Motrona SV 210 User manual

control – motion – interface
motrona GmbH
Zwischen den Wegen 32
78239 Rielasingen - Germany
Tel. [phone]
Fax [phone]
[email protected]
www.motrona.com
SV21001a_e.doc / Jul-10 Page 1 / 11
SV 210
Signal Splitter and Incremental Converter for
Sine-Cosine Encoders
Input:
sin / cos 1 Vpp
Out 1
sin / cos 1Vpp
Out 3
sin / cos 1Vpp
Out 2
incremental
A, /A, B, /B, Z, /Z
5 - 30 V
Out 4
incremental
A, /A, B, /B, Z, /Z
5 - 30 V
SV 210
•Encoder inputs sin+, sin-, cos+, cos-, ref+, ref- with 1 Vpp format
•Two sine-cosine output channels with the same signal format
•Two incremental outputs, each with differential signal format A, /A, B, /B, Z, /Z ,
individually adjustable to either TTL/RS422 level or HTL (10-30 V) level
•Suitable for input frequencies up to 500 kHz
•17 - 30 VDC power supply and auxiliary output 5 V or 24 V for encoder supply
Operating Instructions

SV21001a_e.doc / Jul-10 Page 2 / 11
Safety Instructions
•This manual is an essential part of the unit and contains important hints about
function, correct handling and commissioning. Non-observance can result in
damage to the unit or the machine or even in injury to persons using the
equipment!
•The unit must only be installed, connected and activated by a qualified electrician
•It is a must to observe all general and also all country-specific and application-
specific safety standards
•When this unit is used with applications where failure or maloperation could cause
damage to a machine or hazard to the operating staff, it is indispensable to meet
effective precautions in order to avoid such consequences
•Regarding installation, wiring, environmental conditions, screening of cables and
earthing, you must follow the general standards of industrial automation industry
•- Errors and omissions excepted –
General instructions for cabling, screening and grounding can be found in the
SUPPORT section of our website http://www.motrona.com
Version: Description:
SV21001a_July 2010/af/hk First edition

SV21001a_e.doc / Jul-10 Page 3 / 11
Table of Contents
1. Application......................................................................................................4
2. Connection Diagram .......................................................................................6
2.1. Power Supply (X6) ....................................................................................................6
2.2. Connection of the Sine-Cosine Encoder (X5) ...........................................................7
2.3. The Sine-Cosine Outputs (X1 und X3) ......................................................................7
2.4. The Incremental Outputs (X2 und X4) ......................................................................8
3. The Front LEDs ................................................................................................9
4. Dimensions ...................................................................................................10
5. Technical Specifications...............................................................................11

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1. Application
The SV 210 encoder splitter has been designed for clean and trouble-free distribution of the
output signals of sine-cosine type encoders to several target units. Since on the output site the
unit provides both, sine-cosine outputs and incremental outputs, it is suitable for use with
target units with either sine or incremental inputs.
On both sine output channels the same signal format is available as on the input site, including
a reference impulse (if available on the input site). All sine-cosine signals use the differential
1 Vpp format which is most common with industrial sine-cosine encoders.
Current signals according to the 11 μA standard are not supported by this unit.
The two incremental output channels at the same time supply square wave signals, namely one
impulse per each sine period and one index pulse per each reference signal on the input side.
At any time the differential signals A, /A, B, /B, Z /Z are available and the output level is
settable to either TTL (5 V) or HTL (10 - 30 V) level, separately for each output channel.
The diagram below explains the correlation between sine signals and incremental signals.
sin+
cos+
A
/
A
B
/
B
sin-
cos-
For interpolation of the sine waves to a higher number of incremental impulses
(e.g. 50 increments per sine period) please refer to our Sine-Cosine Interpolator type SI251

SV21001a_e.doc / Jul-10 Page 5 / 11
Typical application example of the SV 210 signal splitter:
Motorwith sin-cos encoder
Speed feedback (sin-cos)
Servodrive
Controlunit
sin-cos
Counter
A / B
Follower drive
A, /A, B, /B
(HTL)
(TTL)

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2. Connection Diagram
For wiring of the sinusoidal signals the unit provides 3 Sub-D-9 connectors (X1, X3, and X5).
For all other connections 3 screw terminal strips are available (X2, X4, and X6).
LEDs
123456789
Z Z
B
B
A
A
GND
987654321
321
GND
X5
X4
X2
X1
X3
Screw terminal strip 9-pos.
Screw terminal strip 9-pos.
Sub-D-9male
Sub-D-9 female
Sub-D-9 female
X6
+24 VDC
Aux.encoder supply
Input:
Connector for
sin-cos encoder
Output 1
(sin-cos 1 Vpp)
Output 3
(sin-cos 1 Vpp)
Com+(5-30V)
Screen
Z Z
B
B
A
A
GND
Com+(5-30V)
Screen
Output 2
(incremental)
Output 4
(incremental)
Green LED: ON
Yellow LED: Input signal
2.1. Power Supply (X6)
The unit operates from a DC power from 17 to 30 volts which must be applied to the front
terminals X6/1 (-) and X6/2 (+).
With unloaded state the current consumption is about 70 mA (encoder supply line and output
channels unconnected).
Terminal X6/3 selects the level of the auxiliary encoder supply output (5 V or 24 V). More
details are explained under section 2.2 (Encoder connection).

