Rockwell-automation 1760-xxxx Pico GFX-70 Controllers User Manual Manual de usuario Pagina 383

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Publication 1760-UM002B-EN-P - March 2005
Specifications A-11
Number of high-speed inputs (I1, I2, I3, I4) 4 0
High-speed up and down counters Frequency: < 3 kHz
Pulse shape: square wave
Frequency counters Frequency: < 3 kHz
Pulse shape: square wave
Incremental counter encoder Frequency: < 3 kHz
Pulse shape: square wave
Counter inputs I1 and I2, I3 and I4: 2
Signal offset: 90°
(1) Four of the digital dc inputs can alternately be used as 0 to 10V dc analog inputs. These inputs can be used as either digital or analog, not both. For example, you could use
4 analog inputs plus 8 digital inputs.
Table A.10 GFX I/O Modules Input Specifications
Specification 1760-IB12XOW4IF, 1760-IB12XOW4IOF
1760-IB12XOB4IF, 1760-IB12XOB4IOF
1760-IA12XOW4I
Table A.11 GFX I/O Modules Relay Output Specifications
Specification 1760-IA12XOW4I, 1760-IB12XOW4IF
1760-IB12XOW4IOF, 1760-OW2
Number of relay outputs 4 (2 for the 1760-OW2)
Type of outputs Relays
In groups of 1
Connection of outputs in parallel to increase the output Not permissible
Protection for an output relay Miniature circuit-breaker B16: 16A
or fuse (slow-blow): 8A
Potential isolation to mains power supply, input, PC interface, memory module, Pico-Link
network, expansion I/O
Safe isolation: 300V ac
Basic insulation: 600V ac
Mechanical life span
10 x 10
6
switch operations
Contacts relays
Conventional thermal current, (UL) 8A, (10A)
Recommended for load at 12V ac/dc > 500 mA
Protected against short-circuit cos ϕ = 1, 16A characteristic B (B16) at 600A
Protected against short-circuit cos ϕ = 0.5 to 0.7, 16A characteristic B (B16) at 900A
Rated impulse withstand voltage U
imp
contact coil 6 kV
Rated insulation voltage U
i
Rated operational voltage U
e
250V ac
Safe isolation to EN 50178 between coil and contact 300V ac
Safe isolation to EN 50178 between two contacts 300V ac
Making capacity, IEC 60947
AC-15 250V ac, 3A (600 Ops/h) 300,000 switch operations
DC-13 L/R 150 ms 24V dc, 1A (500 Ops/h) 200,000 switch operations
Breaking capacity, IEC 60947
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