Rockwell-automation 1769-OF8V CompactLogix Analog Output Module Uživatelský manuál stáhnout pdf (Strana 34)

34 CompactLogix Analog Output Module

Rockwell Automation Publication 1769-IN089A-EN-P - March 2011

Output Specifications 1769-OF8C and 1769-OF8V

Attribute 1769-OF8C and 1769-OF8V

Analog normal operating ranges

(1)

(1769-OF8C): 0…20 mA, 4…20 mA

(1769-OF8V): ± 10V dc, 0…10V DC, 0…5V DC, 1…5V DC

Full Scale analog ranges

(1)

(1769-OF8C): 0…21 mA, 3.2 to 21 mA

(1769-OF8V): ± 10.5V dc, -0.5…10.5V DC, -0.5…5.25V DC,

0.5…5.25V DC

Number of outputs 8 single-ended

Bus current draw, max (1769-OF8C) 145 mA at 5V DC

185 mA at 24V DC

(2)

Bus current draw, max (1769-OF8V) 145 mA at 5V DC

135 mA at 24V DC

Heat dissipation (1769-OF8C): 2.69 total W (all points - 21 mA into 250 Ω - worst

case calculated)

(1769-OF8V): 2.16 total W (all points - 10.5V into 1 kΩ - worst

case calculated)

Digital resolution across full range (1769-OF8C): 16 bits (unipolar)

4…20 mA: 15.59 bits, 0.323 µA/bit

0…20 mA: 15.91 bits, 0.323 µA/bit

(1769-OF8V): 16 bits plus sign (bipolar)

±10V dc: 15.89 bits, 330 ?V/bit

0 to +5V dc: 13.89 bits, 330 µV/bit

0 to +10V dc: 14.89 bits, 330 µV/bit

+1 to +5V dc: 13.57 bits, 330 µV/bi

Conversion rate (all channels) max. 5 ms

Step response to 63%

(3)

<2.9 ms

Resistive load on current output

(1769-OF8C)

0…500 Ω (includes wire resistance)

Max inductive load (1769-OF8C) 0.1 mH

Load range output (1769-OF8V) > 1 kΩ at 10V DC

Max capacitive load (1769-OF8V) 1 µF

Field calibration None required

Overall accuracy

(4)

(1769-OF8C): ±0.35% full scale at 25 °C (77 °F)

(1769-OF8V): ±0.5% full scale at 25 °C

Accuracy drift with temperature (1769-OF8C): ±0.0058% FS per °C

(1769-OF8V): ±0.0086% FS per °C

Output ripple

(5)

range 0…50 kHz

(referred to output range)

±0.05%

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 40

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