1769-IN028A-EN-P, Compact Expansion Power Supplies
Contents
1. 20 J El 154 8 8 2 o 2 5 60 C _ __ gt 0 0 20 40 60 Bus 5V 24V and User 24V Load Watts Publication 1769 IN028A EN P 30 Compact M Expansion Power Supplies 1769 PB4 Real Power Dissipation 20 un cse amp 55 C 23 t 10 e 2 A g 5 ec 60 05 0 20 40 60 Bus 5V 24V and User 24V Load Watts Compatibility with MicroLogix 1500 To use the 1769 expansion I O power supply with the MicroLogix 1500 processor the processor catalog number 1764 LSP or 1764 LRP must be Series A Revision C FRN 3 or higher You can check the firmware revision by looking at Status file bit 59 Operating System Firmware Revision Number The processor nameplate If your processor is at an older revision you must upgrade the operating system On the internet go to http www abmicrologix com to download the firmware upgrade Publication 1769 IN028A EN P Compact Expansion Power Supplies 31 For More Information For A more d etailed description of how to install and use a 1769 ADN DeviceNet Adapter Module Refer to this Document 1769 ADN Adapter User Manual Pub No 769 UM001A US P A more detailed descrip and use ion of how to install Compact Analog 1 0 Compact 1769 Analog 1 02. 24V Bus Load Amps Publication 1769 IN028A EN P Compact M Expansion Power Supplies 27 1769 PB2 Output Derating Total Output 29W at 60 C or below 0 8 20 1 5 a a 60 C amp 1 0 1 0 E gt 05 0 2 0 0 T T T T T T T T T 1 0 01 02 03 04 05 06 07 08 09 10 24V Bus Load Amps 1769 PA4 Output Derating Total Output 68W at 55 C or below 61W at 60 C or below 5V Bus Load Amps 0 0 0 0 02 04 06 08 10 12 14 16 18 20 24V Bus Load Amps Publication 1769 IN028A EN P 28 Compact Expansion Power Supplies 1769 PB4 Output Derating Total Output 68W at 55 C or below 61W at 60 C or below z E zx E E o 0 0 T T T T T T T T 1 00 02 04 06 08 10 12 14 1 6 18 20 24V Bus Load Amps Power Dissipation 1769 PA2 Real Power Dissipation 1 Real Power Dissipated Watts o N O1 co 1c co gt 0 10 20 30 40 Bus 5V 24V and User 24V Load Watts Publication 1769 IN028A EN P Compact M Expansion Power Supplies 29 1769 PB2 Real Power Dissipation 10 g t 8 7 86 H 2 5 4 E 3 H 2 60 C gt 1 0 0 10 20 30 40 Bus 5V and 24V Load Watts 1769 PM Real Power Dissipation
3. 32 2 663 06 00 Fax 32 2 663 06 40 Rockwell Asia Pacific Headquarters 27 F Citicorp Centre 18 Whitfield Road Causeway Bay Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Automation Publication 1769 IN028A EN P October 2000 PN 40072 102 01 A Supersedes 1769 IN013A US P April 2000 2000 Rockwell International Corporation Printed in the U S A
4. I O but is typically between 5 milliseconds and 10 seconds When the duration of power loss reaches this limit the power supply signals the processor that it can no longer provide adequate dc power to the system This is referred to as a power supply shutdown The processor then performs an orderly shutdown of the controller Input States on Power Down The power supply hold up time as described above is generally longer than the turn on and turn off times of the inputs Because of this the input state change from On to Off that occurs when power is removed may be recorded by the processor before the power supply shuts down the system Understanding this concept is important The user program should be written to take this effect into account Publication 1769 IN028A EN P 14 Compact M Expansion Power Supplies Other Types of Line Conditions Occasionally the power source to the system can be temporarily interrupted It is also possible that the voltage level may drop substantially below the normal line voltage range for a period of time Both of these conditions are considered to be a loss of power for the system User Power Overcurrent Condition The power supply shuts down in the event of an overcurrent condition All outputs latch off and remain of until the overcurrent is removed and the power is cycled Reload the user program following a power supply shutdown To avoid unexpected operation due to 24V dc user power
5. isolation transformers Publication 1769 IN028A EN P Compact Expansion Power Supplies 13 Power Supply Inrush During power up the power supply allows a brief inrush current to charge internal capacitors Many power lines and control transformers can supply inrush current for a brief time If the power source cannot supply this inrush current the source voltage may sag momentarily The only effect of limited inrush current and voltage sag on the system is that the power supply capacitors charge more slowly However the effect of a voltage sag on other eguipment should be considered For example a deep voltage sag may reset a computer connected to the same power source The following considerations determine whether the power source must be reguired to supply high inrush current The power up sequence of devices in a system The amount of the power source voltage sag if the inrush current cannot be supplied The effect of voltage sag on other equipment in the system If the entire system is powered up at the same time a brief sag in the power source voltage typically will not affect any eguipment Loss of Power Source The power supply is designed to withstand brief power losses without affecting the operation of the system The time the system is operational during power loss is called program scan hold up time after loss of power The duration of the power supply hold up time depends on the type and state of the