SV21001a_e.doc / Jul-10 Page 7 / 11
2.2. Connection of the Sine-Cosine Encoder (X5)
The encoder can be connected via the front Sub-D-9 connector marked X5 (male connector on
unit side, female connector on the encoder cable). Only encoders with differential sine-cosine
signals of 1 Vpp can be used (0.8 Vpp - 1.2 Vpp). At any time the signals sin+/sin- and cos+/cos-
must be available. Where an additional reference marker pulse is used, also the signals
ref+/ref- must be applied.
Pins 4 (+) and 5(-) of the Sub-D-connector provide an auxiliary power output for the encoder
supply. When terminal 3 of the front X6 connector is unconnected, the aux. output voltage is
automatically about 5.2 volts (max. 150 mA). Where the encoder requires another supply
voltage (e.g. 24 volts), an appropriate voltage can be applied remotely to terminal X6/3.
Please note that the metallic housing of the Sub-D input connector is internally connected to
the common GND potential of the unit.
cos+ sin- sin+
GND
ref- ref+ cos-
12345
9867
(nc)
123
X6
GND
+24 V
V
encoder
+5,2 V (Vcc int.)
X5
*)
*)
Sub-D-9 male
*) All differential lines (sin+/sin-, cos+/cos-, ref+/ref-) are internally terminated
by 120 ohms load resistors
2.3. The Sine-Cosine Outputs (X1 und X3)
These two Sub-D-outputs provide an image of the sine-cosine input signals, however with a
fixed offset voltage of 2.5 volts with respect to GND. This allows a clean and trouble-free
distribution of the input signal to two target units.
cos+
sin-sin+
GND
ref-
ref+
cos-
123
4
59867
(nc)
(nc)
X1 / X3
Sub-D-9 female
•It is mandatory to use cables with pairwise twisted wires for all sinusoidal signals
sin+/sin-, cos+/cos- and ref+/ref-.
•For trouble-free signal transmission the target unit must provide terminating resistors
at the end of the signal line (in each case 120 ohms between signal+ and signal-)
•Since on the inputs the unit already uses in-built termination resistors, no further
measures must be taken on the encoder side.

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2.4. The Incremental Outputs (X2 und X4)
On the terminal strips X2 and X4 the encoder information is available with a differential square
wave format. All incremental outputs use push-pull drivers. When position 2 (Com+) of the
corresponding terminal strip is unconnected, the output level is automatically adapted to
TTL / RS422 format. As soon as terminal position 2 receives any external voltage >5.5 volts,
automatically this voltage will determine the output swing. Consequently each of the two
incremental outputs can operate with its own specific TTL or HTL level.
123456789
GND
+5,2 V (Vcc int.) GND
A/A B/B Z/ZCom+GND (Screen)
Sub-D-9
X2 / X4
X3
Positions 9 of the terminal strips X2 and X4 are in each case galvanically connected to the
metal housing of the adjacent Sub-D connector (located on the same side of the housing)
It is recommendable to connect the cable shield directly to the metal housing of the
associated counterpart connector, and to wire terminal position 9 to earth or ground
potential. This ensures that the cable shield is earthed / grounded correctly.

SV21001a_e.doc / Jul-10 Page 9 / 11
3. The Front LEDs
The green LED is lit whenever the power supply of the unit is on.
The yellow Led indicates the presence of encoder input signals. With slow motion, the LED will
blink with every input impulse. With higher speeds the blinking will pass over into a continuous
glowing with reduced brightness.

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4. Dimensions
102 (4.016”)
91 (3.583”)
82.5(3.248”) 102(4.016”)
22.5
(0.886”)
Side view
Top view
Front view

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5. Technical Specifications
Power supply Vin : 17 V - 30 VDC
Supply current : approx. 70 mA (unloaded)
Aux. encoder power output : 5,2V / 150 mA
(or according to remote feed-in)
Max. frequency : 500 kHz
Signal inputs :
(Terminating resistors 3 x 120 ohms inbuilt)
6 symmetric differential sin/cos - inputs
(sin+, sin-, cos+, cos-, ref+, ref-),
Signal level 0,8 Vpp - 1,2 Vpp,
Signal offset approx. 2 - 3 V to GND
Signal outputs sin-cos :
(Termination resistors must be available
on the target unit side)
2 x 6 symmetric differential outputs
(each time sin+, sin-, cos+, cos-, ref+, ref-),
Signal level 0,8 Vpp - 1,2 Vpp,
Signal offset 2,5 V to GND
Square wave outputs : 2 x 6 incremental push-pull outputs
(each time A, /A, B, /B, Z, /Z ),
Output level individually adaptable to
TTL (5 V) or HTL (max. 30 V)),
max. 30 mA per channel (short-circuit proof)
Propagation delay time : approx. 200 nsec.
Ambient temperature : Operation: 0° - +45° C (+32° - +113° F)
Storage: -25° - +70° C (-13° - +158° F)
Weight : approx. 100 g
Conformity and standards : EMC 2004/108/EC: EN 61000-6-2
EN 61000-6-3