HEDS-9780#G50 Avago Technologies US Inc., HEDS-9780#G50 Datasheet - Page 3

• Manufacturer Part Number: HEDS-9780#G50
• Description: Encoders 2 Channel 360CPR
• Manufacturer: Avago Technologies US Inc.

Specifications of HEDS-9780#G50

• Number Of Channels: 2
• Mounting Style: PCB
• Supply Voltage: 5 V
• Product: Optical
• Technology: Rotary
• Pulses Per Revolution: 360 CPR
• Termination Style: Solder Pin
• 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).
Pulse Width (P): The number of
electrical degrees that an output
is high during one cycle. This
value is nominally 180 e or 1/2
cycle.
3
1 Shaft Rotation = 360
1 cycle (c) = 360 electrical
= N cycles
= 1 bar and
mechanical
degrees
degrees ( e)
window pair
Pulse Width Error ( P): 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 neighboring transition
in the output of channel B. There
are 4 states per cycle, each
nominally 90 e.
State Width Error ( S): The
deviation, in electrical degrees, of
each state width from its ideal
value of 90 e.
Phase ( ): 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 (
the phase from its ideal value of
90 e.
Direction of Rotation: When the
codewheel rotates counterclock-
wise, 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
angular misalignment of the sensor
in relation to the tangential
direction. This applies for both
rotary and linear motion.
Mounting Position (R
from Motor Shaft center of rotation
to center of Alignment Tab
receiving hole.
): The deviation of
M
): Distance
A
):