Installation instructions for RDS80001/RDS80002 Series High speed railwheel sensors PK XP-4061 Issue 1 Output current PERSONAL INJURY * DO NOT USE these products as safety or emergency stop devices, or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. General description The RDS80001 and RDS80002 railwheel sensors are 2 wire dc inductive proximity sensors. There are 2 types of output available. Figure 1 RDS80001 Series output current with no target present Supply voltage 20.0 25 V 15 V 16.0 RDS80001 - Sensor output current proportional to applied voltage. Designed to operate at a nominal 16 Vdc with a 1 kOhm load, which will result in an output of 8 mA with no wheel detected and 2 mA when a wheel is detected. RDS80002 - Sensor output current is limited to 2/8 mA within sensor to allow use of voltage overdrive to counter interconnecting cable losses (10 km +) and still maintain 2/8 mA output without field adjustment. 14.0 12.0 10 V 10.0 8.0 6.0 4.0 2.0 0.0 Load resistance (Ohm) Figure 2 RDS80001 output current with target present Supply voltage 4.0 Both types are available in both high and low frequency versions. 30 V 3.5 25 V RDS80001 Supply voltage range Output current (unsensed) Output current (sensed) Maximum output current Operating temperature range Storage temperature range Weight Termination [1] Sensing distance Sn @ 20 oC [Target - 90x50x1 mm St37 steel] Variation in Sn over temperature range Maximum switching frequency [1] RDS80002 10 to 30 Vdc See Figure 1 10mA See Figure 2 2mA 20mA 10mA -40 C to 80 oC -40 C to 85 oC 820 grams 6 m [2 x 0,75 mm2] polyurethane cable 26,5 mm 4 % 10 % Typical current output 10 % (mA) 3.0 Technical information 30 V 20 V 18.0 Typical current output 10 % (mA) WARNING 20 V 2.5 15 V 2.0 10 V 1.5 1.0 0.5 0.0 Load resistance (Ohm) Wiring details WIRING DIAGRAM BRN > 400 Hz The sensing distance of 26,5 mm refers to the distance achieved with a standard steel plate target. When installed on track this can be extend to a maximum of 35 mm as a result of railhead bias. Important please refer to "mounting to rail". Available listings LOAD BLU The sensor is polarity neutral - connection of both positive voltage and negative voltage can be made to either leadwire. For RDS80001 ensure that the load limits the maximum output current to 20 mA at all times. Previous Railwheel Sensors Catalogue Listing RDS80001-L Oscillation Frequency 160 kHz 10 % The RDS80001 is a direct replacement for the 926FS30 Series sensors previously produced by Honeywell. RDS80001-H 230 kHz 10 % 926FS30 Series listing RDS80002-L 160 kHz 10 % 926FS30-060-Z911-H RDS80001-H RDS80002-H 230 kHz 10 % 926FS30-060-Z911-L RDS80001-L Automation and Control Products RDS Equivalent Issue 1 RDS Series Mounting to rail PK XP-4061 Mounting distances X Dimensions H and X, the height below the rail and distance from the rail, will vary according to the track/ wheel interface standard which applies to your application. Please contact Honeywell for further details. H Between sensors of the same oscillating frequency (e.g. H-H and L-L) > 0,25 m between centrelines of sensors. Between sensors of different oscillating frequencies (e.g. H-L) > 0,125 m between centrelines of sensors. This distance corresponds to mounting the sensors as close as the enclosed mounting brackets will allow. For USA only: X = 60,0 mm (2.36 in) H = 43,0 mm to 48,0 mm (1.69 in to 1.89 in) Nominal setting The sensor should be positioned such that the top face of the sensor is 1 mm below the deepest flange (this can be established based on data from the relevant rail authority or by empirical testing). Note: Mounting sensors with different oscillating frequencies at the minimum separation distance of 0,125 m provides an overlapping of signals as the railwheel passes. The sensor side face should be approx. 1-2 mm from the innermost point of the railhead. Mounting components supplied If a sensor is to be mounted on a bend, it should be mounted on the inside of the bend. 4 M5 stainless steel cap screws with 4 mm hexagonal heads Maintenance checks 1 Nitrile rubber gasket (to be installed under sensor as part of shock defence) The setting of a sensor should be checked regularly based on the particular railways requirements, the wear rate of the rails and any safety requirement. 2 Stainless steel retainer clips 4 M5 lock washers Mounting dimensions in mm (inches) for reference only Warranty/remedy Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your local sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace without charge those items it finds defective. The foregoing is Buyer's sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. 1-800-537-6945 USA 1-800-737-3360 Canada 1-815-235-6847 International Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. Europe: +45 39 55 54 03 Denmark +44 (0)1698 481481 UK Honeywell Automation and Control Products www.honeywell.com/sensing Newhouse Industrial Estate Motherwell, Lanarkshire ML1 5SB Scotland, UK PK XP-4061 Issue 1 UK07 GLO 06/02 Printed in UK on environmentally friendly paper Copyright (c) Honeywell 2001. All rights reserved. FAX: 1-815-235-6545 USA FAX: +44 (0)1698 481276 UK e-mail: info.sc@honeywell.com