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DMR24 Mechanical Relay Output Board User`s Manual

1. 3 terminal 22 12 AWG wire Size 6 875 L x 5 0 W 175mm x 127mm A 3 A 4 APPENDIX B WARRANTY B 2 LIMITED WARRANTY Real Time Devices Inc warrants the hardware and software products it manufactures and produces to be free from defects in materials and workmanship for one year following the date of shipment from REAL TIME DE VICES This warranty is limited to the original purchaser of product and is not transferable During the one year warranty period REAL TIME DEVICES will repair or replace at its option any defective products or parts at no additional charge provided that the product is returned shipping prepaid to REAL TIME DEVICES All replaced parts and products become the property of REAL TIME DEVICES Before returning any product for repair customers are required to contact the factory for an RMA number THIS LIMITED WARRANTY DOES NOT EXTEND TO ANY PRODUCTS WHICH HAVE BEEN DAM AGED AS A RESULT OF ACCIDENT MISUSE ABUSE such as use of incorrect input voltages improper or insufficient ventilation failure to follow the operating instructions that are provided by REAL TIME DEVICES acts of God or other contingencies beyond the control of REAL TIME DEVICES OR AS A RESULT OF SERVICE OR MODIFICATION BY ANYONE OTHER THAN REAL TIME DEVICES EXCEPT AS EX PRESSLY SET FORTH ABOVE NO OTHER WARRANTIES ARE EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
2. high connect the external device the relay is controlling to the NO terminal screw and the ground to the COM terminal screw for the selected channel When operating the relay as a normally closed switch closed low and open high connect the external device to the NC terminal screw and the ground to the COM screw terminal If no relay is installed and you have used a jumper in a corresponding J position the digital I O signal from the digital control board is directly available at the terminal strip To access the signal connect to the COM and GND a GND is available on TB3 Figure 4 shows a diagram of the channel 1 DINO relay circuit CON NC NO DINO Channel 1 Fig 4 DMR24 Relay Circuit Diagram APPENDIX A DMR24 SPECIFICATIONS A 2 DMR24 Characteristics Typical 25 C Relay TP aa SPDT Form C Contact rating rai 120 Vac Vdc 2A Breakdown voltage i 1500 Vac Vdc min ON iE 3 msec typ ORF time ilo ri tute tul s 2 msec typ Switching time sera les nen 10 msec typ Insulati n resistande 2 v n nete iii ERR gt 100 My Life expettancy a ee cene over 5 million operations at full load Current Requirements 5 VOS HE Rae He 80 mA per relay 1 92 A with all relays energized Power Requirements FO VOlTSs i weed rend Let ml nettes From computer or external power supply Connectors Two 50 pin right angle shrouded box headers Screw Terminals TB1 and TB2 36 terminal TB3
3. PARTICULAR PURPOSE AND REAL TIME DEVICES EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED HEREIN ALL IMPLIED WARRANTIES INCLUDING IMPLIED WARRANTIES FOR MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THIS WARRANTY IN THE EVENT THE PRODUCT IS NOT FREE FROM DEFECTS AS WARRANTED ABOVE THE PURCHASER S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT AS PROVIDED ABOVE UNDER NO CIRCUMSTANCES WILL REAL TIME DEVICES BE LIABLE TO THE PURCHASER OR ANY USER FOR ANY DAMAGES INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAM AGES EXPENSES LOST PROFITS LOST SAVINGS OR OTHER DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSE QUENTIAL DAMAGES FOR CONSUMER PRODUCTS AND SOME STATES DO NOT ALLOW LIMITA TIONS ON HOW LONG AN IMPLIED WARRANTY LASTS SO THE ABOVE LIMITATIONS OR EXCLU SIONS MAY NOT APPLY TO YOU THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE B 3 B 4
