Product Description
Part Number : 1769-OF8C
Type: 1769 Compact Analog I/O Module
Brand: Allen Bradley
Condition: New & Original in Factory Packing
Factory Warranty: 12 Months
Specifications:
| Model | 1769-OF8C | |
| Outputs | 8 single-ended | |
| Output range | 0 20 mA 4 20 mA | |
Full scale range(1) | 0 21 mA 3.2 21 mA | |
| Resolution | 16 bits (unipolar) 0 20 mA: 15.91 bits, 0.323 ?A/bit 4 20 mA: 15.59 bits, 0.323 ?A/bit | |
Bus current draw | 5V DC, 145 mA 24V DC, 185 mA | |
| Heat dissipation, max | 2.69 W | |
Conversion rate (all channels), max | 5 ms | |
Step response to 6396(2) | < 2.9 ms | |
| Resistive load on current output | 0 500 (includes wire resistance) | |
Inductive load (current outputs), max | 0.1 mH | |
| Field calibration | None required | |
Accuracy(3) | ?0.35% full scale @ 25 ?C (77 ?F) | |
Accuracy drift with temperature | ?0.0058% per ?C | |
Output ripple(4) | ?0.05% @ 0 50 kHz | |
| Nonlinearity | ?0.05% | |
Repeatability(5) | ?0.05% | |
Module error | ?0.55% | |
| Offset error | ?0.55% | |
| Output impedance | >1 M | |
Open and short-circuit protection | Yes | |
| Short-circuit protection, max | 21 mA | |
Output overvoltage protection | Yes | |
| Output response at system powerup and power down | ?0.5V DC spike for < 5 ms | |
Rated working voltage(6) | 30V AC/30V DC | |
| Isolation voltage | 500V AC or 710V DC for 1 min (qualification test), output group to bus 30V AC/30V DC working voltage (IEC Class 2 reinforced insulation) | |
| Weight, approx | 270 g (0.60 lb) | |
| Dimensions (HxWxD), approx | 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 in.) Height with mounting tabs 138 mm (5.43 in.) | |
| Slot width | 1 | |
| Module location | DIN rail or panel mount | |
| Power supply | 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4 | |
Optional 24V DC Class 2 power supply voltage range(7) | 20.4 26.4V DC | |
Power supply distance rating | 8 modules | |
| Terminal screw torque | 0.68 N m (6 lb in) | |
| Retaining screw torque | 0.46 N m (4.1 lb in) | |
| Wire size | (22 14 AWG) solid (22 16 AWG) stranded | |
| Wire type | Cu-90 ?C (194 ?F) | |
| Replacement terminal block | 1769-RTBN18 (1 per kit) | |
Replacement door label | 1769-RL2 (2 per kit) | |
| Replacement door | 1769-RD (2 per kit) | |
| Vendor ID code | 1 | |
| Product type code | 10 | |
| Product code | 40 | |
| Input words | 11 | |
| Output words | 9 | |
| Configuration words | 64 | |
| Enclosure type rating | None (open style) | |
- The over- or under-range flag comes on when the normal operating range (over/under) is exceeded. The module continues to convert the analog input up to the maximum full scale range.
The flag automatically resets when within the normal operating range. - Step response is the time between when the D/A converter was instructed to go from minimum to full range until the device is at 63% of full range.
- Includes offset, gain, nonlinearity, and repeatability error terms.
- Output ripple is the amount that a fixed output varies with time, which assumes a constant load and temperature.
- Repeatability is the ability of the input module to register the same reading in successive measurements for the same input signal.
- Rated working voltage is the maximum continuous voltage that can be applied at the input terminal, including the input signal and the value that floats above ground potential.
For example, a 10V DC input signal and 20V DC potential above ground at the input terminal. - If the optional 24V DC Class 2 power supply is used, the 24V DC current draw from the bus is 0 mA.
- Availability: In Stock
- Estimated Lead Time: Usually Ships in 1 - 7 Working Days
- Shipping Weight: 2 Kg
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