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Allen-Bradley 1769-HSC Installation Instructions Manual Download Page 15

Compact I/O High-speed Counter Module     

15

Publication 1769-IN030B-EN-P - October 2010

Figure 5 - Single-Ended Encoder Wiring

(1)

Refer to your encoder manual for proper cable type. The type of cable used should be twisted-pair, individually shielded 
cable with a maximum length of 300 m (1000 ft).

(2)

External resistors are required if they are not internal to the encoder. The pull-up resistor (R) value depends on the power 
supply value. The table shows the maximum resistor values for typical supply voltages. To calculate the maximum resistor 
value, use the following formula:

 

where:

R = maximum pull-up resistor value

V DC = power supply voltage

V min = 2.6V DC

I min = 6.8 mA

The minimum resistor (R) value depends on the current sinking capability of the encoder. Refer 
to your encoder’s documentation.

Power Supply Voltage (V DC)

Pull-up Resistor Value (R), Max

(1)

(1)

Resistance values may change, depending upon your application.

5V DC

352 

Ω

12V DC

1382 

Ω

24V DC

3147 

Ω

A

B

Z

A1(+)

A1(–)

B1(+)

B1(–)

Z1(+)

Z1(–)

GND

VS

+VDC

COM

R

(2)

Cable

(1)

Power 
Supply

Allen-Bradley 
845H Series 
Single-ended 
Encoder

Shield/Housing
Connect only if housing is electronically 
isolated from the motor and ground.

Shield

Module Inputs

Earth

R

VDC Vmin

–

Imin

-------------------------------------------

=

Summary of Contents for 1769-HSC

Page 1: ...board outputs to react to input conditions at high speed The module is compatible with CompactLogix controllers MicroLogix 1500 controllers and the 1769 ADN DeviceNet adapter Topic Page Important User Information 2 Environment and Enclosure 3 North American Hazardous Location Approval 4 Module Features 5 Hardware Description 6 Module Installation 7 System Planning 8 System Assembly 8 System Mounti...

Page 2: ... installation Rockwell Automation Inc cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by Rockwell Automation Inc with respect to use of information circuits equipment or software described in this manual Reproduction of the contents of this manual in whole or in part without written permission of Rockwell Automation Inc is ...

Page 3: ... or minimize the spread of flame complying with a flame spread rating of 5VA V2 V1 V0 or equivalent if non metallic The interior of the enclosure must be accessible only by the use of a tool Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications In addition to this p...

Page 4: ...s défavorable code de température le plus faible peut être utilisé pour déterminer le code de température global du système Les combinaisons d équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au moment de l installation WARNING Explosion Hazard Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous Do not disconn...

Page 5: ...r DIN rail mounting These are additional features Two quadrature ABZ differential inputs alternately configurable for the following Pulse internal direction input four counters in this configuration Pulse external direction input Up and down pulse input X1 X2 or X4 quadrature encoder input 32 bit count values 2 billion counts 21 bit rate values 1 MHz User definable minimum and maximum count values...

Page 6: ...emale pins 6b Stationary bus connector bus interface with male pins 7 Nameplate label 8a Upper tongue and groove slots 8b Lower tongue and groove slots 9a Upper DIN rail latch 9b Lower DIN rail latch 10 Write on label for user identification tags 1769 HSC DANGER Do Not Remove RTB Under Power Unless Area is Non Hazardous Ensure Adjacent Bus Lever is Unlatched Latched Before After Removing Inserting...

Page 7: ... voltage capability of the product s insulation 3 Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission IEC designations WARNING When you insert or remove the module while backplane power is on an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceed...

Page 8: ...se unit has limits in the amount of 5V DC and 24V DC current that it can supply to modules in its I O bank These limits depend on the catalog number for example 1769 PA2 of the supply A bank of modules must not exceed the current limits of the I O bank power supply or MicroLogix 1500 base unit Refer to these publications for more information Compact I O Expansion Power Supplies Installation Instru...

Page 9: ...line up with each other 5 Use your fingers or a small screwdriver to push the bus lever back slightly to clear the positioning tab D 6 Move the module s bus lever fully to the left E until it clicks making sure it s locked firmly in place 7 Attach an end cap terminator F to the last module in the system by using the tongue and groove slots 8 Lock the end cap bus terminator G ATTENTION When attachi...