4. the DMR24 board labeled The DMR24 is pin for pin compatible with all Real Time Devices opto 22 compatible boards including the DIO24 DIO48 DM5802 DM5806 and DM5808 The table below shows the relationship of the DIO board signals to the DMR board relays DMR24 Board opto 22 Compatible Board Cross Reference DMR24 Signal DMR24 opto 22 DMR24 DMR24 opto 22 DMR24 DMR24 opto 22 Relay Signal Relay Signal Signal Relay Signal Signal DIN1 a Pao ko PCO k2 span K9 DN2 Pa ka PAS EN PM EM PAS K1 P K2 P K3 P Ka P K5 P Ke P 0 1 2 3 4 5 6 7 A A A A A A A A DIN8 QC EXTINT DIN9 3 4 DIGITAL GND DINO 5 6 DIGITAL GND DIN DIGITAL GND DIN20 2 40 DIGITAL GND DIN21 G2 DIGITAL GND DIN22 362 DIGITAL GND DIN23 GGe DIGITAL GND DIN12 258 DIGITAL GND DIN13 DIGITAL GND DIN14 62 DIGITAL GND DIN15 G DIGITAL GND DIN16 5 6 DIGITAL GND DIN17 629 DIGITAL GND DIN18 DIGITAL GND DIN19 69G2 DIGITAL GND DINO G3 G2 DIGITAL GND DINI GGS DIGITAL GND DIN2 GDG DIGITAL GND DIN3 DIGITAL GND DIN4 DIGITAL GND DINS DIGITAL GND DING DIGITAL GND DIN7 DIGITAL GND 5 VOLTS DIGITAL GND Fig 3 P1 1 0 Connector Pin Assignments To further expand the number of relays you can control using your digital I O lines you can use the daisy chain connector on the DMR24 board P2 The signals at this connector are
5. DMR24 Mechanical Relay Output Board User s Manual N00 Real Time Devices USA Inc ee eso Accessing the Analog World Publication No DMR24 9742 DMR24 User s Manual TTD REAL TIME DEVICES USA Post Office Box 906 State College Pennsylvania16804 Phone 814 234 8087 FAX 814 234 5218 Published by Real Time Devices USA Inc P O Box 906 State College PA 16804 Copyright 1997 by Real Time Devices Inc Allrights reserved Printed in U S A Rev A 9742 INTRODUCTION The DMR24 mechanical relay output board provides 8 16 or 24 electromechanical single pole double throw relays for general purpose switching applications Driven by the digital output lines available on Real Time Devices opto 22 compatible digital control boards the DMR24 features 8 16 or 24 SPDT relays with 120 volt 2A rating On board relay driver circuits LED indicators to monitor relay activity e Direct compatibility with DIO24 DIO48 DM5802 DM5804 amp DM5808 digital control boards On board screw terminals for easy wiring What Comes With Your Board You receive the following items in your DMR24 package DMR24 mechanical relay output board with 8 16 or 24 relay output channels customer specified User s manual If any item is missing or damaged please call Real Time Devices Customer Service Department at 814 234 8087 If you require service outside the U S cont
6. act your local distributor In addition to the items included in your DMR24 package Real Time Devices offers a full line of board accessories including the TB50 terminal board and XB50 prototype terminal board which can be connected to the daisy chain connector for prototype development and easy signal access Using This Manual This manual is intended to help you get your new board running quickly while also providing enough detail about the board and its functions so that you can enjoy maximum use of its features even in the most complex applications We assume that you already have an understanding of data acquisition and control principles and that you can provide the software necessary to control the DMR24 board When You Need Help This documentation package should provide enough information for you to achieve your desired results If you have any problems using this board contact our Technical Support Department 814 234 8087 during regular business hours eastern standard time or eastern daylight time or send a FAX requesting assistance to 814 234 5218 When sending a FAX request please include your company s name and address your name your telephone number and a brief description of the problem DMR24 DESCRIPTION Board Settings The DMR24 board has jumper settings you can change if necessary for your application The factory settings are listed in this section Should you need to change these settings use these easy to fo
