Rockwell Automation 844C Incremental Encoder User Manual
Rockwell Automation Equipment
Installation Instructions
Bulletin 844C Hollow ThroughĆShaft Incremental Encoders
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Selection
844C — Z3
05D
02500
a
b
c
a
Shaft Options
Code
Description
06
6mm
08
8mm
10
10mm
12
12mm
Z3
3/8I
Z4
1/2I
b
Power Supply & Output
Ê
Code
Description
05D
4 to 6V DC in,
DLD RS422 Output
10D
10 to 30V DC in,
5V DC DLD RS422 Output
10P
10 to 30V DC in,
10-30V DC PĆP Output
Ê
DLD = Differential Line Driver
P–P = Push-Pull Single Ended Driver
c
Resolution
Code
Description
00100
100
00250
250
00360
360
00500
500
01000
1000
01024
1024
01250
1250
02000
2000
02048
2048
02500
2500
03600
3600
04096
4096
05000
5000
07200
7200 Л
08192
8192 Л
10000
10000 Л
Л
Available with 4–6V power supply and
output only.
Specifications
Electrical
Code Format 2 channels with zero index
Quadrature 90_
±
22_ channel A leads B CW
Symmetry 40% to 60%
Operating Voltage 4ć6V DC, 10ć30V DC w/RS422 Output
10ć30V DC w/PushĆPull Output
Power Requirements 100mA @ 5V DC (no load)
120mA @24V DC (no load)
Max Output Frequency 300kHz (RS422)
200kHz (PushĆPull)
Resolution Up to 10,000 pulses per revolution
Integral Cable 1.5m (5ft)
Output Drivers RS422 Line driverĊ3487
10-30V DC Line driverĊ7272
Mechanical
Angular Acceleration 50,000 radians/sec
2
maximum
Moment of Inertia 45gcm
2
(0.25ozĆin
2
) maximum
Maximum Operating Speed 6000rpm at max shaft loading
Maximum Torque 0.2Ncm (0.28oz in) Operating
0.4Ncm (0.57oz in) Starting
Permissible Shaft Movement Radial 0.05mm (0.002in)
Axial
±
0.2mm
〈±
0.008in)
Maximum Shaft Loading Axial 0.45kg (1lb)
Radial 1.36kg (3lb)
Environmental
Housing Aluminum
Temperature -20_C to 70_C working
-20_C to 85_C operating
-20_C to 85_C storage
Humidity 90% noncondensing
Protection IP65 (IEC529)
Shock 30Gs/11msec
Vibration 20Gs/10-150Hz
Approximate Weight 0.3kg (11oz)