Rockwell-automation 1760-xxxx Pico GFX-70 Controllers User Manual Uživatelský manuál stáhnout pdf (Strana 385)

Publication 1760-UM002B-EN-P - March 2005

Specifications A-13

Table A.13 GFX I/O Modules Transistor Output Specifications

Specification 1760-IB12XOB4IF, 1760-IB12XOB4IOF

Number of transistor outputs 4

Contacts Semiconductors

Rated voltage U

e

24V dc

Voltage Range 20.4V dc to 28.8V dc

Residual Ripple ≤ 5%

Supply current On 0 state: 18 mA (typical), 32 mA (max)

On 1 state: 24 mA (typical), 44 mA (max)

Reverse polarity protection Yes

ATTENTION

If voltage is applied to the outputs when the polarity

of the power supply is reversed, this will result in a

short circuit.

Potential isolation to the inputs, supply voltage, PC interface, memory

module, Pico-Link network, expansion I/O

Yes

Rated current I

e

at state 1, maximum 0.5A

Lamp load 5W (Q1 to Q4 without R

V)

Residual current at state “0” per channel < 0.1 mA

Max. output voltage On 0 state with external load, 10 MΩ: 2.5V

On 1 state, I

e

= 0.5 A

U = U

e

- 1V

Short-circuit protection: Thermal (Q1 to Q4) Yes (evaluation with diagnostics inputs I16, I15)

Short-circuit tripping current for R

a

≤ 10 MΩ

(depending on number of active channels and their load)

0.7A ≤ I

e

≤ 2A

Maximum total short-circuit current 8A

Peak short-circuit current 16A

Thermal cutout Yes

Maximum switching frequency with constant resistive load R

L

= 100 kΩ

(depends on program and load)

40,000 switch operations/hour

Parallel connection of outputs with resistive load; inductive load with

external suppression circuit (See Connecting Transistor Outputs on page

2-30); combination within a group

Yes

Group 1: Q1 to Q4

Maximum number of outputs: 4

Total maximum current 2A

ATTENTION

Outputs must be actuated simultaneously and for the

same time duration.

Status display of the outputs LCD Status display (if provided)

1 2 ... 380 381 382 383 384 385 386 387 388 389 390 ... 399 400

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