HEDS-9731#B50 Avago Technologies US Inc., HEDS-9731#B50 Datasheet - Page 3

• Manufacturer Part Number: HEDS-9731#B50
• Description: Encoders 2 Channel 1000CPR
• Manufacturer: Avago Technologies US Inc.
• Type: Optical Encoderr

Specifications of HEDS-9731#B50

• Number Of Channels: 2
• Mounting Style: PCB
• Supply Voltage: 5 V
• Product: Optical
• Technology: Rotary
• Pulses Per Revolution: 1000 CPR
• Termination Style: Solder Pin
• Detents: No
• Motion: Rotary
• Index Output: Not Indexed
• Encoder Signal: Digital
• Built In Switch: No
• Operating Supply Voltage (typ): 5VDC
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 85C
• Terminal Type: PC Pins
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Output Waveforms
Definitions
Count (N) = The number of bar and window pairs or counts
per revolution (CPR) of the codewheel, or the number of
lines per inch of the codestrip (LPI).
1 Shaft Rotation = 360 mechanical degrees
1 cycle (c)
Pulse Width (P): The number of electrical degrees that an
output is high during one cycle. This value is nominally
180°e or 1/ cycle.
3
= N cycles
= 360 electrical degrees (°e)
= 1 bar and window pair
Pulse Width Error (ΔP): The deviation, in electrical degrees,
of the pulse width from its ideal value of 180°e.
State Width (S): The number of electrical degrees between
a transition in the output of channel A and the neighbor-
ing transition in the output of channel B. There are 4 states
per cycle, each nominally 90°e.
State Width Error (ΔS): The deviation, in electrical degrees,
of each state width from its ideal value of 90°e.
Phase (φ): The number of electrical degrees between the
center of the high state of channel A and the center of the
high state of channel B. This value is nominally 90°e for
quadrature output.
Phase Error (Δφ): The deviation of the phase from its ideal
value of 90°e.
Direction of Rotation: When the codewheel rotates
counterclock­wise, as viewed look­ing down on the module
(so the mark­ing is visible), channel A will lead channel B. If
the codewheel rotates in the opposite direction, channel
B will lead channel A.
Optical Radius (Rop): The distance from the codewheel’s
center of rotation to the optical center (O.C.) of the
encoder module.
Angular Misalignment Error (E
of the sensor in relation to the tangential direction. This
applies for both rotary and linear motion.
Mounting Position (R
of rotation to center of Alignment Tab receiving hole.
M
): Distance from Motor Shaft center
A
): angular misalignment