1
DESCRIPTION
The Model ZR C-face encoder is a rugged, high resolution, high temperature
(100°C) encoder designed to mount directly on NEMA C-face motors. The ZR
contains a precision bearing and internal coupling that virtually eliminates
inaccuracies induced by motor shaft runout. This encoder is ideal for applications
using high performance AC vector motors.
The thru-shaft design allows fast and simple mounting of the encoder directly
to the accessory shaft or to the drive shaft of the motor, using the standard motor
face (NEMA sizes 56C, 143TC, 145TC, 182C, 184C). The tough anodized
aluminum housing with thru-shaft design resists the vibration and hazards of an
industrial environment. In addition, a C-face gasket kit is included free for motor
shaft protection and enclosure.
Open Collector Output Wiring
The ZR series of sensors 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 (40 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.
SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
1. SUPPLY: 4.75 to 28 VDC, 40 mA current draw typical, 100 mA maximum.
2. OUTPUT: NPN Open Collector transistor , V
OH
= 40 VDC max.; 100 mA
max. current. Incremental - two square waves in quadrature with A leading B
for clockwise rotation. Positive pulse index.
3. CYCLES PER REVOLUTION: 256 or 1024
Note: Review the max. input rate of the RLC counter being used. The high
output rate of the 1024 version will quickly reach the max. input capability
of RLC quadrature counters. At 1024 PPR, high pulse rates are reached at
low RPM.
4. MAX. FREQUENCY: 200 KHz
5. NOISE IMMUNITY: Tested to BS EN61000-4-2; IEC801-3; BS
EN61000-4-4; DDENV 50141; DDENV 50204; BS EN55022; BS
EN61000-6-2; BS EN50081-2
6. SYMMETRY: 180° (±18°) electrical
7. QUAD PHASING: 90° (+22.5) electrical
8. MIN EDGE SEP: 67.5° electrical
9. RISE TIME: Less than 1 microsecond
MECHANICAL SPECIFICATIONS
1. MAX MECHANICAL SPEED: 6000 RPM
2. BORE DIAMETER: 0.625" or 1.0"
3. BORE TOLERANCE: +0.0015"/-0.000"
4. MOMENT OF INERTIA: 3.3 10
-3
oz-in-sec
2
typical
5. USER SHAFT TOLERANCES:
Radial Runout:0.005"
Axial Endplay: ±0.015"
6. ELECTRICAL CONNECTION: 36" (914.4 mm) cable. 24 AWG foil and
braid shield.
7. HOUSING: All metal construction.
8. MOUNTING: NEMA 56C to 184C when proper bore size is selected
9. WEIGHT: 2.60 lb. (1.18 Kg) typical
ENVIRONMENTAL CONDITIONS
1. OPERATING TEMPERATURE: 0 to +100°C @ 4.75 to 24 VDC
0 to +70°C @ 4.75 to 28 VDC
2. STORAGE TEMPERATURE: -25 to +100°C
3. HUMIDITY: 98% RH non-condensing
4. VIBRATION: 10 g @ 58 to 500 Hz
5. SHOCK: 50 g @ 11 msec duration
6. SEALING: IP65 with included shaft cover and gaskets installed.
THRU-SHAFT DESIGN FOR EASY MOUNTING
EXCELLENT CHOICE FOR VECTOR MOTOR DRIVE CONTROL
DESIGNED FOR INDUSTRIAL ENVIRONMENTS
QUADRATURE OUTPUT
POSITIVE INDEX PULSE
C-FACE GASKET KIT INCLUDED
MODEL ZR - C-FACE ENCODER WITH NPN OPEN COLLECTOR OUTPUT
(114.3 )
0.125 (3.18)
0.975
15°
3.000
6.500
DRILLED THRU .386 ON 5.875 DIA
B.C. AT 90° (4) PLACES
TAP THRU 3/8-16 ON 5.875 DIA
B.C. AT 90° (4) PLACES
(114.33 )
4.501
4.500
+.002
-.000
+.000
-.003
-.000
+.050
-.076
+.000
(76.2)
(165.10)
(24.77)
.175
(4.45)
1.75 (44.45)
2.60
(66.04)
ORANGEINDEX Z
BLACKCOMMON
RED+ VDC
WHITEDATA A
GREEN
DIMENSIONS In inches (mm)
DATA B
WIRE COLORFUNCTION
Bulletin No. ZR-A
Drawing No. LP0747
Released 08/11
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
(2 pages)
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