6. on your configuration 3 Applies to 1769 PA2 only 4 The total number of 1 0 modules cannot exceed 16 on a single bank with a maximum of eight 1 0 modules on either side of the power supply When configuring your system using a MicroLogix 1500 controller only one expansion cable one expansion power supply and a total of eight 1 0 modules may be used in a maximum of two banks of I O modules The expansion power supply cannot be directly connected to the MicroLogix 1500 controller 5 The maximum amount of current that must be distributed from either side of a 1769 power supply is 2 amps at 5V dc and 1 amp at 24V dc regardless of its total output capacity Publication 1769 IN028A EN P Compact M Expansion Power Supplies 11 System Power Budget Calculation Worksheet Catalog n A B nxA nxB Number Number of Module Current Requirements Calculated Current Modules in at 5V dc mA at 24V dc at 5V dc mA at 24V dc mA the Bank mA 1 69 ADN 450 0 1769 IA16 15 0 1769 IA8l 90 0 1769 IM12 00 0 1769 1016 15 0 1769 I06XOW4 05 50 1769 0A8 45 0 1769 0B16 200 0 1769 0B16P 60 0 1769 0V16 200 0 1769 0W8 25 100 1 69 OW8l 25 100 1769 IF4 A 20 150 1769 IF4 B 20 60 1769 0F2 A 20 200 1769 0F2 B 20 120 1769 ECR 5 0 1769 FCL 2 5 0 User 24V Sensor CurrentTotal 0 mA example Total Modules Total 1 Refer to the sp
7. reviewing the following safety considerations Hazardous Location Considerations This eguipment is suitable for use in Class I Division 2 Groups A B C D or non hazardous locations only The following WARNING statement applies to use in hazardous locations LM EXPLOSION HAZARD Substitution of components may impair suitability for Class I Division 2 Do not replace components or disconnect equipment unless power has been switched off Do not connect or disconnect components unless power has been switched off This product must be installed in an enclosure All wiring must comply with NEC Article 501 4 b Environnements dangereux Cet quipement est conqu pour tre utilis dans des environnements de Classe 1 Division 2 Groupes A B C D ou non dangereux La mise en garde suivante s applique une utilisation dans des environnements dangereux MISE EN GARDE DANGER D EXPLOSION e La substitution de composants peut rendre cet quipement impropre une utilisation en environnement de Classe 1 Division 2 Ne pas remplacer de composants ou d connecter l quipement sans s tre assur que l alimentation est coup e Ne pas connecter ou d connecter des composants sans s tre assur que l alimentation est coup e Ce produit doit tre install dans une armoire Publication 1769 IN028A EN P Compact Expansion Power Supplies 3 Safety Circuits WARNING Explosion Hazard Do
8. shutdown 1769 PA2 only monitor the 24V dc user output with a 24V dc input channel Master Control Relay A hard wired master control relay MCR provides a reliable means for emergency machine shutdown Since the master control relay allows the placement of several emergency stop switches in different locations its installation is important from a safety standpoint Overtravel limit switches or mushroom head push buttons are wired in series so that when any of them opens the master control relay is de energized This removes power to input and output device circuits ATTENTION Never alter these circuits to defeat their function since serious injury and or machine damage could result Publication 1769 IN028A EN P Compact Expansion Power Supplies 15 NOTE Ifyou are using an external dc power supply interrupt the dc output side rather than the ac line side of the supply to avoid the additional delay of power supply turn off The ac line of the dc output power supply should be fused Connect a set of master control relays in series with the dc power supplying the input and output circuits Place the main power disconnect switch where operators and maintenance personnel have quick and easy access to it If you mount a disconnect switch inside the enclosure place the switch operating handle on the outside of the enclosure so that you can disconnect power without opening the enclosure Whenever any of the emer
