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Operating Manual

motrona GmbH, Zeppelinstraße 16, DE - 78244 Gottmadingen, Tel. +49 (0) 7731 9332-0, Fax +49 (0) 7731 9332-30, info@motrona.com, www.motrona.com

GV460 / GV461 and GV480 / GV481

Pulse splitters for incremental encoders - with simple or complete 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

 Types with 4 or 8 outputs available (see below)

 Selectable output levels (RS422 / TTL / HTL)

 Auxiliary 5.5 VDC encoder supply output

 Easy cascading of further devices possible (incl. select function)

Available devices:

GV460: Pulse splitter with 8 outputs, short circuit proof encoder supply, potential separation

between input and outputs and a temperature range of -20 to + 60 °C / -4° to 140 °F .

GV461: Pulse splitter with 4 outputs, short circuit proof encoder supply, potential separation

between input and outputs and a temperature range of -20 to + 60 °C / -4 ° to 140 °F.

GV480: Pulse splitter with 8 outputs, short circuit proof encoder supply, complete potential

separation (input, power supply, outputs) and a temperature range of -20 to + 60 °C / -4° to 140 °F.

GV481: Pulse splitter with 4 outputs, short circuit proof encoder supply, complete potential

separation (input, power supply, outputs) and a temperature range of -20 to + 60 °C / -4°F to 140 °F.

Summary of content (14 pages)

PAGE 1
Operating Manual GV460 / GV461 and GV480 / GV481 Pulse splitters for incremental encoders - with simple or complete 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 Types with 4 or 8 outputs available (see below) Selectable output levels (RS422 / TTL / HTL) Auxiliary 5.5 VDC encoder supply output Easy cascading of further devices possible (incl.
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Version: GV48001a/Jan09/af-hk GV48002a/Jan09/af-hk Gv480_02b_oi/Sep-15/ag Description: Original edition Supplements for model GV460 “Safety Instructions”, “Technical Specifications” and design updated 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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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.
PAGE 4
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 voltagesources.
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2. Introduction and Block Diagram GV460, GV461, GV480 and GV481 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 (4 or 8 channels) and the system of potential separation. Models GV460 and GV461 are lower in price but provide only a 2-circuit potential separation between the input on one side and the outputs with power supply on the other side.
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2.1. Block diagram GV 460 and GV 461 +5,5V A 1 2 3 /A B /B Z /Z 4 5 6 7 8 +Vref 8 5 3 GND +VCC A 7 2 B 4 Z 6 GNDIN +VCCIN 1 1 0V 2 +Lev. 3 A 4 /A 5 B 6 /B 7 Z 8 /Z 1 0V 2 +Lev. 3 A 4 /A 5 B 6 /B 7 Z 8 GND /Z +VCC +VCC = 5,5 V A B Z Sel=Lo CASC in B 1 Z 3 A Sel=Hi GND +VCC 7 5 Stab A B GND Z 1 B 1 2 3 Z 7 3 A Select - + Power Gv480_02b_oi_e.
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2.2. Block diagram GV 480 and GV 481 +5,5V A 1 2 3 /A B /B Z /Z 4 5 6 7 8 +Vref 8 5 3 GND +VCC A 7 2 B 4 Z 6 GNDIN +VCCIN 1 0V 2 +Lev. 3 A 4 /A 5 B 6 /B 7 Z 8 /Z 1 0V 2 +Lev. 3 A 4 /A 5 B 6 /B 7 Z 8 VCCO1 1 GNDO1 /Z A B Z Sel=Lo CASC in B 3 A GNDO2 VCCO2 1 Z Sel=Hi 7 5 Stab A B GND Z 1 B 1 2 3 Z 7 3 A Select - + Power Gv480_02b_oi_e.
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3. Electrical Connections and LED Function 3.1. Power Supply and LEDs The unit provides a 3-position screw terminal strip for supply from a 10 - 30 VDC power unit. The current consumption is approx. 40 mA (no-load operation). The “Select” input terminal provides selection of the desired source encoder. Details will be described later. - + Select ON A B Z The upper LED (green) signals that power is applied to the unit.
PAGE 9
3.3. Impulse Inputs The 8-position DIL switch on the front side provides setting of the desired signal formats and levels. These settings are separately for each of the channels A / B / Z (see block diagram). For simplification, a short form of the four most common applications is shown below, with the encoder supply omitted: 3.3.1.
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3.3.4. Differential signals for encoder channels A and B, but single-ended marker pulse from proximity switch or photocell Besides the most common standard configurations shown before, the unit allows setting of any other input configuration (e.g. differential encoder inputs on channels A, /A, B, /B, but singleended index signal on input Z (from a proximity switch, photocell or similar) The block diagram shows which of the DIL switch positions is responsible for each of the channels.
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3.4. The 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 1. On terminal 1 (0V) and terminal 2 (+Lev.) a remote voltage has to be applied to each output stage, which at the same time also determines the signal level on the corresponding output*).
PAGE 12
Cascaded units allow selection of the active source encoder via the encoder select input on the 3-position power connector (see also block diagram): LOW (or open): outputs refer to the encoder input of the same unit HIGH (10 - 30 VDC): outputs refer to the encoder input of the preceding unit It is possible at any time to switch over from one to the other source encoder during operation. Where only one common encoder is used, the select input of the first unit remains unconnected.
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4. Technical Specifications Power supply: Input voltage: Protection circuit: Ripple: Consumption: Connections: Description: Output voltage: Output current: Protection: Connections: Further possibilities: 10 … 30 VDC reverse polarity protection ≤ 10 % at 24 VDC approx. 40 mA (with an unloaded encoder supply) screw terminal, 1.5 mm² / AWG 14 Encoder supply: switchable auxiliary voltage for 5 V encoders 5.5 VDC max. 200 mA, galvanically connected with the power supply short circuit proof screw terminal, 1.
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5. Dimensions 144 mm (5.669'') 60,5 mm (2.382'') 70,0 mm (2.756'') 72 mm (2.835'') Gv480_02b_oi_e.doc / Nov-15 8 mm (0.