Motrona GV224 User manual

Operating Manual
motrona GmbH, Zeppelinstraße 16, DE - 78244 Gottmadingen, Tel. [phone], Fax [phone], [email protected], www.motrona.com
GV224 / GV228
GT222 / GT224 / GT228
Pulse splitters for incremental encoders with and without potential separation
Product features:
•Power supply from 10 up to 30 VDC
•1 encoder input for channels A, /A, B, /B, Z, /Z
•Input levels selectable between RS422, TTL and HTL
•Optionally types with 2, 4 or 8 outputs with or without potential separation available (see below)
•Output levels are specified by external power supply
•Short-circuit proof +5VDC and +24VDC encoder supply
Available devices:
•GV224: Pulse splitter with 1 encoder input and 4 outputs
•GV228: Pulse splitter with 1 encoder input and 8 outputs
•GV228/EV: Pulse splitter with 1 encoder input and 8 outputs
with extension option for 4 or 8 outputs (EV224 / EV228)
•GT222: Pulse splitter with 1 encoder input and 2 potential separated outputs
•GT224: Pulse splitter with 1 encoder input and 4 potential separated outputs
•GT228: Pulse splitter with 1 encoder input and 8 potential separated outputs
•GT228/ET: Pulse splitter with 1 encoder input and 8 potential separated outputs
with extension option for 4 or 8 potential separated outputs (ET224 / ET228)

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Die deutsche Beschreibung ist verfügbar unter:
https://www.motrona.com/fileadmin/files/bedienungsanleitungen/Gv224_d.pdf
The English description is available at:
https://www.motrona.com/fileadmin/files/bedienungsanleitungen/Gv224_e.pdf
La description en français est disponible sur:
https://www.motrona.com/fileadmin/files/bedienungsanleitungen/Gv224_f.pdf
Version:
Description:
GV224_01a/March 22/tgo/mbo
First edition GV22x / GT22x
Legal notices:
All contents included in this manual are protected by the terms of use and copyrights of motrona GmbH.
Any reproduction, modification, usage or publication in other electronic and printed media as well as in
the internet requires prior written authorization by motrona GmbH.

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Table of Contents
1. Safety Instructions and Responsibility 4
1.1. General Safety Instructions 4
1.2. Use according to the intended purpose 4
1.3. Installation 5
1.4. EMC Guidelines 6
1.5. Cleaning, Maintenance and Service Notes 6
2. Compatibility Hint 7
3. Introduction and Block Diagram 9
3.1. Block diagram GV224 und GV228 10
3.2. Block diagram GT222 / GT224 und GT228 10
4. Electrical Connections und LED Function 11
4.1. Power Supply and LEDs 11
4.2. Auxiliary Encoder Supply 11
4.3. Impuls Inputs 12
4.3.1. Encoders with differential output (Output level: HTL Differential / 10 - 30 V) 12
4.3.2. Encoders with differential output (Output level: RS422/ 5V) 12
4.3.3. Encoders with single-ended output, without inverted signals (Output level: HTL) 12
4.3.4. Encoders with single-ended output, without inverted signals (Output level: TTL) 12
4.4. Impuls Outputs 13
4.5. Error Evaluation 13
5. Technical Specifications 14
6. Dimensions 16

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1.Safety Instructions and Responsibility
1.1. General Safety Instructions
This operation manual is a significant component of the unit and includes important rules and
hints about the installation, function and usage. Non-observance can result in damage and/or
impairment of the functions to the unit or the machine or even in injury to persons using the
equipment!
Please read the following instructions carefully before operating the device and observe all
safety and warning instructions! Keep the manual for later use.
A pertinent qualification of the respective staff is a fundamental requirement in order to use
these manual. The unit must be installed, connected and put into operation by a qualified
electrician.
Liability exclusion: The manufacturer is not liable for personal injury and/or damage to property
and for consequential damage, due to incorrect handling, installation and operation. Further
claims, due to errors in the operation manual as well as misinterpretations are excluded from
liability.
In addition the manufacturer reserve the right to modify the hardware, software or operation
manual at any time and without prior notice. Therefore, there might be minor differences
between the unit and the descriptions in operation manual.
The raiser respectively positioner is exclusively responsible for the safety of the system and
equipment where the unit will be integrated.
During installation or maintenance all general and also all country- and application-specific
safety rules and standards must be observed.
If the device is used in processes, where a failure or faulty operation could damage the system
or injure persons, appropriate precautions to avoid such consequences must be taken.
1.2. Use according to the intended purpose
The unit is intended exclusively for use in industrial machines, constructions and systems. Non-
conforming usage does not correspond to the provisions and lies within the sole responsibility
of the user. The manufacturer is not liable for damages which has arisen through unsuitable
and improper use.
Please note that device may only be installed in proper form and used in a technically perfect
condition - in accordance to the Technical Specifications (see chapter 5). The device is not
suitable for operation in explosion-proof areas or areas which are excluded by the EN 61010-1
standard.