9. terminal block Wiring the Finger Safe Terminal Block When wiring the terminal block keep the finger safe cover in place 1 Loosen the terminal screws to be wired 2 Route the wire under the terminal pressure plate You can use the bare wire or a spade lug The terminals will accept a 6 35 mm 0 25 in spade lug NOTE The terminal screws are non captive Therefore it is possible to use a ring lug maximum 1 4 inch o d with a 0 139 inch minimum i d M3 5 with the module 3 Tighten the terminal screw making sure the pressure plate secures the wire Recommended torgue when tightening terminal screws is 1 27 Nm 11 24 in lbs If you need to remove the finger safe cover insert a screwdriver into one of the sguare wiring holes and gently pry the cover off If you wire the terminal block with the finger safe cover removed you will not be able to put it back on the terminal block because the wires will be in the way Wire Size and Terminal Screw Torgue Each terminal accepts up to two wires with the following restrictions Wire Type Wire Size Terminal Screw Torque Solid Cu 90 C 1949F 14 AWG 1 27 Nm 11 24 in lbs Publication 1769 IN028A EN P 22 Compact M Expansion Power Supplies Fuse Replacement Procedure ATTENTION Never install remove or wire power supplies unless power has been switched off To replace a blown fuse Remove Compact I O system power and correct the conditions ca
10. to components In extreme cases you may need to use air conditioning to protect against heat build up within the enclosure Panel Mounting Mount the power supply to a panel using four screws per module Use M4 or 8 panhead screws Mounting screws are reguired on each power supply panel mounting tab Panel Mounting Using the Dimensional Template For more than 2 modules number of modules 1 X 35 mm 1 38 in 40 70 28 5 1 58 2 76 1 12 i 5 F 132 2 o 5 197 8 2 3 4 Bi S 122 6 0 2 38 S 4 826 0 008 Fi NOTE All dimensions are in mm in 35 35 Hole spacing tolerance 20 4 mm 0 016 in 1 38 1 38 Publication 1769 IN028A EN P Compact Expansion Power Supplies 9 DIN Rail Mounting The power supply can be mounted using the following DIN rails 35 x 7 5 mm EN 50 022 35 x 7 5 or 35 x 15 mm EN 50 022 35 x 15 Before mounting a power supply or module on a DIN rail close the DIN rail latches Press the DIN rail mounting area of the module against the DIN rail The latches will momentarily open and lock into place The following illustration shows a power supply being attached to the I O modules in a DIN rail mounted Compact I O system System Power Budget Calculation and Considerations The following example is provided to illustrate system power budget validation using 1769 power supplies The table on the following page accounts fo
11. Compact Discrete 1 0 1769 Compact Discrete Input 769 2 1 Modules Output Modules Product Data More information on proper wiring and Industrial Automation Wiring and 1770 4 1 grounding techn ques Grounding Guidelines If you would like a manual you can download a free electronic version from the internet http www abmicrologix com or www theautomationbookstore com purchase a printed manual by contacting your local distributor or Rockwell Automation representative visiting www theautomationbookstore com and placing your order calling 1 800 963 9548 USA Canada or 001 330 725 1574 Outside USA Canada Publication 1769 IN028A EN P MicroLogix and Compact are trademarks of Rockwell Automation Vy a a a O Reach us now at www rockwellautomation com Wherever you need us Rockwell Automation brings together leading brands in industrial automation including Allen Bradley controls Reliance Electric power transmission products Dodge mechanical power transmission components and Rockwell Software Rockwell Automation s unique flexible approach to helping customers achieve a competitive advantage is supported by thousands of authorized partners distributors and system integrators around the world Americas Headquarters 1201 South Second Street Milwaukee WI 53204 USA Tel 1 414 382 2000 Fax 1 414 382 4444 European Headquarters SA NV avenue Herrmann Debroux 46 1160 Brussels Belgium Tel
12. Iw Installation Instructions Compact Expansion Power Supplies Cat No 1769 PA2 PB2 PA4 PB4 Inside Safety Considerations a 2 Hazardous Location Considerations sssssss 2 Environnements dangereux ccccescesesseseesesseseeseesesseseessteseeteateseeeatesees 2 Safety CI GUITS ceci rire riter vtt cere peri tetas 3 Power Supply Description 4 Expansion 1 0 Power Supply Installation 11 111111111111srssssrssrereee System Assembly Mounting an Expansion 1 0 Power Supply System Power Budget Calculation and Considerations 9 System Power Budget Calculation Worksheet 11 Power Considerations encsi teer cotes 12 Master Gontral Helay s coii tct teet tees 14 Connecting Power Supplies ssssssssssssssssa1res11attititnenstssnssssssesrerenrnnnne 17 Field Wiring Connections Fuse Replacement Procedure Specifications sette 23 Temperature Derating euuuueuuuuu III LIU I III IH 25 Power Dissipation ieu i Mics CGG nat nn nie n 28 Compatibility with MicroLogix 1500 30 For More Information 31 Publication 1769 IN028A EN P 2 Compact Expansion Power Supplies Safety Considerations Safety considerations are an important element of proper system installation Actively thinking about the safety of yourself and others as well as the condition of your eguipment is of primary importance We recommend
