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SPEED (RPM)

0

5

10

15

20

25

30

35

40

45

0

1000

2000

3000

4000

5000

6000

7000

Chart 1. Speed vs Temperature

(Temperature on this chart to be added to ambient temperature. Do not exceede maximum temperature on datasheet.)

Solid Shaft

Electrical

Cable or M12 Connection Shaft Options

Through Hollow Shaft

Blind Hollow Shaft

Shaft with Integrated coupling

Absolute

Incremental

Output Format

SSI compatible (RS422)

Two channels in quadrature + index and complements

Resolution

Up to 16 BITS

Up to 10,000 CPT

Encoder Accuracy

±0.1°

Supply Voltage Vcl

5-30 Vdc

Cable or M12: 5-30V (28/V) and 4.75-30V (28/5)

Terminal Box: 11-30V (28/VR),5-30V (28/V) and 4.75-

30V (28/5)

Supply Current (No Loads)

75mA Typ

Cable or M12: 75mA

Terminal Box: 100mA (28/VR), 75mA (28/V and 28/5)

Current Per Channel Pair

40mA max

Cable or M12: 40mA

Terminal Box: 60mA (28/VR), 40mA (28/V and 28/5)

Voltage / Output

28/SI:

SSI RS485 w/o parity

28/SR:

SSI RS485 reinforced w/o parity

Terminal Box version only

28/V: Line driver 5-30 V In/Out; PushPull

28/5: Line driver with 5 V (TTL) regulated output

28/VR: Push Pull 11-30V reinforced. Terminal Box

version only

Short Circuit Proof

28/SI: Yes (except to V+)

28/SR: Yes

Cable or M12: Yes (28/V) and Yes (except to Vcl) (28/5)

Terminal Box: Yes (28/VR), (28/V) and (28/5) except

to Vcl

Reverse Polarity Tolerant

Yes

Wiring Fault Tolerant & Overvoltage Prot.

28/SI: No

28/SR: Yes

Cable or M12: No

Terminal Box: Yes Up to 60Vdc (28/VR) and No (28/V

and 28/5)

Frequency Response

Cable or M12: Up to 1MHz

Terminal Box: Up to 300kHz (28/VR), Up to 1MHz (28/V and 28/5)

Output Terminations

Cable, M12 or Terminal Box

EMC

EN 61000-6-2 : 2005, see user manual for details

EN 61000-6-4 : 2017 + A1 : 2011, see user manual for details

Isolation

1000V