Page 10: ...ounded mounting surface such as a metal panel Additional grounding connections from the power supply s mounting tabs or DIN rail if used are not required unless the mounting surface cannot be grounded Refer to Industrial Automation Wiring and Grounding Guidelines publication 1770 4 1 for additional information Top Side Bottom Side Controller Compact I O Compact I O Compact I O Compact I O Compact ...

Page 11: ...he center of all module mounting holes on the panel 3 Return the assembled modules to the clean work surface including any previously mounted modules 4 Drill and tap the mounting holes for the recommended M4 or 8 screw 5 Place the modules back on the panel and check for proper hole alignment 6 Attach the modules to the panel using the mounting screws 7 Repeat step 1 through step 6 for any remainin...

Page 12: ...ove power referring to Warnings on page 7 2 Remove terminal block or disconnect input and or output wiring from the module 3 Remove the upper and lower mounting screws from the module or open the DIN latches by using a screwdriver 4 On the module to be replaced and the right side adjacent module or end cap if the module is the last module in the bank move the bus levers to the right unlock to disc...

Page 13: ...s Disconnect power to the module before wiring This includes sensor power and 1769 bus power Input and output channels are isolated from the 1769 Compact bus Input channels are isolated from one another output channels are not Shielded cable is required for high speed input signals A B and Z Use individually shielded twisted pair cable or the type recommended by the encoder manufacturer for length...

Page 14: ...nts Terminal Block Guidelines For optimum accuracy limit overall cable impedance by keeping cable as short as possible Locate the module as close to input devices as the application permits Tighten terminal screws with care Excessive tightening can strip a screw Wire Diagrams The following pages show wiring examples for a differential encoder single ended encoder and discrete device Figure 4 Diffe...

Page 15: ...ages To calculate the maximum resistor value use the following formula where R maximum pull up resistor value V DC power supply voltage V min 2 6V DC I min 6 8 mA The minimum resistor R value depends on the current sinking capability of the encoder Refer to your encoder s documentation Power Supply Voltage V DC Pull up Resistor Value R Max 1 1 Resistance values may change depending upon your appli...

Page 16: ... formula where R maximum pull up resistor value V DC power supply voltage V min 2 6V DC I min 6 8 mA The minimum resistor R value depends on the current sinking capability of the sensor Refer to your sensor s documentation Power Supply Voltage V DC Pull up Resistor Value R Max 1 1 Resistance values may change depending upon your application 5V DC 352 Ω 12V DC 1382 Ω 24V DC 3147 Ω VS A1 A1 B1 B1 Z1...

Page 17: ...nto a module could cause damage at powerup Once wiring is complete be sure that the module is free of all metal fragments 1 Recommended Surge Suppression The module has built in suppression which is sufficient for most applications however for high noise applications use a 1N4004 diode reverse wired across the load for transistor outputs switching 24V DC inductive loads For additional details refe...

Page 18: ... restrictions TIP The terminal screws are non captive Therefore it s possible to use a ring lug 6 35 mm 0 25 in maximum outside diameter with 3 53 mm 0 139 in minimum inside diameter with the module TIP If you need to remove the finger safe cover insert a screwdriver into one of the square wiring holes and gently pry the cover off If you wire the terminal block with the finger safe cover removed y...

Page 19: ... wrap grounding the shield at this end by using as short a lead length as possible 4 At the other end of the cable cut the drain wire and foil shield back to the cable and apply shrink wrap 5 Connect the signal wires to the terminal block connecting the other end of the cable to the input device 6 Repeat step 1 through step 5 for each channel on the module ATTENTION To prevent shock hazard care sh...

Page 20: ...protection device to automatically reset or to be reset under program control The automatic reset function occurs after the thermal protection device cools If the current overload or short circuit condition still exists the automatic reset cycle repeats until it is removed Figure 8 Timing Diagram for Over current and or Short circuit Shutdown and Restart Under voltage Condition If the field supply...

Page 21: ... up transients do not exceed the time duration for the amount of loading indicated at 60 C 140 F Figure 9 Transient Pulse Duration as a Function of Load Current ATTENTION A transient pulse occurs in transistor outputs when the external DC supply voltage is applied to the output common terminals for example via the master control relay The sudden application of voltage creates this transient pulse ...

Page 22: ... the configuration Status Indicator Color Indicates Status Indicator Color Indicates 0 OUT Amber ON OFF logic status of output 0 A0 Amber ON OFF status of input A0 1 OUT Amber ON OFF logic status of output 1 A1 Amber ON OFF status of input A1 2 OUT Amber ON OFF logic status of output 2 B0 Amber ON OFF status of input B0 3 OUT Amber ON OFF logic status of output 3 B1 Amber ON OFF status of input B1...