13. User Manual 769 UM002A EN P A more detai and use your CompactLogix controller led description of how to install CompactLogix System User Manual 769 UM007A EN P A more detai led description of how to install and use your Compact 1 0 with the MicroLogix 1500 programmable con roller MicroLogix 1500 Programmable Controllers User Manual 764 UM001A EN P An overview of the 1769 Compact 0 Sys em Compact 1 0 System Overview 769 SO001A EN P An overview of the MicroLogix 1500 System including 1769 Compact 1 0 MicroLogix 1500 System Overview 764 S0001B EN P Information on installing and using 1769 Installation Instructions are 769 INxxx Compact 1 0 modules included with each module Also available via www theautomationbookstore com Information on installing and using Compact Compact I O Communication Bus 769 5 15 1 0 Communication Bus Expansion Cables Expansion Cables Installation Instructions Information on installing and using Compact Compact 1769 ECR Right End Cap 1769 5 9 1769 ECR Right End Cap Terminator Terminator Information on installing and using Compact Compact 1769 ECL Left End Cap 769 5 16 1769 ECL Left End Cap Terminator Terminator An overview of the Compact 1769 Expansion _ Compact 1769 Expansion I O Power 1769 TD001A EN P 1 0 Power Supplies and Cables Supplies and Cables Technical Data An overview of 1769
14. able continued on next page Compact M Expansion Power Supplies 25 Specification 1769 PA2 1769 PB2 1769 PA4 1769 PB4 5V 1769 Bus Yes Overvoltage Protection 24V 1769 Bus Yes Overvoltage Protection Isolation Voltage Input Verified by one of the following dielectric tests Power to 1769 Bus 1836V ac for 1s or 1200V ac for 1s or 1836V ac for 1s or 1200V ac for 1s or 2596V dc for 1s 1697V dc for 1s 2596V dc for 1s 1697V dc for 1s 265V Working 75V Working 265V Working 75V Working Voltage Voltage Voltage Voltage IEC Class 1 IEC Class 1 IEC Class 1 IEC Class 1 grounding grounding grounding required grounding reguired reguired reguired 1 Refer to the Temperatu e Derating graphs on pages 25 through 30 Temperature Derating 1769 PA2 Output Derating With User 24V current draw at 0 Amps 0 875 DV Bus Load Amps 02 03 04 05 de 07 0 8 24V Bus Load Amps 00 0 1 Publication 1769 IN028A EN P 26 Compact Expansion Power Supplies 1769 PA2 Output Derating continued With User 24V current draw at 0 2 Amps 0 675 0 85 20 i N v 2 1 5 N 55 C E NI 1 25 10 N 60 C 05 N ous 0 0 T T T 1 T T T it T 1 00 01 02 03 04 05 06 07 08 09 10 24V Bus Load Amps With User 24V current draw at 0 25 Amps 0 8 2 0 15 o 55 C 8 10 10 amp e 2 05 00 01 02 03 04 05 06 07 08 09 10
15. and 424V dc current available from power supply Power fail enabled Overvoltage Exceeded Protection Enabled 0 OFF No input power 2 Maximum Inrush 5Aat132Vac 30A at 31 2V dc 25A at 132V ac 30A 10Q source 109 source impedance impedance 40A at 265V ac 40A at 265V ac 102 source 109 source impedance impedance Line Loss Ride Through 10 ms minimum to 10s maximum 5 ms minimum to 10s maximum Output Bus Current 2A at 5V dc 2A at 5V dc 4A at 5V dc 4A at 5V dc Capacit a i o O 8A at 24Vde O 8A at 24Vde 2A at 24V dc 2A at 24V de Output Bus Current Refer to the Temperature Derating graphs on pages 25 through 30 Capacity 55 C to 60 C Minimum Load Current 0 mA at 5V dc 0 mA at 24V dc 24V dc User Power 250 mal NA Capacity 09C to 55 C 24V dc User Power 200 mal NA Capacity gt 55 C to 60 C 24V dc User Voltage 20 4V dc to 26 4V dc NA Range Short Circuit Protection Front Access Fuse Replacement part number Wickmann 19195 3 15A Wickmann 19343 1 6A or Wickmann 19181 4A Front Access Fuse Replacement part number Wickmann 19193 6 3A Front Access Fuse Replacement part number Wickmann 19195 3 15A or Wickmann 19181 4A Front Access Fuse Replacement part number Wickmann 19193 6 3A 1 Refer to the Temperature Derating graphs on pages 25 through 30 Publication 1769 INO28A EN P Specifications t
16. cuits IEC 950 EN 60950 MCR 2AV dc Y 1 0 Circuits Line Terminals Connect to the 24V dc 1769 power supply terminals Compact Expansion Power Supplies 17 Schematic Using ANSI CSA Symbols L1 L2 230V ac Operation of either of these contacts will remove power from Disconnect the external I O circuits stopping machine motion Fuse MCR IT T 230V ac Y Circuits Isolation ET caer at ds A SA Te Transformer Master Control Relay MCR Xi 115Vac X2 Emergency Stop Cat No 700 PK400A1 otav Push Button Qvertravel Suppressor e Limit Switch Stop Start Cat No 700 N24 LJ Fuse Rio MCR E 115V ac or dcPowerSupply Use 1 0 Circuits Lo o MCR Lo B I 24V dc Hi 1 0 Circuits Line Terminals Connect to the ac 1769 power supply terminals Line Terminals Connect to the 24V dc 1769 power supply terminals Connecting Power Supplies Compact I O system architecture and the power supply design support connection of I O on either side of the power supply Each I O bank requires its own power supply To connect two I O banks attach a 1769 expansion I O cable to a power supply or I O module as shown in the following illustration Publication 1769 IN028A EN P 18 Compact M Expansion Power Supplies NOTE Up to eight I O modules can be connected on either side A or B in the figure below of the power supply for a maximum of 16 modules per bank Each 1769 I O module has a power sup
