Rockwell Automation 845F Size 25 Incremental Encoder Installation Instructions User Manual
Ab d c e
Installation Instructions
Size 25 Incremental Encoder, Bulletin 845F
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Specifications
Electrical
Code Format Incremental, 2 channels with zero index
Quadrature 90° ±22°
Channel A leads B CCW
Symmetry 50% ±10%
Zero Index Channel Gated 1/2 cycle
Power
Requirements
Determined by catalog number:
5V DC ±5% @ 150mA maximum
8-24V DC @ 150mA maximum
Frequency
Response
Data:
210 kHz
Zero Index:
210 kHz
Operating Speed
(Data)
(210 kHz x 60)/Pulses per revolution = RPM or
6000 RPM, whichever is lower
Resolution Up to 5000 PPR on code disk
Output Drive
Capability
PNP current source = 20mA
NPN current sink = 20mA
Differential line driver = ±20mA
NPN open collector = 20mA
Mechanical
Starting and
Running Torque
2.5Ncm typical (3.5inĆoz)
Moment of Inertia 27gcm
2
(3.9 x 10
-4
ozĆinĆsec
2
)
Slew Speed 6000 RPM
Angular Shaft
Misalignment
5° standard coupler, 10° high performance coupler
Parallel Shaft
Misalignment
0.010in standard coupler, 0.020in high performance
coupler
Coupling Axial
Compliance
±0.030in standard coupler, ±0.060in high performance
coupler
Coupling Bore Size 9.517mm (3/8in) or 6.4mm (1/4in) dia.
Environmental
Housing NEMA Type 4, IP66 (IEC 529)
Temperature 0°C to +60°C (+32°F to +140°F) Ċ operating
-25°C to +90°C (-13°F to +194°F) Ċ storage
Humidity 98%, noncondensing
Shock 50g (11ms duration)
Vibration 20g (5 to 2000Hz)
Approximate
Shipping Weight
0.91kg (2lbs)
Accessories
Description
Part Number
PreĆWired Cables
845-CA-*-*
Mating Connectors
845-7P, 845-10P
Differential Encoder Buffer Board
845-BB
ATTENTION: The shielded cables, output devices,
and power supplies must be properly grounded. All
National Electric Code and applicable local codes and
ordinances must be observed when wiring the system.
Selection
845F —
S J G Z 1 4
FW
Y 2 C
a
b c
d
e f
5
Connector/Cable
Options
Code
Description
C
With Mating Connector
Without Mating Connector
Blank
1m (3.28ft) Cable Length
1
5
9
5m (16.4ft) Cable Length
9m (29.52ft) Cable Length
Power Supply
Code
Description
2
8-24V DC Unregulated
5V DC ±5%
1
Coupling Version
Code
Description
E
Standard 3/8in Bore
Standard 1/4in Bore
B
G
HighĆPerformance 3/8in Bore
HighĆPerformance 1/4in Bore
F
Resolution
Code
Description (PPR)
CB
60
50
CA
64
CE
80
CF
a
b
d
c
e
Ê
DLD = Differential Line Driver
DB
120
100
CG
180
EB
200
CH
CC
254
250
CJ
256
CW
300
EG
CK
360
400
CL
500
CM
DW
512
600
EH
900
LG
1000
CN
Output Configuration
Ê
Code
Description
3
NPN Current Sink
PNP Current Source
2
NPN Open Collector
24V DC Max
DLD 5V DC RS-422
4
1024
FW
1200
EL
CD
1250
1600
FL
1800
CP
DN
2000
2048
CS
HL
2400
2500
CR
2540
CY
CT
3600
5000
DR
Connection Options
Code
Description
2
Radial Connector (Side)
Axial Connector (End)
1
R
Radial Cable (Side)
Axial Cable (End)
A
f
RF
1280
10
BG
5
AM
1
AG
DF
150
DG
720
DL
800
1472
CU
1500
EM
LJ
2750
3000
EN
DLD 8-24V DC
6