Page 23: ...en 55 60 C 131 140 F is achieved by using a dropping resistor For 24V DC input voltage use a 2 4 kΩ W resistor For input voltages other than 24V DC use a W resistor with value 125 x Vin 5V 0 40 C 32 104 F 30V DC 55 C 131 F 26 4VDC 60 C 140 F 5V DC Temperature Derated Voltage 0 40 C 32 104 F 30V DC 55 60 C 131 140 F 26 4V DC 32 50 68 86 104 122 140 158 Ambient Temperature C F Volts DC Voltage Derat...

Page 24: ...ure Derated Current 0 40 C 32 104 F 1 A 60 C 140 F 0 5 A Temperature Derated Current 0 40 C 32 104 F 4 A 60 C 140 F 2 0 A 32 50 68 86 104 122 140 158 Current Derating Based on Temperature Ambient Temperature C F 0 5 A at 60 C 140 F 45206 Current per Point A 32 50 68 86 104 122 140 158 Current Derating Based on Temperature Ambient Temperature C F 2 A at 60 C 140 F 45207 Current per Module A ...

Page 25: ...rent 0 40 C 32 104 F 1 A 55 C 131 F 0 5 A 60 C 140 F 0 25 A Temperature Derated Current 0 40 C 32 104 F 4 A 55 C 131 F 2 A 60 C 140 F 1 A 32 50 68 86 104 122 140 158 Current Derating Based on Temperature Ambient Temperature C F 45208 0 25 A at 60 C 140 F Current per Point A 32 50 68 86 104 122 140 158 Current Derating Based on Temperature Ambient Temperature C F 45209 1 A at 60 C 140 F Current per...

Page 26: ...channel 4 A per module 30 V DC 40 C 104 F Power supply distance rating Module cannot be more than four modules away from a system power supply Recommended cable Individually shielded twisted pair cable or the type recommended by the encoder or sensor manufacturer Wire size 0 32 2 1 mm2 22 14 AWG solid copper wire or 0 32 1 3 mm2 22 16 AWG stranded copper wire rated at 90 C 194 F insulation max Wir...

Page 27: ...e current max 1 A per point 2 4 A per module 3 On state current min 1 mA On state voltage drop max 0 5V DC Off state leakage current max 5 µA Turn on time max 400 µs 4 Turn off time max 200 µs Reverse polarity protection 30V DC 1 See Maximum Output Voltage 24V DC Operation temperature derating on page 23 2 See Maximum Output Current per Point 5V DC Operation temperature derating on page 24 and Max...

Page 28: ... 40 85 C 40 185 F Relative humidity IEC 60068 2 30 Test Db Unpackaged Damp Heat 5 95 noncondensing Vibration operating IEC 60068 2 6 Test Fc Operating 5 g 10 500 Hz peak to peak Vibration relay operation IEC 60068 2 6 2 g 10 500 Hz 1 Shock operating IEC 60068 2 27 Test Ea Unpackaged Shock 30 g 11 ms panel mounted 20 g 11 ms DIN rail mounted Shock nonoperating IEC 60068 2 27 Test Ea Unpackaged Shoc...

Page 29: ...ions 1769 HSC 1 1 When product is marked Certification 2 2 See the Product Certification link at http www ab com for Declarations of Conformity Certificates and other certification details 1769 HSC c UL us UL Listed Industrial Control Equipment certified for U S and Canada See UL File E65584 c UL us UL Listed for Class I Division 2 Group A B C D Hazardous Locations certified for U S and Canada See...

Page 30: ...act High speed Counter Module User Manual publication 1769 UM006 Detailed description of how to use your High speed Counter Module ControlLogix System User Manual publication 1756 UM001 Detailed description of how to use your ControlLogix operating system MicroLogix 1500 Programmable Controllers User Manual publication 1764 UM001 Information on how to use your MicroLogix 1500 system Industrial Aut...

Page 31: ...Compact I O High speed Counter Module 31 Publication 1769 IN030B EN P October 2010 Notes ...

Page 32: ...ecial Customer Support number for initial help in getting your product up and running New Product Satisfaction Return Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility However if your product is not functioning and needs to be returned follow these procedures Documentation Feedback Your comments will help us serve y...

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