Hollow Shaft Encoder - HS25 Series
HS25 - 3/8" Diameter Hollow Shaft
The model HS25 is an optical hollow shaft encoder in a 2-1/2" diameter housing that mounts directly on an existing shaft assembly. An anti-rotation pin or flexible mounting bracket allows the encoder to float on the shaft without rotating. The HS25 generates up to 3 square wave outputs.
Standard Features and Options:
• Up to 3/8" or 10mm shaft bore diameter
• Up to 600 pulses per revolution
• Single, quadrature, and index outputs
• Direction indicator output option
• Anti-jitter feature option
• ESD and short circuit protection on most models
• 5 vdc, 8 to 30 vdc, and other supply voltages
• 9-pin D-Sub or 4-pin M12 connector
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
INSTALLATION NOTES
- Slide the HS25 onto the shaft and tighten set screws. Be sure to maintain clearance around the entire encoder body.
- Use the anti-rotation screw, flexible mounting bracket, or other means to prevent the encoder from rotating.
- Attach the cable leads to the control device (e.g. PLC) ensuring that the power supply meets specifications.
- Attach the cable to the encoder.
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
- Pulses per Revolution: 1 to 600 (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
- Pulse symmetry: 180°±30%
- Pulse interval jitter: 30% max
- Quadrature: 90°±30% max
- Phase jitter: 30% max
- 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.
- 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 dither that results 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.
Popular Models:
HS25B-1000/8-30
HS25B-10AJ/24P
HS25B-1200/24
HS25B-1200/8-30
HS25B-240/8-30
HS25B-600/24
HS25B-600/8-30
HS25B-920/8-30C
HS25BQ-240/24
HS25BQZ-360/5C
HS25CQ-360/3/8-30C M158 M179