24 Volt AC/DC Positive/Negative Logic Input, 16 Point IC693MDL241 The 24 volt AC/DC Positive/Negative Input module for the Series 90-30 Programmable Logic Controller provides 16 input points in one group with a common power input terminal. This input module is designed to have either positive or negative logic characteristics in the DC input mode. This input module is designed to function with AC or DC user inputs. Input characteristics are compatible with a wide range of user-supplied input devices, such as pushbuttons, limit switches, and electronic proximity switches. Current into an input point results in a logic 1 in the input status table (%I). Power to operate the field devices can be supplied by the user, or the Isolated +24 VDC output on the power supply (bottom two power supply terminals) can be used to power a limited number of DC inputs. LED indicators which provide the ON/OFF status of each point are located at the top of the module. This LED block has two horizontal rows with eight green LEDs in each row; the top row labeled A1 through 8 (points 1 through 8) and the bottom row labeled B1 through 8 (points 9 through 16). An insert goes between the inside and outside surface of the hinged door. The surface towards the inside of the module (when the hinged door is closed) has circuit wiring information, and circuit identification information can be recorded on the outside surface. The outside left edge of the insert is color-coded blue to indicate a low-voltage module. This module can be installed in any I/O slot of a 5 or 10-slot baseplate in a Series 90-30 PLC system. Table 6-4. Specifications for IC693MDL241 Rated Voltage 24 volts AC or 24 volts DC Input Voltage Range 0 to +30 volts DC or 0 to +30 volts AC, 50/60 Hz Inputs per Module 16 (one group with a single common) Isolation 1500 volts between field side and logic side Input Current 7 mA (typical) at rated voltage Input Characteristics On-state Voltage 11.5 to 30 volts AC or DC Off-state Voltage 0 to +4 volts AC or DC On-state Current 3.2 mA minimum Off-state Current 1 mA maximum On response Time 12 ms typical Off response Time 28 ms typical Power Consumption: 5V 80 mA (all inputs on) from 5 volt bus on backplane Power Consumption: 24V 125 mA from the Isolated 24 volt backplane bus or from user supplied power Number of inputs on is dependent upon ambient temperature as shown in figure 6 9. Refer to Appendix B for product standards and general specifications. 6 6-8 Series 90-30 PLC I/O Module Specifications July 2000 GFK-0898F IC693MDL241 Input Module Field Wiring Information The following figure provides wiring information for connecting user supplied input devices and power source to the 24 volt AC/DC positive/negative logic input module.