Installation Data (Catalog Number 2755-NB0, -NB1, -NB2) This document shows how to install the following components in the 2755-DSxx ➀ and 2755-DDxx ➀ Bar Code Decoders. I/O Module Board (Catalog No. 2755-NB1 and -NB2). I/O Connector and Cables (Catalog No. 2755-NB0). I/O Modules supplied with Catalog No. 2755-NB2. The I/O modules are also available as separate catalog numbers as shown on page 2. Installing I/O Module Board (Catalog No. 2755-NB1,-NB2) This section shows how to install the I/O Module Board (Catalog No. 2755-NB1 and -NB2) in the decoder. Refer to igure 1 during installation. To install the I/O Module Board: 1. Remove AC power from decoder. ATTENTION: Remove power from decoder before installing the I/O Module Board. ailure to do so could result in personal injury. ATTENTION: ESD (Electrostatic Discharge) may cause damage to electronic equipment. Take standard precautions to minimize the possibility of an electrostatic discharge when installing this option. 2. Loosen the two cover screws and open decoder cover. 3. Locate the four metal standoffs and one plastic support standoff on the logic board. Also locate the connector on the logic board labeled CON9 DISCRETE I/O. Align the I/O Board so that the connector strip is positioned over CON9 DISCRETE I/O. 4. Place the I/O Module Board over the standoffs so that the plastic center support snaps into the center hole on the I/O Board. Press down firmly. ➀ Catalog numbers are incomplete. The 2755-DS and -DD decoders are available in different configurations.
2 Bulletin 2755 I/O Module Board and Connector 5. asten the four corners of the I/O Board using the (4) #6-32 screws supplied. Tighten to a torque of 11 ±2 in-lbs. 6. Insert the connector end of the flat cable into the CON9 DISCRETE I/O connector on the logic board and press firmly until seated. igure 1 Optional LCD Display CON9 Discrete I/O I/O Module Board ÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍ ÍÍÍÍÍÍ ÍÍÍÍÍÍ ÍÍ ÍÍ #6-32 Mtg. Screws (4) Plastic Center Post Catalog No. 2755-NB2 is supplied with (2) DC output modules and (1) DC input module. The specifications for these modules is shown in the tables below. or details on how to install the modules in the I/O Board, see the section on Installing I/O Modules. (2) DC Output Modules (functions as a switch not as a power source) Catalog Number Maximum Voltage Minimum Voltage Maximum Peak Off State Voltage Maximum Peak Off State Leakage Maximum On-State Current Minimum On-State Current Maximum 1 Second Surge Peak On-State Voltage 2755 0B5S 60 VDC 3.0 VDC 60 VDC 1.0 ma 0.5 A DC 10 ma DC 1.5 A DC 1.5 V DC (1) DC Input Module Catalog Number Maximum Input Voltage Minimum Line Voltage Input Resistance Maximum Input Current Drop Out Current Allowable Off-State Input Current Allowable Off-State Input Voltage 2755 IB5S 32 VDC 3.3 VDC 1 k ohm 32mA DC @32VDC 1.0 ma DC 1.0 ma DC 2.0 VDC or details on the availability of other I/O modules, see decoder User Manual.
Bulletin 2755 I/O Module Board and Connector 3 Installing I/O Connector (Catalog No. 2755-NB0) This section shows how to install the Catalog No. 2755-NB0 I/O Connector in the decoder. Refer to igure 2 during installation. The Catalog No. 2755-NB0 I/O Connector is shipped with: Connector Washer Cable (6 foot/1.83 meter) Nut Note: The connector wires to the I/O Module Board. See the Wiring I/O Modules section for details. To install the I/O Connector: 1. Remove AC power from decoder. ATTENTION: Remove power from decoder before installing the I/O Connectors. ailure to do so could result in personal injury. ATTENTION: ESD (Electrostatic Discharge) may cause damage to electronic equipment. Take standard precautions to minimize the possibility of an electrostatic discharge when installing this option. 2. Loosen the two cover screws and open decoder cover. 3. Remove the plug from one of the I/O module wiring holes on the decoder enclosure. or a NEMA Type 1 enclosure, squeeze the two tabs inward while pushing the plug out from the inside. or a NEMA Type 4 enclosure, push outward with your finger on the center of the plug while pressing down on the inside lip of the plug.
