Product Description
🔹 General Information
|
Manufacturer |
Allen-Bradley |
|---|---|
|
Model/Part Number |
1734-SSI |
|
Description |
POINT I/O Synchronous Serial Interface Absolute Encoder Module |
🔹 SSI Specifications
|
Attribute |
Value |
|---|---|
|
Number of SSI Channels |
1 |
|
Encoder Type |
Any absolute encoder supporting standard SSI protocol (linear, rotary, optical distance measuring) |
|
Data Format |
Most-Significant Bit Aligned |
|
Physical Interface for Clock & Data |
RS-422 |
|
SSI Data Rate |
125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz (Software selectable) |
|
SSI Bits per Word |
2…31 (Software selectable) |
|
SSI Word Delay Time (Tp) |
16…65535 µs (Software selectable) |
|
SSI Word Length |
4 bytes (32 bits) |
|
SSI Features |
Gray/Binary Code, Gray-to-Binary Conversion, Increasing/Decreasing Count Indication, 2 SSI Word Comparator Values, Word Latching with I1 Input |
|
SSI Position Forming Time |
≥0.5 ms |
|
SSI Cable Type |
UL CM/AWM 2464/CSA Type CMG FT4 (Shielded Twisted Pairs) |
|
SSI Cable Length (Max) |
125 kHz: 320 m (1050 ft) |
|
250 kHz: 160 m (525 ft) |
|
|
500 kHz: 60 m (195 ft) |
|
|
1 MHz: 20 m (65 ft) |
|
|
2 MHz: 8 m (25 ft) |
|
|
SSI Sensor Power |
450 mA, 10…28.8V DC |
|
SSI Clock Drive Current (Max) |
125 mA |
🔹 Input I1 Specifications
|
Attribute |
Minimum |
Nominal |
Maximum |
|---|---|---|---|
|
ON-State Voltage |
0V DC |
FPV - 10V |
- |
|
ON-State Current |
2 mA |
4 mA (@ 24V DC FPV) |
5 mA |
|
OFF-State Voltage |
FPV - 5V |
- |
FPV |
|
OFF-State Current |
1.2 mA |
- |
- |
|
Input Impedance |
- |
3.6 kΩ |
4.7 kΩ |
|
Input Filter Time |
- |
0.5 ms |
- |
🔹 General Specifications
|
Attribute |
Value |
|---|---|
|
Terminal Base Screw Torque (Max) |
0.6 N•m (7 lb•in) |
|
LED Indicators |
All powered from the logic side |
|
Module Location |
1734-TB, 1734-TBS wiring base assembly |
|
POINTBus™ Current |
110 mA @ 5V DC |
|
Power Dissipation |
0.94 W |
|
Isolation Voltage |
50V (Continuous), Basic Insulation Type, Tested @ 1250V AC for 60 s (Field to System) |
|
Field Power Bus Supply Voltage |
Min: 10V DC @ 450 mA |
|
Nom: 24V DC @ 450 mA |
|
|
Max: 28.8V DC @ 450 mA |
|
|
Dimensions (H × W × D) |
56 × 12 × 75.5 mm (2.21 × 0.47 × 2.97 in.) |
|
Conductor Category |
1 – on signal ports |
|
Wire Size |
0.34…2.1 mm² (22…14 AWG) solid/stranded copper wire rated @ 75°C (167°F), 1.2 mm (3/64 in.) insulation max |
|
Wire Type |
Copper, Shielded on encoder port |
|
Weight |
0.032 kg (0.07 lb) |
|
Keyswitch Position |
2 |
|
Enclosure Type Rating |
None (open-style) |
|
Temperature Code |
North America: T4A |
|
UKEX/ATEX: T4 |
|
|
IECEx: T4 |