Installation Instructions for the Issue 5 Enclosed Basic Series Limit Switches 88173 MOUNTING WARNING 1. Mount switches on flat, rigid surface. PERSONAL INJURY E6 Side Mounting Pattern DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product 25,4 mm [1.00 in] could result in personal injury. E6 SIDE MOUNTING Failure to comply with these instructions could result in 2X CLEARANCE HOLE FOR #6 MOUNTING SCREW* death or serious injury. V6 Flange Mounting Pattern GENERAL INFORMATION 41,6 mm 1.63 in • Honeywell’s Enclosed Basic Series of Limit Switches are V6 FLANGE MOUNTING usable in many applications. The wide variety of actuators offered and their robust diecast housing make them ideal for 2X Ø 4,3 mm [0.17 in] MOUNTING HOLES applications that require reliable switching and performance. G1 Side Mounting Pattern There are several styles of enclosed basic switches, includ- ing side and flange mounting switches as well high capacity 75,0 mm [2.95 in] and double pole type. • Refer to switch labeling for applicable electrical ratings and G1 SIDE MOUNTING 31,0 mm [1.22 in] certifications • For technical product support, engineering drawings, 2X Ø 5,5 mm [0.216 in] MOUNTING HOLES technical data, and additional information for products from H1 Flange Mounting Pattern Honeywell’s Enclosed Basic Series of Limit Switches please 41,9 mm visit sensing.honeywell.com, or call the support numbers on 1.65 in the last page of this document. H1 FLANGE MOUNTING 2X Ø 0.22 5,5 mm [0.22 in] MOUNTING HOLES 2. Boot-sealed and side-mounting switches use sealing wash- ers under screw heads on the sides between switch and mounting surface on other side to maintain seal. 3. Unsealed, side mounting switches: Use lockwashers under screw heads on one side; under nut on other side. 4. Connect conduit to conduit opening. Apply conduit sealing if required by application. INSTALLATION TIPS 1. Do not lubricate any internal part of the switch. The inter- nal switch does not require any additional lubrication 2. When installing the switch, ensure that it is not the low point in the conduit run. Doing so will ensure that con- densation created in the conduit will not flow into the switch housing. 3. Do not enlarge the mounting holes on side mounting switch. Doing so will compromise the internal switching ele- ment’s seal integrity. Sensing and Control Enclosed Basic Series Limit Switches ISSUE 5 88173 N18 TYPES FIELD ADJUSTABLE ACTUATOR MODELS If actuator or basic switch is replaced, the actuator may need Some enclosed basic switches are field adjustable. This in- adjustment to duplicate original switch operating point. To adjust cludes models with the nomenclature “2RN2”, ”2RQ2”, ”2RN28”, operating point, remove lower seal band from base of seal boot. ”2RQ28”, “2RN62”, “2RQ62”, “RQ2X2”, “RN2X1”. “Peel back” seal boot to expose bushing. With basic switch unoperated, slowly turn bushing clockwise until basic switch op- ADJUSTABLE RANGE erates. Do not turn further after operating click is heard. Turn bushing back 1/2 turn. Tighten jam nut on bushing. LEVER RETAINING NUT MAINTAINED CONTACT (RESET) MODELS LEVER BASE Listings with an “X” in their part number are maintained contact RETAINING NUT switches. These switches remain actuated after the operating force on either plunger has been applied. The actuated plunger will “reset” when the opposing plunger is actuated. NOTE: The top plungers (the plungers on the stationary portion of the housing) provide more accurate and uniform operation than the “reset” plungers and should be used when closely held operating characteristics are required. ADJUSTABLE RANGE 360~ ABOUT THE PLUNGER AXIS Vertical Adjustment Range N2 & Q2 - Roller lever 225° To adjust: loosen N4 & Q4 - Hand op. 180° hex nut, adjust arm The lever can be adjusted in two ways. The following process to desired position, N62 & Q62 - Rod lever 225° details how to perform the adjustments. tighten hexnut. N28 & Q28 - One way 180° Adjusting the horizontal position of the lever. 1. One lever arm serration: 8.18°. 1. Loosen the lever base retaining nut, so that the lever assem- 2. One serration of lever arm and fluted washer as a unit: 8°. bly is free to rotate about the axis of the plunger. 3. One serration of lever arm with one serration of fluted washer 2. Rotate the lever to the desired position. The lever is adjust- in opposite direction: 0.18°. able 360 degrees about the axis. 3. Once the desired position is reached re-tighten the lever LUBRICATING INSTRUCTIONS for Roller Plunger base retaining nut. The lever base should not be able to Switches only (N80, N81, Q8, Q9, Q81) rotate when properly tightend. For maximum life, periodically put a drop or two of lightweight Adjusting the vertical position of the lever. oil on the roller. Specific application conditions will determine lubricating frequency. 1. Loosen the lever retaining nut, so that the lever freely rotates. 