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Installation Instructions for the

SMART Position Sensor,

35 mm, 75 mm and 225 mm Linear

Conﬁgurations

Issue 4

50046793

GENERAL INFORMATION

Why is the SMART Position Sensor smart? SMART means

that this is a sensor that can essentially think for itself. The

SMART Position Sensor has the ability to self-calibrate be-

cause it uses a patented combination of an ASIC (Application-

Specic Integrated Circuit) and an array of MR (magnetoresis-

tive) sensors to accurately and reliably determine the position

of a magnet attached to a moving object (e.g., elevator, valve,

machinery, etc.) so that the object’s position can be deter-

mined.

The MR array measures the output of the MR sensors

mounted along the magnet’s direction of travel. The output and

the MR sensor sequence determine the nearest pair of MR

sensors to the center of the magnet location. The output of

these two MR sensors is then used to determine the position

of the magnet between them. With this sensor, Honeywell

has utilized MR technology through the ASIC at a level never

before accomplished.

MOUNTING AND WIRING INFORMATION (See Fig. 2.)

1. Locate sensor and magnet in desired position. Ensure:

• Air gap between sensor and magnet does not exceed

that given in Table 1.

• Alignment of magnet along length of sensor does not

exceed 2,0 ±2,5 mm [0.078 ±0.098 in] from the center line

of each component.

2. Mount sensor:

• Drill two holes, one for each mounting ear.

• Secure sensor using two ¼-20 or M6 screws through each

mounting ear.

• Torque screws to 6 N m to 10 N m [53.1 in lb to 88.5 in lb].

3. Mount magnet (Does not apply to 35 mm version.):

• Drill two holes:

- One for the single mounting ear.

- One at 10,25 ±0.10 mm [0.403 ±0.004] dia., and at least

3 mm [0.118 in] deep, for the mounting dog (helps stabilize

magnet).

• While ensuring the mounting dog is seated in its hole,

secure magnet using one ¼-20 or M6 screw through the

mounting ear.

• Torque screws to 6 N m to 10 N m [53.1 in lb to 88.5 in lb].

4. Wire sensor according to the lead colors given in Table 1.

(Does not apply to 35 mm version.)

Sensing and Control

Summary of content (7 pages)

PAGE 1
Installation Instructions for the SMART Position Sensor, 35 mm, 75 mm and 225 mm Linear Configurations Issue 4 50046793 GENERAL INFORMATION MOUNTING AND WIRING INFORMATION (See Fig. 2.) Why is the SMART Position Sensor smart? SMART means 1. Locate sensor and magnet in desired position. Ensure: that this is a sensor that can essentially think for itself.
PAGE 2
SMART Position Sensor, 35 mm, 75 mm and 225 mm Linear Configurations ISSUE 4 50046793 Table 1. Specifications Characteristic Component Sensing range Resolution Supply voltage Output Supply current Linearity1 Reverse polarity Sensitivity Update rate Baud rate Initial startup time sensor only Cable bend radius Operating temperature Storage temperature Air gap Conducted immunity 35 mm analog (SPS-L035-LATS) 0 mm to 35 mm [0 in to 1.38 in] 0.04 mm [0.0016 in] 4.75 Vdc to 5.25 Vdc 0.55 Vdc to 4.
PAGE 3
SMART Position Sensor, 35 mm, 75 mm and 225 mm Linear Configurations ISSUE 4 50046793 Figure 1. SPS-L035-LATS Dimensional Drawing (for reference only: mm) and Sensor Output Performance Graph Pinout 1 = Vcc 2 = GND 3 = Output 4.8 Linearity 1.0% of Full Scale 5.0 4.5 Output Signal (V) 4.15 4.0 Reference Point B 3.0 Notes: A = Sensor B = Magnet actuator C = Mounting ear D = Sensor seating surface E = Magnet seating surface F = Sensing range L = Length 2.
PAGE 4
SMART Position Sensor, 35 mm, 75 mm and 225 mm Linear Configurations ISSUE 4 50046793 Figure 2. SPS-L075-HALS Dimensional Drawing (for reference only: mm) and Sensor Output Performance Graph Wiring Red = Vcc Black = GND Green = Output Reference Point A Linearity 0.4% of Full Scale Output Signal (V) 5.0 4.310 4.0 3.0 Nominal Signal Output Curve (Through Reference Points A and B) 2.0 1.0 0.
PAGE 5
SMART Position Sensor, 35 mm, 75 mm and 225 mm Linear Configurations ISSUE 4 50046793 Figure 3. SPS-L225-HALS Dimensional Drawing (for reference only: mm) and Sensor Output Performance Graph Wiring Red = Vcc Black = GND Green = Output Notes: A = Sensor B = Magnet actuator C = Mounting ear D = Mounting dog L = Length Reference Point A Linearity 0.4% of Full Scale Output Signal (V) 5.0 4.5 4.0 3.0 Nominal Signal Output Curve (Through Reference Points A and B) 2.0 1.0 0.
PAGE 6
SMART Position Sensor, 35 mm, 75 mm and 225 mm Linear Configurations ISSUE 4 50046793 Figure 4. SPS-L225-HDLS Dimensional Drawing (for reference only: mm) and Sensor Output Performance Graph Wiring Red = Vcc Black = GND Green = Output Notes: A = Sensor B = Magnet actuator C = Mounting ear D = Mounting dog L = Length Reference Point A Linearity 0.
PAGE 7
SMART Position Sensor, 35 mm, 75 mm and 225 mm Linear Configurations WARNING 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. WARRANTY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship.