GE IC693MDL940 Relay Output, N.O., 2 Amp - 16 Point
24 Volt DC Input, Relay Output, 8 Inputs/8 Outputs
IC693MDR390
The 24 volt DC Input/Relay Output module for the Series 90-30 Programmable Logic
Controller provides 8 input points with one common power input terminal, and 8
normally-open relay circuits in the same module. The input circuits are designed to have either
positive or negative characteristics in that they sink or source current to/from the input devices
to/from the user common and are arranged as one group of 8 inputs. The relay output circuits
are arranged in two groups of four circuits each. Each group has a common power output
terminal.
Input characteristics are compatible with a wide range of user-supplied devices, such as:
pushbuttons, limit switches, and electronic proximity switches. Current through an input results
in a logic 1 in the input status table (%I). Power to operate the field devices must be supplied
by the user.
The normally-open relay circuits are used for controlling output loads provided by the user.
The output switching capacity of each output is 2 amps. The relay outputs can control a wide
range of user-supplied load devices, such as: motor starters, solenoids, and indicators. Power
for the internal relay circuits is provided by the +24 volt DC bus on the backplane. The user
must supply the AC or DC power to operate field devices. There are no fuses on this module.
LED indicators which provide the ON/OFF status of each point are located at the top of the
module. The LEDs are arranged in two horizontal rows with eight green LEDs in each row.
The top row is labeled A1 through 8 (input points 1 through 8) and the bottom row is is labeled
B1 through B8 (relay output points 1 through 8). 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 top half of the outside left edge of the insert is
color-coded blue to indicate low-voltage circuits and the bottom half of the outside left edge is
color-coded red to indicate high-voltage circuits.
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 8-3. Specifications for IC693MDR390
Inputs
Rated Voltage 24 volts DC
Input Voltage range –30 to +32 volts DC
Inputs per Module 8 (one group of eight inputs)
Isolation 1500 volts RMS between field and logic side
500 volts RMS between inputs
Input Current 7.5 mA (typical) at rated voltage
Input Characteristics
On-State Voltage 15 to 32 volts DC
Off-State Voltage 0 to +5 volts DC
On-State Current 4 mA (minimum)
Off-State Current 1.5 mA (maximum)
On Response Time 7 ms typical
Off Response Time 7 ms typical
Outputs
Rated Voltage 24 VDC, 120/240 VAC
Operating Voltage 5 to 30 volts DC
5 to 250 volts AC, 50/60 Hz
Outputs per Module 8 (two groups of four outputs each)
Isolation 1500 volts RMS between field and logic side
500 volts RMS between groups
Maximum Load 2 amps maximum per output
4 amps maximum per common
Minimum Load 10 mA
Maximum Inrush 5 amps
On Response Time 15 ms maximum
Off Response Time 15 ms maximum
Internal Power Consumption 80 mA (all I/O on) from +5V backplane bus
70 mA (all outputs on) from relay +24V backplane bus
Maximum load current is dependent on operating voltage as shown in the following table.
Refer to Appendix B for product standards and general specifications.
Table 8-4. Load Current Limitations for IC693MDR390
Operating Maximum Current for Load Type Typical Operations
Voltage Resistive Lamp or Solenoid (number of Operations)
240 VAC, 120 VAC, 24 VDC 2 amps .6 amps 200,000
240 VAC, 120 VAC, 24 VDC 1 amp .3 amps 400,000
240 VAC, 120 VAC, 24 VDC .5 amps .1 amp 800,000
For inductive loadsRelay contact life, when switching inductive loads, will approach resistive load contact life if
suppression circuits are used. The following figures are examples of typical suppression
circuits for AC and DC loads. The 1A, 100V diode shown in the DC load typical suppression
circuit is an industry standard 1N4934. The resistor and capacitor shown for AC load
suppression are standard components, available from most electronics distributors.