Bulletin No. ZOD/ZOH-A
Drawing No. LP0735
Released 03/10
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
MODELS ZOD AND ZOH - THRU-BORE ROTARY PULSE GENERATORS
(ZOH REPLACES THE MODEL RPGO)
GENERAL DESCRIPTION
The Model ZOD and ZOH are Thru-Bore Encoders. The ZOD has a bore of
0.25" (6.35 mm) and the ZOH is a 0.375" (9.5 mm) bore. These units are ideal
for applications requiring a miniature, high precision, low cost encoder,
designed with all metal construction for years of trouble-free operation.
The encoders have a flexible butterfly mount and blind hollow shaft. These
encoders use two set screws that are 90° apart to clamp the encoder's hub to the
motor shaft. The NPN Open Collector outputs are each current limited to 100
mA. The outputs are standard quadrature with index, and are available in
resolutions up to 2500 pulses per shaft revolution. The quadrature separation is
typically 90 electrical degrees. Output A leads output B for clockwise rotation
of the encoder shaft.
SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Open Collector Output Wiring
1. SUPPLY VOLTAGE: 4.75 to 28 VDC, 100 mA max. with no output load
2. OUTPUTS: NPN Open Collector Transistor, VOH = 30 VDC max.; 20 mA
max. current. Incremental - Two square waves in quadrature with A leading
B for clockwise rotation.
The ZOD and ZOH encoders have open collector outputs. An open collector
output brings the uncommitted collector of the encoder switching device to the
external world. Because the collector element is not associated with the sensor
supply voltage, the sensor output collector may be “pulled up” to external
voltages different than the encoder supply voltage (30 VDC maximum). NPN
open collector outputs are current sinking devices. An output signal will not be
generated unless a pull-up resistor is connected from the open-collector to the
positive side of an external supply. The same supply can be used for powering
the unit and for the pull-up resistor.
3. MAX. FREQUENCY: 200 KHz
4. INDEX: NPN Open Collector Transistor, VOH = 30 VDC max.; 20 mA max.
current. Once per revolution centered over output Channel A. Index is a
positive going pulse.
5. NOISE IMMUNITY: Tested to BS EN61000-6-2; BS EN50081-2;
BS EN61000-4-2; BS EN61000-4-3; BS EN61000-4-6; BS EN500811
6. SYMMETRY: 180° (±18°) electrical
7. QUAD PHASING: 90° (±22.5°) electrical
8. MIN EDGE SEP: 67.5° electrical
DIMENSIONS In inches (mm)
9. ACCURACY: Within 0.017° mechanical or 1 arc minute from true
position (for PPR>189)
0.80 (20.3)
BLIND BORE DEPTH
M3 OR 6-32
MAX. SCREW SIZE
CABLE LENGTH
36 (914.4) STANDARD
0.07 (1.8)
MECHANICAL SPECIFICATIONS
1. MAXIMUM MECHANICAL SPEED: 8000 RPM
2. BORE SIZE:
M3 SET SCREWS
2X 90°
Ø1.811
(46.0)
ZOD: 0.25" (6.35 mm)
ZOH: 0.375" (9.5 mm)
Ø2.16
(54.9)
3. BORE TOLERANCE: -0.0000"/+0.0006"
4. USER SHAFT TOLERANCES:
Radial Runout: 0.008" max
1.00 (25.4)
30.00°
ROTATIONAL ADJUSTMENT
Axial Endplay: +/- 0.030" max
5. STARTING TORQUE: 0.6 oz-in (4.24 N-mm)
6. MOMENT OF INERTIA:
ORDERING INFORMATION
6.7 x 10-5 oz-in-sec2 (4.8 gm-cm2)
7. ELECTRICAL CONNECTIONS:
Cable is 36" (914.4 mm) in length with 24 AWG conductors w/shield.
PART NUMBER
MODEL NO.
DESCRIPTION
PPR
0.25" Thru-Bore 0.375" Thru-Bore
FUNCTION
+VDC
WIRE COLOR
Red
60
ZOD0060A
ZOD0100A
ZOD0500A
ZOD0600A
ZOD1000A
ZOD1200A
ZOD2000A
ZOD2500A
ZOH0060A
ZOH0100A
ZOH0500A
ZOH0600A
ZOH1000A
ZOH1200A
ZOH2000A
ZOH2500A
100
Common
Data A
Black
500
White
ZOD
&
ZOH
600
Thru-Bore Rotary Pulse
Generators
Data B
Green
Index Z
Orange
1000
1200
2000
2500
8. MOUNTING: 1.811 (46 mm) slotted flex mount
9. WEIGHT: 3 oz. (85.0 g)
ENVIRONMENTAL SPECIFICATIONS
1. OPERATING TEMPERATURE: -20°C to 85°C
2. STORAGE TEMPERATURE: -25°C to +85°C
3. HUMIDITY: 98% RH non-condensing
4. VIBRATION: 10 g @ 58 to 500 Hz
5. SHOCK: 80 g @ 11 msec duration
6. SEALING: IP64
Only factory stocked part numbers are listed. Consult factory for part
number and availability of other PPR and output configurations.
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