1-800-366-5412 • www.encoder.com • sales@encoder.com
MODEL 702 SPECIFICATIONS
Electrical
Input Voltage ............4.75 to 28 VDC max for temperatures
up to 70° C
4.75 to 24 VDC for temperatures between
70° C and 100° C
Input Current ............ 100 mA max with no output load
Input Ripple .............. 100 mV peak-to-peak at 0 to 100 kHz
Output Format.......... Incremental – Two square waves in
quadrature with channel A leading B for
clockwise shaft rotation, as viewed from
the encoder mounting face.
See Waveform Diagrams.
Output Types ............ Open Collector – 100 mA max per channel
Pull-Up – Open Collector with 2.2K ohm
internal resistor, 100 mA max per channel
Push-Pull – 20 mA max per channel
Line Driver – 20 mA max per channel
(Meets RS 422 at 5 VDC supply)
Index ......................... Occurs once per revolution. The index for
units >3000 CPR is 90° gated to Outputs A
and B. See Waveform Diagrams.
Max Frequency ......... Up to 1 MHz
Electrical Protection .. Reverse voltage and output short circuit
protected. NOTE: Sustained reverse
voltage may result in permanent damage.
Noise Immunity ........ Tested to BS EN61000-4-2; IEC801-3;
BS EN61000-4-4; DDENV 50141;
DDENV 50204; BS EN55022
(with European compliance option);
BS EN61000-6-2; BS EN50081-2
Symmetry ................. 1 to 6000 CPR: 180° (±18°) electrical at 100
kHz output
6001 to 20,480 CPR: 180° (±36°) electrical
Quad Phasing............ 1 to 6000 CPR: 90° (±22.5°) electrical at
100 kHz output
6001 to 20,480 CPR: 90° (±36°) electrical
Min Edge Sep .............. 1 to 6000 CPR: 67.5° electrical at 100 kHz output
6001 to 20,480 CPR: 54° electrical
>20,480 CPR: 50° electrical
Rise Time .................. Less than 1 microsecond
Accuracy .................... Instrument and Quadrature Error: For 200
to 1999 CPR, 0.017° mechanical (1.0 arc
minutes) from one cycle to any other cycle.
For 2000 to 3000 CPR, 0.01° mechanical
(0.6 arc minutes) from one cycle to any
other cycle. Interpolation error (units >
3000 CPR only) within 0.005° mechanical.
(Total Optical Encoder Error = Instrument +
Quadrature + Interpolation)
Mechanical
Max Shaft Speed ...... 8000 RPM. Higher shaft speeds may be
achievable, contact Customer Service.
Shaft Rotation ........... Bi-directional
Radial Shaft Load ...... 80 lb max. Rated load of 20 to 40 lb for
bearing life of 1.5 x 10
9
revolutions
Axial Shaft Load ........ 80 lb max. Rated load of 20 to 40 lb for
bearing life of 1.5 x 10
9
revolutions
Starting Torque ......... 1.0 oz-in typical with IP64 seal or no seal
3.0 oz-in typical with IP66 shaft seal
7.0 oz-in typical with IP67 shaft seal
Moment of Inertia .... 5.2 x 10
-4
oz-in-sec
2
Housing ..................... Black non-corrosive finish
Bearings....................Precision ABEC ball bearings
Weight ....................... 11 oz typical
Environmental
Storage Temp ........... -25° to 85° C
Humidity................... 98% RH non-condensing
Vibration................... 20 g @ 58 to 500 Hz
Shock ........................ 75 g @ 11 ms duration
Sealing ...................... IP50 standard; IP64, IP66 or IP67 optional
All dimensions are in inches with a tolerance of +0.005" or +0.01"unlessotherwisespecied.
OPTIONAL PILOTS FOR FLANGE AND SERVO MOUNTS
(G, T, D, R) (L, U, E, Q)
702-BOSSB
Ø1.249
+.000
-.002
0.120
702-BOSS2
Ø0.6870
±0.0005
0.120
P
TOLERANCE
ISSUE DATE
ENCODER PRODUCTS COMPANY
6-32 UNC-2B
0.25 DEEP
3X 120° Ø1.750 B.C.
702SER3
CONNECTORS AVAILABLE
0.625
0.050
0.075
Ø2.00
0.600
0.200
0.050
0.100
2.00
0.60
0.50
Ø2.000
0.75
0.87
MODEL 702 2.0" SERVO MOUNT (P)
MODEL 702 2.0" SERVO MOUNT (S)
P
TOLERANCE
ISSUE DATE
ENCODER PRODUCTS COMPANY
702SER1
CONNECTORS AVAILABLE
0.625
0.050
0.075
Ø2.00
0.600
0.200
0.050
0.100
2.00
0.60
0.50
Ø2.000
0.75
4-40 UNC-2B
0.25 DEEP
3X 120° Ø1.500 B.C.
0.87
MODEL 702 2.0" SERVO MOUNT (C)
P
TOLERANCE
ISSUE DATE
ENCODER PRODUCTS COMPANY
10-32 UNF-2B
0.25 DEEP
4X 90° 1.625 B.C.
702SER2
SIDE OR END MOUNT
CONNECTORS AVAILABLE
0.625
0.050
0.075
Ø2.00
0.600
0.200
0.050
0.100
2.00
0.60
0.50
Ø2.000
0.75
0.87