detailed information, mounting
instructions, technical specifications and
exact dimensions, as well as descriptions
of interfaces, please refer to our brochures
and Product Information data sheets, or visit
us on the Internet at www.heidenhain.de.
Product Information
IDP 100 Series
Product Information
IBV 100 Series
Produktinformation
Baureihe IBV 100
Interpolations- und
Digitalisierungs-Elektroniken
Contents:
IBV 101
IBV 102
April 2007
Produktinformation
Baureihe IDP 100
Interpolations- und
Digitalisierungselektroniken
Februar 2006
Product Information
ExN 100 series
Produktinformation
Baureihe EXE 100
Interpolations- und
Digitalisierungs-Elektroniken
Contents:
EXE 101
EXE 102
April 2007
Baureihe IBV 600
Interpolations- und
Digitalisierungs-Elektroniken
September 2006
Baureihe EXE 600
Interpolations- und
Digitalisierungs-Elektroniken
Contents:
EXE 602 E
EXE 660 B
September 2006
DR. JOHANNES HEIDENHAIN GmbH
Dr.-Johannes-Heidenhain-Straße 5
83301 Traunreut, Germany
{ +49 8669 31-0
| +49 8669 5061
E-mail: info@heidenhain.de
www.heidenhain.de
598 160-23 · 10 · 9/2010 · F&W · Printed in Germany
Product Information
EIB 392
Produktinformation
Produktinformation
IK 220
EIB 392
Anpasselektronik in
Kabelausführung
Interpolations- und
Zählerplatine
Juni 2007
Product Information
APE 371
Product Information
EIB 741
Produktinformation
Produktinformation
APE 371
EIB 741
Interpolations- und
Digitalisierungselektronik
Externe Interface-Box
Juli 2006
März 2010
Product Information
Gateway
Product Information
ExN 600 series
Produktinformation
EIB 192
Externe Interface-Box
September 2005
6/2005
Contents:
IBV 600
IBV 606
IBV 660 B
Produktinformation
Product Information
IK 220
Product Information
IBV 600 Series
Produktinformation
Contents:
IDP 101
IDP 181
IDP 182
Product Information
EIB 192
Produktinformation
Gateway
Zum Anschluss von EnDatMessgeräten an PROFIBUS-DP
Juli 2010
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