2. Set the position of the lever to the desired position. Roller levers should be positioned so that they are able to actuate the plunger. 3. Once the desired position is reached re-tighten the lever re- taining nut. When pushed the lever should act upon the lever mechanism to actuate the switch. 2 Honeywell Sensing and Control Enclosed Basic Series Limit Switches ISSUE 5 88173 • Once the cover of the flange base is removed the switch WIRING terminals will be exposed. Switch terminals will be labeled • Honeywell’s Enclosed Basic Switches have internal terminals according to the contact they connect to. Please refer the that allow for easy wiring and integration. terminal layout section for more information on circuit dia- • If a side mounting switch is being wired it is possible for the grams and terminal screw layout. switch to be mounted in place before wiring takes place. If • Connect wire to terminals by loosening terminal screws, a flange mounting switch is being used it is likely that that looping wire around the terminal screw shaft, and inside the switching and actuator assembly will need to be wired of the cup washer on SPDT models or looping wire around before mounting switch. the terminal screw shaft and underneath locking washer on DPDT models. Then retighten terminal screws ensuring wires The enclosed basic series switch will have one of two contact and connections are made. forms available. They will either have a single pole double throw • Grounding Terminal, enclosed basic switches have an inter- (SPDT) or a double pole double throw (DPDT) arrangement. The nal grounding screw mounted inside the removable cover or SPDT uses three terminals to wire a set of Common (C), Normally flange base. Open (NO), and Normally Close (NC) contacts. • Replace cover or flange base and retighten cover screws • Remove the cover or the flange base by loosening the two screws that secure it. Standard Enclosed Basic Switch Terminal Layout Single Pole Double Throw (SPDT) Double Pole Double Throw (DPDT) Honeywell Sensing and Control 3 Enclosed Basic Series Limit Switches ISSUE 5 88173 Conduit Sealing Packets REPLACEMENT PARTS AND ACCESSORIES Packet Listing Cable O.D. Basic switch: order according to catalog listing on basic switch 2PA6 10,2 mm to 11,1 mm [0.400 in to 0.435 in] being replaced. Replacement packet includes basic switch, mounting hardware, seal boot and bands where required. 2PA16 11,1 mm to 12,0 mm [0.435 in to 0.470 in] 2PA1 13,5 mm to 14,5 mm [0.530 in to 0.570 in] Actuators or Accessories Part Listing N2 actuator (roller lever) 6PA2 Q2 actuator (roller lever) 6PA1 N28 actuator (one-way roller lever) 6PA16 Q28 actuator (one-way roller lever) 6PA41 N62 actuators (rod lever) 6PA140-E6 Q62 actuators (rod lever) 6PA62 N4 actuators (manual button) 6PA9 Q4 actuators (manual button) 6PA7 N18 actuators (spring) 6PA195 N18 actuators (spring and bushing) 6PA187-E6 Liquid Tight Conduit Fitting Conduit seal 2PA1 Packet Listing Cable O.D. 2PA6 2PA17 4,3 mm to 12,0 mm [0.170 in to 0.470 in] 2PA16 1/2 NPT Seal boot (black elastomer) 10PA2 Seal boot (orange silicon) 10PA1 Bottom cover E6 3PA13-E6 Bottom cover V6 3PA14-V6 Pilot light for BZG/H 15LT1 4 Honeywell Sensing and Control Enclosed Basic Series Limit Switches ISSUE 5 88173 WARRANTY/REMEDY SALES AND SERVICE Honeywell warrants goods of its manufacture as being free of Honeywell serves its customers through a worldwide network of defective materials and faulty workmanship. Honeywell’s stan- sales offices, representatives and distributors. For application dard product warranty applies unless agreed to otherwise by assistance, current specifications, pricing or name of the nearest Honeywell in writing; please refer to your order acknowledgement Authorized Distributor, contact your local sales office or: or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of E-mail: info.sc@honeywell.com coverage, Honeywell will repair or replace, at its option, without Internet: sensing.honeywell.com charge those items it finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed Phone and Fax: or implied, including those of merchantability and fitness for Asia Pacific +65 6355-2828 a particular purpose. In no event shall Honeywell be liable for +65 6445-3033 Fax consequential, special, or indirect damages. Europe +44 (0) 1698 481481 +44 (0) 1698 481676 Fax While we provide application assistance personally, through our Latin America +1-305-805-8188 literature and the Honeywell web site, it is up to the customer to +1-305-883-8257 Fax determine the suitability of the product in the application. USA/Canada +1-800-537-6945 Specifications may change without notice. The information we +1-815-235-6847 supply is believed to be accurate and reliable as of this printing. +1-815-235-6545 Fax However, we assume no responsibility for its use. Sensing and Control Honeywell 1985 Douglas Drive North 88173-5-EN IL50 GLO Printed in USA. Golden Valley, MN 55422 October 2012 www.honeywell.com © 2012 Honeywell International Inc. All rights reserved.