17. ecific I O module s installation instructions for the module s power supply distance rating The module must be installed within the distance rating from the power supply 2 3 4 5 One 176 9 ECR or 1769 ECL en dependent on your configurati Applies o 1769 PA2 only The tota either si number of I O modu de of the power supp on d cap terminator is required in the system The end cap terminator used is es cannot exceed 16 on a single bank with a maximum of eight 1 0 modules on y When configuring your system using a MicroLogix 1500 controller only one expansion cable one expansion power supply and a total of eight 1 0 modules may be used in a maximum of two ban controller s of 1 0 modules The expansion power supply cannot be directly connected to the MicroLogix 1500 The maximum amount of current that must be distributed from either side of a 1769 power supply is 2 amps at 5V dc and 1 amp at 24V dc regardless of its total output capacity Publication 1769 IN028A EN P 12 Compact M Expansion Power Supplies Steps to Validate Your System Power After you have calculated the amount of current consumed by your system use the current graphs on pages 25 30 to verify that your power supply has adequate capacity for its bank of I O modules N To do so compare the current graphs to your calculated totals for the following total 5V dc total 24V dc total 24V dc senso
18. ese switches shorts out it no longer provides any safety protection These switches should be tested periodically to assure they will stop machine motion when needed Publication 1769 IN028A EN P 4 Compact M Expansion Power Supplies Power Supply Description NOT USED NOT USED 24V de dc NEUTRAL CHASSIS NOT USED NOT USED 120 240V ac L1 V ac COM L2 CHASSIS GND To Publication 1769 IN028A EN P Item Description 1 bus lever with locking function 2a upper panel mounting tabs 2b lower panel mounting tabs 3 green power LED 4 power supply door with terminal identification label 5a movable bus connector with female pins bb stationary bus connector with male pins 6 nameplate label 7a upper tongue and groove slots 7b lower tongue and groove slots 8a upper DIN rail latches 8b lower DIN rail latches 9 terminal block with finger safe cover 10 fuse housing cover for replaceable fuse 11 120V ac or 240V ac line input power selector switch PA4 only 12 selector switch label PA4 only 7a A N 7 5a a L 7b 8b Compact Expansion Power Supplies 5 Expansion 1 0 Power Supply Installation Compact Expansion I O Power Supplies are suitable for use in an industrial environment when ins
19. gency stop switches are opened power to input and output devices should be removed When you use the master control relay to remove power from the external I O circuits power continues to be provided to the system s power supply so that diagnostic indicators on the processor can still be observed The master control relay is not a substitute for a disconnect to the system It is intended for any situation where the operator must quickly de energize I O devices only When inspecting or installing terminal connections replacing output fuses or working on equipment within the enclosure use the disconnect to shut off power to the rest of the system NOTE Do not control the master control relay with the Compact I O system Provide the operator with the safety of a direct connection between an emergency stop switch and the master control relay Publication 1769 IN028A EN P 16 Compact M Expansion Power Supplies Schematic Using IEC Symbols Operation of either of these machine motion Emergency Stop Push Button Overtravel contacts will remove power from the external 1 0 circuits stopping m Limit Switch MCR 230V ac 1 0 Circuits Master Control Relay MCR Cat No 700 PK400A1 Suppressor Cat No 700 N24 m 115V ac or Lo Hi Line Terminals Connect to the ac 1769 power supply terminals Publication 1769 IN028A EN P 230V ac c Power Supply Use 1 0 Cir
20. ifferential mode differential mode differential mode Conducted Immunity IEC1000 4 6 10V 0 15 to 80 MHz supply and a total of eight 1 0 modu If a relay module e g oF co N 30 MHz to 1000 MHz 1 When configuring your system using a Micro power supply cannot be directly connected to 769 OW8 is used in t If a relay module is used in the system operating shock is 7 5G panel mounted 5G DIN rail mounted 500 V differential mode 50 kHz to 30 MHz if the Radiated Immunity frequency range is 24V user test voltage is 500 V common mode Conducted Immunity frequency range may be Logix 1500 controller only one expansion cable one expansion power es may be used in a maximum of two banks of I O modules The expansion the MicroLogix 1500 controller he system operating vibration is 2G Publication 1769 IN028A EN P 24 Compact Expansion Power Supplies Specifications continued Specification 1769 PA2 1769 PB2 1769 PA4 1769 PB4 Nominal Supply 120 240V ac 24V dc 120 240V ac 2AV dc Voltage no jumpers selector switch Voltage Range 85 to 265V ac 19 2 to 31 2V dc 85 to 132V ac or 19 2 to 31 2V dc wide range no 170 to 265 switch jumper or DIP selectable switch required 47 to 63 Hz 47 to 63 Hz Maximum Line 100 VA at 120V ac 50 VA at 24V dc 200 VA at 120V ac 1100 VA at 24V dc Requirement 130 VA at 240V ac 240 VA at 240V ac Green Input Power Available Diagnostic LED N 45