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1.3. Installation
The device is only allowed to be installed and operated within the permissible temperature
range. Please ensure an adequate ventilation and avoid all direct contact between the device
and hot or aggressive gases and liquids.
Before installation or maintenance, the unit must be disconnected from all voltage-sources.
Further it must be ensured that no danger can arise by touching the disconnected voltage-
sources.
Devices which are supplied by AC-voltages, must be connected exclusively by switches,
respectively circuit-breakers with the low voltage network. The switch or circuit-breaker must
be placed as near as possible to the device and further indicated as separator.
Incoming as well as outgoing wires and wires for extra low voltages (ELV) must be separated
from dangerous electrical cables (SELV circuits) by using a double resp. increased isolation.
All selected wires and isolations must be conform to the provided voltage- and temperature-
ranges. Further all country- and application-specific standards, which are relevant for structure,
form and quality of the wires, must be ensured. Indications about the permissible wire cross-
sections for wiring are described in the Technical Specifications (see chapter 5).
Before first start-up it must be ensured that all connections and wires are firmly seated and
secured in the screw terminals. All (inclusively unused) terminals must be fastened by turning
the relevant screws clockwise up to the stop.
Overvoltages at the connections must be limited to values in accordance to the overvoltage
category II.

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1.4. EMC Guidelines
All motrona devices are designed to provide high protection against electromagnetic interference.
Nevertheless you must minimize the influence of electromagnetic noise to the device and all
connected cables.
Therefore the following measures are mandatory for a successful installation and operation:
•Use shielded cables for all signal and control input and output lines.
•Cables for digital controls (digital I/O, relay outputs) must not exceed a length of 30 m and
are allowed for in building operation only
•Use shield connection clamps to connect the cable shields properly to earth
•The wiring of the common ground lines must be star-shaped and common ground must be
connected to earth at only one single point
•The device should be mounted in a metal enclosure with sufficient distance to sources of
electromagnetic noise.
•Run signal and control cables apart from power lines and other cables emitting
electromagnetic noise.
Please also refer to motrona manual “General Rules for Cabling, Grounding, Cabinet Assembly”.
You can download that manual by the link
https://www.motrona.com/en/support/general-certificates.html
1.5. Cleaning, Maintenance and Service Notes
To clean the front of the unit please use only a slightly damp (not wet!), soft cloth. For the rear
no cleaning is necessary. For an unscheduled, individual cleaning of the rear the maintenance
staff or assembler is self-responsible.
During normal operation no maintenance is necessary. In case of unexpected problems, failures
or malfunctions the device must be shipped for back to the manufacturer for checking,
adjustment and reparation (if necessary). Unauthorized opening and repairing can have
negative effects or failures to the protection-measures of the unit.

