Hardware reference guide

Intrinsically Safe Modules
462
35013379 02 October 2007
140DII33000 Intrinsically Safe Discrete Input Module
Overview The Quantum 140DII33000 Intrinsically Safe Discrete Input module provides safe
power to dry contact closures e.g., push buttons, selector switches, float switches,
flow switches, limit switches, etc., in a hazardous area, and receives the proportional
current to indicate an on/off state. The received current is converted into digital
signals that is transferred to the PLC.
Specifications The following table provides specifications for the DII33000 Intrinsically Safe
Discrete Input module.
Specifications
Number of Input Points 8
LEDs Active (Green)
1 ... 8 (Green) – Indicates point status
Operating Voltages and Currents
No load voltage (between
input + and input -)
8 Vdc
Short circuit current 8 mA
Switching point 1.2 mA ... 2.1 mA
Switching hysteresis 0.2 mA
Switching Frequency 100 Hz maximum
Response
OFF-ON 1 ms
ON-OFF 1 ms
Isolation
Channel to Channel None
Channel to Bus 1780 Vac, 47-63 Hz or 2500 Vdc for 1 min.
Internal Resistance 2.5 KΩ
Input Protection Resistor limited
Fault Detection None
Bus Current Required 400 mA
Power Dissipation 2 W
External Power Not required
Hot Swap Not allowed per intrinsic safety standards
Fusing Internal - not user accessible
Programming Software Modsoft Ver. 2.61 or higher
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com