7. identical to the pinout of your opto 22 compatible digital control board You can connect to another DMR24 each digital output line will now control two relays one on each DMR24 board or to a TB50 or XB50 breakout board to easily access all of the digital control board signals Our technical staff will gladly help you select the accessories you need for your application Connecting to the Signal Sources One digital output line from your opto 22 compatible digital control board is required to control each relay These lines are labeled DINO through DIN23 on the DMR24 P1 connector pinout because they are inputs to the DMR 24 board These lines are programmed through your digital control board For normally open operation of your relay the relay is open when the control line is low and closed when the control line is high For normally closed operation the relay is closed when the control line is low and open when the control line is high When the relay is energized its LED status indicator lights Since your digital control board s digital I O is provided by an 8255 programmable peripheral interface PPI you must set up the lines that you use for the DMR24 as mode 0 outputs The interface board manual tells you how to set up the PPI TB1 and TB2 are 36 terminal miniature screw terminal strips which let you easily connect and disconnect the relay outputs to external devices When operating the relay as a normally open switch open low and closed
8. llow instructions Figure 1 shows the board layout 0000000000000000000000000 0000000000000000000000000 0000000000000000000000000 0000000000000000000000000 POWER SOURCE RN7 LED18 a 9 O O O o LED24 DMR24 RELAY OUTPUT BOARD Accessing the Analog World o lo ele Bie al lo G LED14 oo ss olo o o o o 000000000000000000000000000000000000 O 6 o o B o 00000000 o O 000000000 00000000 a lo lo o o n O o o 6 o 2 O n o o o o o 8 O O K5 LED5 n x o Ke tens 2 2 a 8 8 o K7 LED7 IQ X 8 y o K8 LEDS 2 2 8 g o RN6 K9 a Leoo JO o Kio o 00000000 n o o o 00000000 a O O O o 0000000000 O n o O O O o o O n elo o o o o o B o o O n o o o RN9 o 00000000 ae o o 00000000 O n o o o lo oj lo S R n o o o LED23 o 6 o o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O K2 o o eg o o o o K3 O O 0 n CD o o o o K4 Oo 0 O n CD o o o o O O O n CD oO o o Le O O O n CD o o o o O O 0 n ED oO o o O O 0 n D o o o o O O O n CD o o o O O 0 n ED o o o o O O 0 n ED o o o lo o lo nj io 0000000000 00000000 0000000 O n o o o ds o O B o o Made in USA USA Copyright C 1393 Real Time Device
9. s Inc State College PA 16804 USA Fig 1 DMR24 Board Layout P3 Internal External Power Source 5 Volts Factory Setting 5V INT Header connector P3 shown in Figure 2 lets you select the power source for the DMR24 Each relay consumes about 80 mA when energized so the maximum current requirement for all relays energized simultaneously is about 1 92 A Taking this much current from the computer s 5 volt power bus could overload the PC s 5 volt supply if you have other circuitry drawing high current such as two or three DMR24 boards daisy chained P3 lets you jumper to an external 5 volt power supply The external power source is connected to the DMR24 board at TB3 5V and GND located in the upper left area of the board LU P3 O tc O o tc E E E zu 2 Fig 2 Internal External Power Source Jumper P3 J1 Through J24 Bypass Jumper These jumpers allow you to bypass the relay circuit when a relay is not installed so that the digital control signal is available at the corresponding DMR24 terminal Jumpers are installed at the factory in all unused relay positions on 8 and 16 relay boards TB3 1 EXT IRQ External Interrupt This terminal on TB3 provides direct access to the external interrupt signal available at pin 2 on the digital control board s 1 O connector Connecting to the opto 22 Digital Control Board Figure 3 shows the DMR24 s P1 I O connector pinout with all of the pins used by

DMR24 Mechanical Relay Output Board User`s Manual

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