21. ing Weight with carton 525g 1 16 lbs 525g 1 16 lbs 630g 1 39 lbs 630g 1 39 Ibs Storage Temperature 40 C to 85 C 40 F to 185 F Operating Temperature 09C to 60 C 32 F to 140 F Operating Humidity 5 to 95 non condensing Power Supply Distance Rating 8 Up to eight 1 0 modules can be connected on either side of the power supply for a maximum of 16 modules n Operating Altitude 2000 meters 6561 feet Vibration Operating 10 to 500 Hz 5G 0 030 in peak to peak Shock Operating 30G panel mounted 20G DIN rail mounted Non Operating 40G panel mounted 30G DIN rail mounted Agency Certification C UL certified under CSA C22 2 No 142 UL 508 listed CE compliant for all applicable directives Hazardous Environment Class Class I Division 2 Hazardous Location Groups A B C D UL 1604 C UL under CSA C22 2 No 213 Radiated and Conducted Emissions EN50081 2 Class A Electrical EMC ESD Immunity IEC1000 4 2 The power supply has passed testing at the following levels 4 kV contact 8 kV air 8 kV indirect Radiated Immunity IEC1000 4 3 10 V m 80 to 1000 MHz 80 amplitude modulation 900 MHz keyed carrier Fast Transient Burst IEC1000 4 4 2 kV 5 kHz Surge Immunity IEC1000 4 5 4 kV common 500 V common 4 kV common 500 V common mode 2 kV mode 500 V mode 2 kV mode 500 V differential model d
22. not connect or disconnect connectors while circuit is live Circuits installed on the machine for safety reasons like overtravel limit switches stop push buttons and interlocks should always be hard wired directly to the master control relay These devices must be wired in series so that when any one device opens the master control relay is de energized thereby removing power to the machine Never alter these circuits to defeat their function Serious injury or machine damage could result Power Distribution There are some points about power distribution that you should know The master control relay must be able to inhibit all machine motion by removing power to the machine I O devices when the relay is de energized It is recommended that the controller remain powered even when the master control relay is de energized Ifyou are using a dc power supply interrupt the load side rather than the ac line power This avoids the additional delay of power supply turn off The dc power supply should be powered directly from the fused secondary of the transformer Power to the dc input and output circuits should be connected through a set of master control relay contacts Periodic Tests of Master Control Relay Circuit Any part can fail including the switches in a master control relay circuit The failure of one of these switches would most likely cause an open circuit which would be a safe power off failure However if one of th
23. ply distance rating with a maximum value of 8 Refer to the specific 1769 I O module s installation instructions for more information The maximum amount of Bus current that can be distributed on the 1769 Bus on either side of the power supply A or B below is e 2amps at 5V dc assume supported by power supply lamp at 24V dc assume supported by power supply ltem Description A Up to eight I O modules can be B connected on either side of the power supply C expansion 1 0 power supplies D 1 0 communication expansion cable MN To use a 1769 expansion I O power supply with a controller that has an embedded power supply e g MicroLogix 1500 you must use a 1769 expansion I O cable Do not directly attach the expansion power supply to a controller which has an embedded power supply Publication 1769 IN028A EN P Compact M Expansion Power Supplies 19 Field Wiring Connections Grounding the Power Supply This product is intended to be mounted to a well grounded mounting surface such as a metal panel Additional grounding connections from the power supply s mounting tabs or DIN rail if used are not reguired unless the mounting surface cannot be grounded Refer to Industrial Automation Wiring and Grounding Guidelines Allen Bradley publication 1770 4 1 for additional information Power Supply Wiring 1 1769 PA4 only Set the VAC line input power switch behind the clear door to match
24. r power 1769 PA2 only o If your power supply load is at or above the limits of the allowable ranges shown in the graphs on pages 25 30 you must add an additional I O bank See Connecting Power Supplies on pages 17 and 18 for additional information Tia Lhe additional I O bank must include its own power supply An end cap terminator 1769 ECR or 1769 ECL must also be used if the I O bank is the last in the system Power Considerations The following explains power considerations for the Compact I O system Disconnecting Main Power Explosion Hazard Do not replace components or disconnect eguipment unless power has been switched off The main power disconnect switch should be located where operators and maintenance personnel have guick and easy access to it In addition to disconnecting electrical power all other sources of power pneumatic and hydraulic should be de energized before working on a machine or process controlled by a controller Isolation Transformers You may want to use an isolation transformer in the ac line This type of transformer provides isolation from your power distribution system to reduce electrical noise and is often used as a step down transformer to reduce line voltage Any transformer used with the Compact I O system must have a sufficient power rating for its load The power rating is expressed in volt amperes VA See schematics on pages 16 and 17 for an example of circuits using
25. r the amount of 5V dc and 24V dc current consumed by a 1769 ADN DeviceNet adapter if used 1769 Compact I O modules and user supplied equipment 24V dc sensors Publication 1769 IN028A EN P 10 Compact M Expansion Power Supplies System Power Budget Calculation Example The table below can be used to help determine your total I O module power draw from the 1769 system power supply and also the remaining power available power budget Catalog In JA JB nxXA JnxB Number Numberof Module Current Requirements Calculated Current 097 Modules in at5V dc mA at 24V dc mA at 5V dc mA at 24V dc mA the Bank 1769 ADN 450 0 1769 1416 15 0 1769 IA8l 90 0 1769 IM12 00 0 1769 1016 2 15 0 230 0 1769 I06X0WA 1 05 50 105 50 1769 0A8 45 0 1769 0816 1 200 0 200 0 1769 0B16P 60 0 1769 0V16 200 0 1769 0W8 2 25 100 250 200 1769 OW8l 25 100 1769 IF4 A 20 150 1769 IF4 B 20 60 1769 0F2 A 20 200 1769 0F2 B 20 120 1769 ECR 5 0 1769 ECL Z 5 0 User 24V Sensor Current Total 0 mA example Total Modules 6 Total 785 250 1 Refer to the specific I O module s installation instructions for the module s power supply distance rating The module must be installed within the distance rating from the power supply 2 One 1769 ECR or 1769 ECL end cap terminator is required in the system The end cap terminator used is dependent
26. ry conductivity caused by condensation shall be expected 2 Over Voltage Category Il is the load level section of the electrical distribution system At this level transient voltages are controlled and do not exceed the impulse voltage capability of the product s insulation 3 Pollution Degree 2 and Over Voltage Category ll are International Electrotechnical Commission IEC designations Publication 1769 IN028A EN P 6 Compact M Expansion Power Supplies System Assembly 1769 Compact I O power supplies distribute power from either side of the power supply For example a 2 amp at 5V dc power supply 1769 PA2 PB2 can provide 1 amp to the right side of the power supply and 1 amp to the left A 4 amp at 5V dc power supply 1769 PA4 PB4 can provide 2 amps to the right side of the power supply and 2 amps to the left The maximum amount of current the system supports in both directions is shown below 1769 PA2 PB2 2 amps at 5V dc 1 amp at 24V dc 1769 PA4 PB4 4 amps at 5V dc 2 amps at 24V dc The maximum amount of current that can be distributed from either side of any 1769 power supply is 2amps at 5V dc 1 amp at 24V dc This is a limit of the 1769 Compact I O Bus The power supply can be attached to an adjacent I O module before or after mounting The following procedure shows you how to assemble the Compact I O system 1 Disconnect your line power The power supply does not support removal or insertion of module
27. s under power 2 Check that the bus lever of the power supply to be installed is in the unlocked fully right position 3 Use the upper and lower tongue and groove slots 1 to secure the power supply to an I O module 4 Move the power supply back along the tongue and groove slots until the bus connectors 2 line up with each other MA Push the bus lever back slightly to clear the positioning tab 3 Use your fingers or a small screwdriver Publication 1769 IN028A EN P Compact Expansion Power Supplies 1 6 To allow communication between the controller and the I O move the bus lever of the power supply and its adjacent I O modules fully to the left 4 until it clicks Ensure it is locked firmly in place ATTENTION When attaching expansion I O power supplies it is very important that the bus connectors are securely locked together to ensure proper electrical connection 7 Attach an end cap terminator 5 to the last I O module in the system by using the tongue and groove slots as before 8 Lock the end cap bus terminator 6 Tma A 1769 ECR or 1769 ECL right or left end cap respectively must be used to terminate the end of the serial communication bus Mounting an Expansion 1 0 Power Supply ATTENTION During panel or DIN rail mounting of all devices be sure that all debris metal chips wire strands etc is kept from falling into the module Debris that falls into the module co
