Rockwell Automation 847H 2.5 in. Diameter Solid Shaft Incremental Encoders - Manual (Page 2)

2
Specifications
Electrical
Code format Incremental
2 channels with zero index
Signal options,
clockwise rotation viewed from
shaft end A-leads-B, 180° marker gated with A
or
B-leads-A, 180° marker gated with BN
Signal phase relation 90° ± 22° channels
Symmetry 50% ± 10%
Zero index channel Gated 1/2 cycle
Supply current 50 mA
Frequency response 4.5…5.5V line driver output: 820 kHz
8…30V line driver output: 820 kHz
Open collector: 150 kHz
Resolution 1…65536 pulses/revolution
Load current 30 mA for all output types
Output drivers 4.5…5.5V line driver - IC HD2
8…30V line driver - IC HD2
Open collector - 7406
Electrical protection Reverse polarity and short circuit for
all output types
Cable outer diameter 0.25 in (6.2 mm)
Cable type 300V, 105° C, 26 AWG, 9-conductor
with overall braided shield, UL AWM
type 20327 for use in fixed (non-
flexing) installations; RoHs compliant.
Cable bend radius Minimum 5x outer diameter
Mechanical
Maximum operating speed 9,000 RPM
Angular acceleration 500,000 radians/s²
Moment of inertia 15 g•cm²
Startup torque at 20 ºC (68 ºF) 0.8 N•cm
Operating torque at 20 ºC (68 ºF) 0.6 N•cm
Approximate weight [kg (lb)] 0.28 (0.61) with M12 connector
MTTFd (EN ISO 13849-1) 330 years
Shaft loading
80 N radial (20 mm from front bearing)
and 40 N axial provide L10 life of
3.6 x 10
9 revolutions at 9,000 RPM and
80° C ambient temperature.
Shaft diameter [mm (in.)] 6 (0.24), 10 (0.39), 6.4 (1/4), 9.5 (3/8)
Environmental
Enclosure rating per IEC 60529 Shaft: IP 65
Housing, connector version with
mating connector installed: IP67
Housing, cable version: IP67
Temperature -30…80 °C (-22...176 °F) operating
-40…100 °C (-4...212 °F) storage
Relative humidity 90% non-condensing
Shock 100G/11ms duration
Output Waveforms
Environmental (continued)
Vibration 30 G/10…2,000 Hz
EMC EN 61000-6-2 and EN 61000-6-3
(M12 connector)
Housing material EN AC-47100 die-cast aluminium
Housing finish Powder coat paint, color RAL 9005,
Pantone black C (jet black)
Flange material 6061-T6 aluminium
Shaft material SAE 303 stainless steel
Certifications RoHS compliant
CE marked for all applicable directives
UL listing valid only for encoders with
cable and M12 connections
A
B
Z
90°
360°
Clockwise rotation when facing encoder shaft
Signals and marker option - A leads B (CW rotation)
Measuring step
Complementary signals AN, BN, and ZN are supplied
only on units with line driver outputs.
A
B
Z
90°
360°
Measuring step
B leads A, 180°
marker gated with BN
Signals and marker option - B leads A (CW rotation)
Clockwise rotation when facing encoder shaft
A leads B, 180°
marker gated with A