HS25

Size 25 up to 1200 CPR & 10mm bore

Build Encoder

  • HS25
  • Bore Size
  • Output Type
  • -
  • CPR
  • Anti-Jitter
  • /
  • Supply Voltage
  • Output Circuit
  • Connector
$225.33

HS25

Suggested Accessories

Note: Items typically ship in 3 to 10 days from receipt of order. If you need it faster, please contact us via phone to place your order.

The model HS25 is an industrial strength incremental hollow shaft encoder in a 2.5" housing that mounts directly on an existing shaft.  An anti-rotation pin or tether allows the encoder to float on the shaft without rotating.  The HS25 generates up to 3 square wave outputs and can be configured as a single (A), quadrature (AB) or quadrature with index (ABZ) device.  Dual (AB) and triple (ABC) independent CPR outputs are also available.

Single output models can include the Anti-Jitter feature designed for conveyor and web systems requiring continuous and accurate measurement of the web’s movement even if the system must be stopped and restarted without reset. When the web stops, and if there is sufficient vibration or back-and-forth movement, then the encoder output could oscillate, appearing as if the web were actually moving. Anti-jitter eliminates this condition by significantly increasing the pulse hysteresis.

Features and Options:

  • Size 25 housing
  • Single, quadrature, and index outputs
  • Triple independent outputs
  • Resolution up to 1200 CPR
  • Exclusive “Anti-Jitter” option
  • USAMade in the USA

View FileHS25 Datasheet

Mechanical

 

Shaft Bore: Any up to 3/8", 10mm diameter

Maximum Speed: 3,000 rpm

Shaft Loading:

  • Radial: 5.5 lbs. / 2.5 kg max.
  • Axial: 2.2 lbs. / 1 kg max.

A flexible mounting bracket is recommended

Bearing Life: 42 x 1,000,000/rpm = hours

Materials:

  • Case: Aluminum, anodized
  • Shaft: 303 Stainless steel

Weight: 5.5 oz. (156 grams)

 

 

Electrical Connections

 

9-pin D-sub
Pin No.
4-pin M12
Pin No.
Function Wire
Color
1 3 Common Black
2 1 +vdc Red
3 4 Output A White
4 2 Output B Green
5 - Output Z Brown*
6-9   not used -

*Output Z is green if Output B is not used.

 

 

Electrical

 

Supply Voltages: (specify when ordering)

  • 5 ± 5% VDC
  • 12, 15, or 24 ± 10% VDC
  • 8-30 VDC

Current: 50 mA max (no load)

Pulse Rate: 0 - 30 kHz

Counts per Revolution: 1 to 1200
                 (specify when ordering)

Operating Temperature: 0° to 70° C

Output Circuit: (specify when ordering)

  • Push/Pull (combined sourcing/sinking)
  • Current sinking NPN transistsor with built in pull-up resistor
  • NPN open collector (Vcc=30 vdc max)
  • Current sourcing PNP transistor

Output Current: 50ma max source/sink 

Output Waveshape:
Square wave outputs A and B are 50/50 duty cycle nominal. Output Z (index output) is approximately the width of one cycle on outputs A or B. A leads B by 90° for clockwise rotation when viewed from shaft collar end.

  • Pulse symmetry: 180°±30%
  • Pulse interval jitter: 30% max
  • Quadrature: 90°±30% max
  • Phase jitter: 30% max

Anti-jitter option: (single output models only)
Increases the pulse hysteresis to ½ of a pulse width, eliminating the effects of mechanical vibration and the possible diether that restults in false output pulses.

Direction Output option: (single output models)
Indicates direction of rotation: "high" for clockwise rotation; "low" for counter clockwise. Initially "low" when powered on.

 

 

Accessories
See our website or contact us for more information about Cables, Flexible Mounting Brackets, and the Anti-Rotation Pin

 

 

Installation Notes

 

  1. Slide the HS25 onto the shaft and tighten set screws. Be sure to maintain clearance around the entire encoder body.
  2. Use the anti-rotation screw, flexible mounting bracket, or other means to prevent the encoder from rotating.
  3. Attach the cable leads to the control device (e.g. PLC) ensuring that the power supply meets specifications.
  4. Attach the cable to the encoder.

dimensions

Here is a listing of the suggested Mounting Options. For more information, please click on the part number.

 

Flexible/Rigid Mounting Brackets & Tethers:

MB-FB5: Flexible mounting tether for C-face motor mount, 5" to 8" bolt circle MB-FB1: Flexible mounting bracket
MB-FB5C: Flexible Tether, Conveyor bearing kit 550-SCR808: Anti-rotation Pin (AP)

Here is a listing of the suggested Cable Assembly electrical connections. For more information, please click on the connectors.

 

12mm, 4-pin    
M12.4-3-10 RC: 3 wire, 10ft M12.4-4-10 RC: 4 wire, 10ft  
M12.4-3-20 RC: 3 wire, 20ft M12.4-4-20 RC: 4 wire, 20ft  
M12.4-3-3M RC: 3 wire, 3M M12.4-4-3M RC: 4 wire, 3M  
M12.4-3-6M RC: 3 wire, 6M M12.4-4-6M RC: 4 wire, 6M  

 

   
DB9-pin    
DB9-3-10: 3 wire, 10ft DB9-4-10: 4 wire, 10ft DB9-5-10: 5 wire, 10ft
DB9-3-20: 3 wire, 20ft DB9-4-20: 4 wire, 20ft DB9-5-20: 5 wire, 20ft
DB9-3-3M: 3 wire, 3M DB9-4-3M: 4 wire, 3M DB9-5-3M: 5 wire, 3M
DB9-3-6M: 3 wire, 6M DB9-4-6M: 4 wire, 6M DB9-5-6M: 5 wire, 6M

 

   
DB9-pin, pulse/index outputs    
DB9-4Z-10: 4 wire, 10ft    
DB9-4Z-20: 4 wire, 20ft    
DB9-4Z-3M: 4 wire, 3M    
DB9-4Z-6M: 3 wire, 6M    

Here is a listing of the suggested Shaft Stubs . For more information, please click on the part number.

 

MB-ST.250A: 1/4" dia., .94" stub length, 10-24 thread MB-ST.375A: 3/8" dia., 1-3/4" stub length, #10-24 thread
MB-ST.250: 1/4" dia., 1.7" stub length, 10-24 thread MB-ST.375B: 3/8" dia., 1-3/4" stub length, 3/8-16 thread
MB-ST.312: 5/16" dia., 1.72" stub length, 1/4-20 thread MB-ST-M10: 10mm dia., 27mm stub length, M8 x 1.25 thread
MB-ST.375: 3/8" dia., 1-3/4" stub length, 5/16-18 thread MB-SR.375: Roll pin, 3/8" diameter x 2.25"