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2.Compatibility Hint
The GV220 and GT220 series are the successor models of the GV460 and GV480 family of pulse
splitters, which have proven themselves thousand times.
The new pulse splitters are able to largely replace the previous models functionally. However,
there are minor differences in the wiring, the DIL switch setting and the potential separating.
The main differences between the new products and their previous models are listed below.
Differences of the GV220 and GT220 series compared to their previous models:
GV22x / GT22x
GV46x / GV48x
Incremental input:
Signal level:
Max. frequencies:
Possible configurations:
RS422 (TTL), HTL Differencial, HTL PNP
(asymmetrical) und TTL PNP
(asymmetrical)
The set signal level and the set signal
format at the input always applies to all
channels (A, B and Z) and cannot be set
individually.
RS422 / TTL:
Differential voltage > 0,5 V
HTL Differential:
Differential voltage > 2 V
HTL (asymmetrical):
LOW 0 … 6 V, HIGH 8 … 40 V
TTL (asymmetrical):
LOW < 0,8 V, HIGH >2,0 V
max. 1 MHz at RS422 / TTL
max. 500 kHz at HTL Differential
max. 250kHz at SE TTL / SE HTL
Possible configurations:
RS422 (TTL), HTL Differential, HTL
PNP (asymmetrical)
The desired signal level and the
desired signal format can be set
separately for all channels (A, B
and Z) using the corresponding DIL
switches.
RS422 / TTL:
Differential voltage > 0,5 V
HTL (symmetrical):
10 … 30V
HTL (asymmetrical):
LOW 0 … 10 V, HIGH 15 … 30 V
max. 500 kHz at RS422 / TTL
max. 200 kHz at HTL Differential
max. 200kHz at HTL (asymmetrical)
Encoder supply:
Output voltage: 5VDC / 24VDC
Output current: max. 500 mA / 250 mA
Output voltage: 5VDC
Output current: max. 200 mA
Incremental outputs:
Signal level:
Signal delay time:
GV22x / GT22X:
At terminal "ext. COM+" the desired
output voltage
(5V / 24V) must be supplied externally.
approx. 160 ns
GV460/GV461:
5,5V
(or applied voltage (5…30V)
at terminal „+Lev.“)
GV480/GV481:
5 … 30V
At terminal „+Lev.“ the desired
output voltage
(5V / 24V) must be supplied
externally.
approx. 400 ns

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Housing:
Dimensions (BxHxT):
GV224/GT222/GT224:
34 x 100 x 131 mm /
1,34 x 3,94 x 5,16 inches (w x h x d)
(without connectors)
34 x 118 x 140 mm /
1,34 x 4,65 x 5,51 inches (w x h x d)
(inclusive connectors)
Weigh: approx.. 160 g
Dimensions (BxHxT):
GV228/GT228:
54 x 100 x 131 mm /
2,13 x 3,94 x 5,16 inches (w x h x d)
(without connectors))
54 x 118 x 140 mm /
2,13 x 4,65 x 5,51 inches (w x h x d)
(inclusive connectors)
Weight: approx.. 240 g
Dimensions (BxHxT):
72 x 144 x 60,5 mm
2,86 x 4,89 x 2,38 inches (w x h x d)
(without connectors & mounting kit
72 x 144 x 90,5 mm /
2,83 x 5,67 x 2,38 inches (w x h x d)
(inclusive connectors & mounting kit)
Weight: approx.. 400 g
Device parameterization:
Over 3-position DIL switch
Über 8-position. DIL switch
electrical pin assignment:
Different pin assignments of input,
outputs and supply compared to
previous model series!
Different pin assignments of input,
outputs and supply compared to
successor model series!
Potential separation:
GT22x:
Potential separation between input and
all outputs, as well as all outputs
among each other.
No galvanic isolation between input
and the device supply.
GV46x:
Potential separation between input and
the outputs.
GV48x:
Complete electrical isolation between
input, all
outputs among each other and the device
supply.

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3.Introduction and Block Diagram
GV224 and GV228 as well as GT222, GT224 and GT228 represent a series of incremental
encoder splitters with a most compact, space-saving design and with most versatile technical
features. All models are fully identical except for the number of output channels and any
potential separation between input and output.
Models GT222, GT224 and GT228 have a potential separation between input and output circuit
as well as between the output circuits among each other. There is no galvanic separation
between input and device supply. This feature, in general, can be most advantageous with
impulse distribution among expanded production lines with adverse conditions of
EMC / grounding / potential shift.
The encoder input is switch-selectable for operation with either standard RS422 signals, with
differential TTL or HTL signals or with single-ended HTL encoder signals. All encoder outputs
provide push-pull drivers. The output level can be individually specified accordingly about an
external voltage.
The adjoining block diagrams clearly explain the principle of operation and the potential
conditions between all circuits. For simplification the illustrations show only two of the outputs,
since all other outputs are fully identical.
All units of this series provide an extended range of ambient temperatures for use under
difficult environmental conditions (see chapter 5“Technical Specifications”).

