Rockwell Automation 1769-OV32T Compact Module - Manual (Page 11)

Compact 32-point Solid-state 24V dc Sink Output Module 11
Publication 1769-IN073B-EN-P - September 2005
Option 2 - Using Allen-Bradley 1492 Wiring Systems
Allen-Bradley 1492 wiring systems are available for connecting 32 point I/O modules to
external I/O. These wiring systems include a pre-wired cable available in four lengths: 0.5m
(1.6 feet), 1.0m (3.3 feet), 2.5m (8.2 feet), 5.0m (16.4 feet). An Interface Module for
connecting external devices is also available. Cables are equipped with keyed connectors at
both ends for proper connections. Interface modules are DIN rail mountable and are
available with or without field side status indicating LEDs. Stick-on labels are provided with
the Interface modules to identify I/O wiring termination points.
(1) To maintain group isolation provided by 32-point I/O modules, use a 1492 terminal block that provides group isolation.
Consult 1492 documentation or your Allen-Bradley Sales Office for additional information.
(2) Maximum user cable length is dependent on how much voltage drop (current x (ohms/ft.) x (feet)) the user’s system can
tolerate. The user’s system should take into account the minimum turn-on voltage required by external loads connected to
the 32-point output module, the minimum turn-on voltage required by the 32-point input module, and all of the voltage
drops associated with wiring to and from the load, sensors, terminal blocks, power sources and the module itself. See the
table on page 11 for voltage drop values for the 1492 cables shown above.
(3) When using 1492-CABLExx, I/O module door will not be able to be closed. Leave open or detach removable door.
Catalog No. Voltage Drop at 30 °C Voltage Drop at 60 °C
Series C Cables V dc and dc com
Wires (1)
(1) Voltage drop at maximum rated current of 2 amps per conductor.
Output Channel
Wires (2)
(2) Voltage drop at maximum rated current of 0.5 amps per output channel.
V dc and dc com
Wires Output Channel
Wires
1492-CABLE005H 127 mv 34 mv 144 mv 38 mv
1492-CABLE010H 173 mv 45 mv 196 mv 51 mv
1492-CABLE025H 334 mv 83 mv 388 mv 95 mv
1492-CABLE050H 574 mv 147 mv 686 mv 169 mv
31562-M
32-Point I/O Module
Male
MIL-C-83503
Header
1492-CABLExx (2)(3)
Connects 32-point module
to DIN rail mountable
terminal block
0.32 in. (8 mm) REF.
1492-IFM40xx DIN rail mountable terminal block (1)
24 to 12 AWG
(0.2 to 4mm 2 )