4 Bulletin 2755 I/O Module Board and Connector 4. Remove I/O Connector and parts from the package. 5. Slip the rubber washer over the wires and down over the threads to the flange on the connector. 6. Insert the wire end of the connector into the I/O module wiring hole of the decoder until the washer and connector flange are seated against the outside of the enclosure. 7. Slip the lock nut over the end of the wires and tighten the lock nut to a torque of 70-100 in-lbs while holding the connector. ATTENTION: Torque the lock nut only. Do not torque the connector itself. Repeat steps 3-7 for the second connector, if required.
Bulletin 2755 I/O Module Board and Connector 5 igure 2 I/O Module Wiring Holes Switch and Power Connector Area Locknut Washer I/O Connector Locknut Washer I/O Connector Wiring I/O Modules This section shows how to wire the cables of the I/O Connector (Catalog No. 2755-NB0) to the I/O modules. Refer to igure 3 during installation. Below each module position on the I/O board is a terminal block connector which accepts up to 12 gauge wire. To wire each output module: 1. Strip 1/4 inch of the insulation from cable wires (removing wire particles). 2. Loosen terminal screws on pull-apart connector. or easier installation, remove connector from the I/O board by gently lifting the connector. 3. Insert wires into connector. Note polarity on module connectors when installing DC modules. 4. Tighten terminal screws on connector to secure the wires. 5. Replace pull-apart connector (if removed from I/O board).
6 Bulletin 2755 I/O Module Board and Connector igure 3 I/O Board I/O Modules MOD1 MOD2 MOD3 MOD4 MOD5 MOD6 MOD7 MOD8 MOD8 accepts input or output module Hold Down Screws Module Pull-Apart Connectors (8) 1 + 1 2 + 3 + 4 + 2 3 4 5 + 6 + 7 + 8 + 5 6 7 8 + 12 V DC 12V DC Power Source 100mA Max Locknut Washer Locknut Washer Recommended Wiring Pin # Wire Color Left Right Orange Blue White/Black Black White Red Green Red/Black 1 1+ 2 2+ 3 3+ 4 4+ 5 5+ 6 6+ 7 7+ 8 8+ I/O Connector I/O Connector I/O Connector Wiring 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + BLUE ORANGE WHITE/BLACK BLACK WHITE RED GREEN RED/BLACK BLUE ORANGE WHITE/BLACK BLACK WHITE RED GREEN RED/BLACK
Bulletin 2755 I/O Module Board and Connector 7 Installing I/O Modules This section shows how to install I/O modules. Refer to igure 3 during installation. The 2755-NB2 I/O Board is supplied with (2) DC output modules and (1) DC input module. igure 3 shows the output modules installed in positions MOD1 and MOD2. The input module is installed in position MOD8. To install modules in the I/O board: 1. Remove AC power from decoder. ATTENTION: Remove power from decoder before installing the I/O Modules. ailure to do so could result in personal injury. ATTENTION: ESD (Electrostatic Discharge) may cause damage to electronic equipment. Take standard precautions to minimize the possibility of an electrostatic discharge when installing I/O modules. 2. Loosen the two cover screws and open decoder cover. 3. Plug module into MOD position on I/O board. Carefully align module pins over sockets in board before inserting module. Note: Module pins must puncture the silicon seal of the I/O board sockets. 4. Tighten the hold-down screw to secure module in position.
8 Bulletin 2755 I/O Module Board and Connector Allen-Bradley, a Rockwell Automation Business, has been helping its customers improve productivity and quality for more than 90 years. We design, manufacture and support a broad range of automation products worldwide. They include logic processors, power and motion control devices, operator interfaces, sensors and a variety of software. Rockwell is one of the world s leading technology companies. Worldwide representation. Argentina Australia Austria Bahrain Belgium Brazil Bulgaria Canada Chile China, PRC Colombia Costa Rica Croatia Cyprus Czech Republic Denmark Ecuador Egypt El Salvador inland rance Germany Greece Guatemala Honduras Hong Kong Hungary Iceland India Indonesia Ireland Israel Italy Jamaica Japan Jordan Korea Kuwait Lebanon Malaysia Mexico Netherlands New Zealand Norway Pakistan Peru Philippines Poland Portugal Puerto Rico Qatar Romania Russia CIS Saudi Arabia Singapore Slovakia Slovenia South Africa, Republic Spain Sweden Switzerland Taiwan Thailand Turkey United Arab Emirates United Kingdom United States Uruguay Venezuela Yugoslavia Allen-Bradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382-2000 ax: (1) 414 382-4444 40062-232-01(B) Copyright 1995 Allen-Bradley Company, Inc. Printed in USA