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3.1. Block diagram GV224 und GV228
3.2. Block diagram GT222 / GT224 und GT228

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4.Electrical Connections und LED Function
4.1. Power Supply and LEDs
The device is supplied with 10 to 30 VDC about the 2-pin screw terminal strip (X1) on the front
of the device. The current consumption is approx. 25 mA (no-load operation).
The upper LED (green) signals that power is applied to the unit.
The lower LED (yellow) signals a possible error (e.g. wire break) at the input channels A, /A, B,
/B and/or Z, /Z in case of differential input signals, switched on error evaluation (DIL 3 = ON)
and corresponding terminated wires.
More detailed information about the error evaluation can be found in the chapter "Error
evaluation".
4.2. Auxiliary Encoder Supply
The 9-pin input terminal on the front panel (X2) provides a short-circuit proof +5VDC and a
+24VDC encoder supply. There is no electrical separation between encoder supply and device
supply.

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4.3. Impuls Inputs
The encoder signal to be distributed is applied to the 9-pin input terminal on the front panel
(X2). The desired input level as well as the desired signal format of the pulse inputs can be set
accordingly at the front DIL switch and always apply to all channels A, B and Z. An individual
setting of the individual channels is not possible. The individual DIL switch positions and their
meaning are listed below.
4.3.1. Encoders with differential output (Output level: HTL Differential / 10 - 30 V)
DIL switch:
DIL1: OFF DIL2: OFF
4.3.2. Encoders with differential output (Output level: RS422/ 5V)
DIL switch:
DIL1: ON DIL2: OFF
4.3.3. Encoders with single-ended output, without inverted signals (Output level: HTL)
DIL switch:
DIL1: OFF DIL2: ON
4.3.4. Encoders with single-ended output, without inverted signals (Output level: TTL)
DIL switch:
DIL1: ON DIL2: ON
For differential input signals "HTL Differential" and "RS422", in addition to the
A, B and Z channels, the associated inverted channels /A, /B and /Z must also
always be connected to terminal X2. For single-channel "Single Ended HTL" or
"Single Ended TTL" signals only the used channels A, B and Z have to be
connected. The corresponding cross channels remain unoccupied in these two
cases.

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4.4. Impuls Outputs
All outputs provide the non-inverted and the inverted signals at any time, even when on the
input side the inverted signals are not available.
The potential situation between the outputs and other circuits is clearly explained by the block
diagrams in chapter 3.
An external voltage must be supplied to the respective output terminals (terminal ext. COM+) of
the outputs, which determines the level of the output signal *). The permitted output range is
from 5 to 30 volts and the signal levels will be approx. 0.7 volts less than the remote voltage
applied. All output lines are permanently short-circuit proof and the maximum output current is
30 mA per line.
The terminal assignment can be found in the block diagram and is also printed on the
connection sticker. All output terminal strips have the same codification, since it is fully
unimportant to which of the outputs a terminal strip is connected (only the external voltage
applied to the (ext. Com+) input of the mating connector is responsible for the output level).
*) For the types with potential separation (GT22x), in addition to "ext. COM+" and also
the corresponding "ext. GND" connection of the corresponding output must also be
connected. For the types without potential separation (GV22x) all "ext. GND's" of the
outputs are internally connected with the device supply - "GND".
4.5. Error Evaluation
With DIL switch 3 = ON the yellow error LED can be activated for differential input signals
(RS422 or HTL differential). This lights up as soon as one (or more) of the channels A, B and Z
detects an error between the lines (e.g. wire break). For this error detection, the individual
channels must be locked accordingly. (e.g. by means of 120 Ohm resistors)
If a channel (e.g. Z and /Z) is not used and consequently not connected and
the error evaluation has been activated by DIL 3, then depending on the
signal level set (TTL or HTL) the non-connected channel must be connected
accordingly to this signal level (5V for TTL or 24V for HTL) and the associated
non-connected inverted channel must be connected accordingly to GND.
Otherwise the error detection would always be triggered incorrectly due to
the non-connected channel.

