Grayhill Encoders User Manual

Optical Encoders

Shock Resistance: Test 1: 100g for 6 mS, half­sine wave with velocity change of 12.3 ft/s. Test
2: 100g for 6 mS, sawtooth wave with velocity
change of 9.7 ft/s.

Materials and Finishes

Bushing: Aluminum
Code Housing: Hiloy 610B
Shaft: Stainless steel
Retaining Ring: Stainless steel
Code Rotor and Aperture: Chemically etched

stainless steel/electroformed nickel

ORDERING INFORMATION

Optical and Mechanical

Encoders

Printed Circuit Board: NEMA Grade FR-4.
Five microinches minimum gold over 100
microinches minimum nickel over copper

Optical Barrier: Polyphenylene sulfide, 94 V-0
Backplate: Polyester
Header: Phosphor bronze, 200 microinches tin

over 50 microinches nickel (pin version only)

Infrared Emitter: Gallium aluminum arsenide
Photo IC: Planar silicon
Cable: 26 AWG, stranded/tinned wire, PVC

coated on .100 (2,54) centers (cable version
only)

Series
Style: K = Standard, 4-pin, high resolution

KS = Sealed, 4-pin, high resolution
R = Standard, 5-pin, high resolution
RS = Sealed, 5-pin, high resolution

Cycles: per channel per revolution = 25, 32, 50, 64, 100, 128, 256

61RS256 – 060

Cable Termination: 060 = 6.0in. Cable is terminated with Molex Connector P/N

14-56-3056.

Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Dstributor or Grayhill.

ACCESSORIES

Non-Turn Washer

The Series 61 bushing is 3/8 inches in diameter
and has a non-turn keyway to prevent rotation
of the switch body when the panel is cut to fit.
Another way to keep the switch from turning is
to use a non-turn washer. The washer is
brass, tin/zinc plated.
Part number: 12C1087-1
Part number: SHH694-11, 302-2B stainless
steel, no plating

Shaft and Panel Seal

For shaft and panel seal version, the shaft is
sealed by an o-ring inside the bushing. The
panel is sealed by a flat gasket .045" thick at the
base of the bushing. The panel seals will increase
the behind panel dimension by .020" to .040",
when the switch is mounted. The panel seal is
silicon rubber.

DIMENSIONS In inches (and millimeters)

.625 ± .010 DIA.
(15,89 ± 0,25)

.437 + .010 –.000
(11,10 + 0,25 –0,00)

C
L

.120 ± .003
(3,05 ± 0,08)

90˚ ± 1˚

Part Number: 12C1087-1

.032 ± .002
(0,81 ± 0,05)

.005 ± .003
(0,38 ± 0,08)
RADIUS

.125 ± .010
(3,16 ± 0,25)

.530 ± .005

(13,46 ± 0,13)

.625 ± .010
(15,88 ± 0,25) DIA.

90˚ ± 1˚

.120 ± .003
(3,05 ± 0,08)

Part Number: SHH694-11

.032
± .002
(0,81
± 0,05)

.030 (0,76)
RADIUS MAX.

.110
± .003
(2,79
± 0,08)

Encoder

46

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com