Description / توضیحات
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)
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)
(1) 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.
(2) 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.
(3) Includes offset, gain, nonlinearity, and repeatability error terms.
(4) Output ripple is the amount that a fixed output varies with time, which assumes a constant load and temperature.
(5) Repeatability is the ability of the input module to register the same reading in successive measurements for the same input signal.
(6) 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.
(7) If the optional 24V DC Class 2 power supply is used, the 24V DC current draw from the bus is 0 mA.