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5.Technical Specifications
Technical Specifications
Power supply:
Input voltage:
Protection circuit:
Ripple:
Consumption:
Connections:
10 … 30 VDC
Reverse polarity protection
≤10 % at 24 VDC
approx. 25 mA, with an unloaded encoder supply
screw terminal, 1,5 mm² / AWG16
Encoder supply:
Output voltage 1:
Output current:
Output voltage 2:
Output current:
Protection:
Connections:
Further possibilities:
24 VDC (ca. 0,8 V less than supply voltage)
max. 250 mA, (galvanically connected with the power supply)
5 VDC
max. 500 mA, (galvanically connected with the power supply)
short circuit proof
screw terminal, 1,5 mm² / AWG16, 9-pin
a) Externally by a separate source
b) By the same source that supplies the splitter
(10…30V)
Incremental input:
Signal levels (selectable):
Channels:
Frequency:
Connections:
RS422 / TTL (differential voltage > 0,5 V),
HTL Differential (differential voltage > 2 V),
HTL (asymmetrical): LOW 0 … 6 V, HIGH 8 … 40 V
TTL (asymmetrical): LOW < 0,8 V, HIGH >2,0 V
asymmetrical: A, B, Z or symmetrical: A, /A, B, /B, Z, /Z
max. 1 MHz at RS422 / TTL
max. 500 kHz at HTL Differential
max. 250kHz at SE TTL / SE HTL
screw terminal, 1,5 mm² / AWG16
Incremental outputs:
Number of outputs:
Output logic:
Signal levels:
Signal delay time:
Output current:
Protection:
Connections:
2 (GT222), 4 (GT224/GV224)
resp. 8 (GT228/GV228),
push-pull
5 … 30 V
(can be supplied by respective ext. COM+ terminal)
approx. 160 ns
max. 30 mA
short-circuit proof
screw terminal, 1,5 mm² / AWG16
Potential separation:
GT222 / GT224
GT228
Potential separation between input and the outputs as well as
all outputs among each other.
Indicators:
Number of indicators:
Function:
2 LEDs
1 x green for “ready for operate” state
1 x yellow for error detection at the inputs A, B, Z

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Housing:
Material:
Mounting:
Dimensions (B x H x T):
Weight:
Dimensions (B x H x T):
Weight:
Protection:
plastic
mounting rail (EN 60715, 35mm C-Profile)
GV224/GT222/GT224:
34 x 100 x 131 mm / 1.34 x 3.94 x 5.16 inches (w x h x d)
(without connectors)
34 x 118 x 140 mm / 1.34 x 4.65 x 5.51 inches (w x h x d)
(inclusive connectors))
approx. 160 g
GV228/GT228:
54 x 100 x 131 mm / 2.13 x 3.94 x 5.16 inches (w x h x d)
(without connectors)
54 x 118 x 140 mm / 2.13 x 4.65 x 5.51 inches (w x h x d)
(inclusive connectors)
approx. 240 g
IP20
Ambient temperature:
Operation:
Storage:
-20 °C … +60 °C / -4 °F … +140 °F (not condensing)
-30 °C … +75° C / -22 °F … +167 °F (not condensing)
Failure rate:
MTBF in years:
(continuous operation at
60 °C / 140 °F)
GT222: 131,7 a
GV224: 120,9 a / GT224: 102,0 a
GV228: 85,4 a / GT228: 67,7 a
Conformity & standards:
EMC 2014/30/EU:
RoHS (Ⅱ) 2011/65/EU
RoHS (Ⅲ) 2015/863:
EN 61326-1: 2013 for industrial location
EN 55011: 2016 + A1: 2017 + A11: 2020 Class A
EN IEC 63000: 2018

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6.Dimensions
GV224 / GT222 / GT224
GV228 / GT228

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EV224 / EV228
ET224 / ET228
Extension modules for pulse splitters with and without potential separation
Product features:
•Supply voltage via bus connector
•Encoder input via bus connector
•Optionally 4 or 8 additional outputs with or without potential separation (see below)
•Output level is specified by external voltage supply
Available devices:
•EV224: Extension module with 4 outputs
•EV228: Extension module with 8 outputs
•ET224: Extension module with 4 potential separated outputs
•ET228: Extension module with 8 potential separated outputs