Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 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 M
Ω: 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 k Ω
(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)