RMB28 RLS, RMB28 Datasheet - Page 7

• Manufacturer Part Number: RMB28
• Description: Angular Magnetic Encoder Module
• Manufacturer: RLS

RMB28SI – Absolute binary synchro-serial (SSI) + Incremental, RS422A, 5 V
Complex feedback device for absolute position at start up as well as during operation + incremental outputs.
Both the incremental and the SSI output always have the same fixed resolution.
* Worst case within operational parameters including magnet position and temperature.
Connections
RMB28SI
RMB28V – Linear voltage output
Alternative for potentiometers
Connections
RMB28V
Power supply
Power consumption
SSI output code
Data outputs
Data inputs
Incremental outputs
Operating temperature
320, 400, 500, 512
800, 1,000, 1,024
1,600, 2,000, 2,048
4,096
8,192
Power supply
Power consumption
Output voltage
Output loading
Nonlinearity
Operating temperature
Maximum speed
Resolution options
(positions/counts
Clock-
GND
Clock
Data-
Data
V
dd
per rev)
speed (rpm)
Maximum
30,000
20,000
10,000
5,000
2,500
V
35 mA
Natural binary
Serial data (RS422A)
Clock (RS422A)
A, B, Z, A-, B-, Z- (RS422A)
-25 °C to +85 °C
(-40 °C to +125 °C option 18)
V
20 mA (not loaded)
0 V to V
Max. 10 mA
1 %
-40 °C to +125 °C
30,000 rpm
dd
dd
= 5 V ± 5%
= 5 V ± 5%
dd
GND
V
V
Accuracy*
out
dd
±0.7°
±0.5°
±0.5°
±0.5°
±0.5°
Hysteresis
Z-
A-
B-
Z
A
B
0.18°
0.18°
0.18°
0.18°
0.18°
Timing diagram - SSI
Clock
Data
Position increases for clockwise rotation of magnetic actuator.
Timing diagram - Incremental
Complementary signals not shown
A
B
Z
B leads A for clockwise rotation of magnetic actuator.
Recommended signal termination
For incremental signals + SSI data output lines only
Electrical output
Output type and electrical variant
CCW
reference impulse
φ
CW
FS
Clock ≤ 4 MHz
Encoder
360°
VE
VA
counts per rev
360° x 4
180°
VB
VF
Cable Z
A
90°
VC
VG
= 1 cycle
0
= 120R
12.5 μs ≤ t
45°
VD
VH
edge separation
m
≤ 20.5 μs
Customer electronics
10 nF
120R
associate company
7
®