28. talled in accordance with these instructions Specifically this equipment is intended for use in clean dry environments Pollution degree 27 and to circuits not exceeding Over Voltage Category II TEC 60664 1 6 Prevent Electrostatic Discharge PUTET Electrostatic discharge can damage integrated circuits or semiconductors if you touch bus connector pins Follow these guidelines when you handle the power supply Touch a grounded object to discharge static potential Wear an approved wrist strap grounding device Do not touch the bus connector or connector pins Do not touch circuit components inside the power supply e If available use a static safe work station When not in use keep the power supply in its static shield bag Remove Power MERRER Remove power before removing or inserting this power supply from the 1769 I O system When you remove or insert a power supply with power applied an electrical arc may occur An electrical arc can cause personal injury or property damage by sending an erroneous signal to your system s field devices causing unintended machine motion causing an explosion in a hazardous environment Electrical arcing causes excessive wear to contacts on both the power supply and its mating connector Worn contacts may create electrical resistance 1 Pollution Degree 2 is an environment where normally only non conductive pollution occurs except that occasionally a tempora
29. uld cause damage on power up Minimum Spacing Maintain spacing from Top enclosure walls wireways 1 2 adjacent equipment etc eie eg Allow 50 mm 2 in of 83 la SIZIS cL a ee LL e space on all sides for Side PIE E E 2 Side ia 5 s s s 8 s s adequate ventilation as a shown Bottom 1 This could be an end cap controller adapter or expansion cable depending on your system configuration 2 This could be an end cap or expansion cable depending on your system configuration Publication 1769 IN028A EN P 8 Compact M Expansion Power Supplies Preventing Excessive Heat For most applications normal convective cooling keeps the system within the specified operating range Ensure that the specified temperature range is maintained Proper spacing of components within an enclosure is usually sufficient for heat dissipation In some applications a substantial amount of heat is produced by other eguipment inside or outside the enclosure In this case place blower fans inside the enclosure to assist in air circulation and to reduce hot spots near the system Additional cooling provisions might be necessary when high ambient temperatures are encountered NOTE Do not bring in unfiltered outside air Place the Compact I O system in an enclosure to protect it from a corrosive atmosphere Harmful contaminants or dirt could cause improper operation or damage
30. using the short circuit D Remove fuse housing cover shown in figure below Place a slotted screwdriver under the tab to remove Remove the front access fuse wW Use a fuse puller or similar device to remove the fuse Use care so that the printed circuit board and surrounding electronics are not damaged A Replace the front access fuse See Specifications on page 24 for information on the front access fuse Center the replacement fuse over the fuse clip and press down If a tool is used to press the fuse in place apply pressure to the metal end caps only not the center of the fuse MA Replace fuse housing cover nN Restore Compact I O system power pn a oruse D noruseo lw vd fuse housing cover dc Neuma a Lea crassis DANGER Donotdi t whil it tab is ve unless area is known to be non hazardous u j fa Publication 1769 IN028A EN P Compact M Expansion Power Supplies 23 Specifications Specification Dimensions 1769 PA2 1769 PB2 1769 PA4 1769 PB4 118 mm height x 87 mm depth x 70 mm width height including mounting tabs is 138 mm 4 65 in height x 3 43 in depth x 2 76 in width height including mounting tabs is 5 43 in Approximate Shipp
31. your 120V or 240V ac power source as directed by the DANGER label on the power supply The switch is shipped from the factory in 240V ac position 2 Connect the ground screw of the power supply to the nearest ground or ground bus Use a 14 AWG wire and keep the leads as short as possible NOTE This symbol denotes a protective earth ground terminal which provides a low impedance path between electrical circuits and earth for safety purposes and provides noise immunity improvement This connection must be made for safety purposes Publication 1769 IN028A EN P 20 Compact Expansion Power Supplies 3 Connect incoming power to the power supply terminals as indicated below Turn off incoming power before connecting or disconnecting wires Failure to do so could cause injury to personnel and or damage to equipment Catalog Number 1769 PB2 PB4 NOT USED NOT USED 24V dc Ol dc NEUTRAL CHASSISGROUND Catalog Number 1769 PA2 Catalog Number 1769 PA4 Pwr OUT 24V del NOT USED pwrour com _ NOTUSED QD 120 240V ac L1 120 240V ac L1 Vac COM L2 Vac Comz CHASSIS GROUND CHASSISGROUND 1 24V dc user power for sensors or other special 24V dc 1 0 devices Publication 1769 IN028A EN P Compact Expansion Power Supplies 21 wiring the finger safe
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