Technical data

Publication 1794-2.1 - January 2000
FLEX I/O and FLEX Integra Product Data
24V dc 2 Input Frequency Module Cat. No. 1794-IJ2 135
24V dc 2 Input Frequency Module Cat. No. 1794-IJ2
Recommended
Terminal Base
Compatible
Terminal Base(s)
1794-IJ2
FREQUENCY INPUT 2 CHANNEL
F00F1
F
1F
1
10
FREQ GATE FREQ GATE
OUT OUT
OK
40870
TB3G TB3GS
40894
Simplified Schematic for Frequency Input Channel 0
Isolated 24V Power
(F and G, 15mA each)
24V
IEC 1+ or
24V dc
Switch Input
2.5KΩ
5.11KΩ
2.15KΩ 2.15KΩ
215Ω
100pF
Frequency only, not on gate
8.25KΩ 100KΩ
100pF
8.25KΩ 46.4KΩ
100pF
6V Vortex
Input
3V Vortex
Input
Internal 500mV
Ref. Voltage
50mV Select
Jumper
825Ω
Return
Invert Frequency
(Gate) Input
-
+
-
+
Ex
Nor
10KΩ
100pF
100pF
Frequency Input
(Gate) Input
Frequency Lead Break
(Gate Lead Break)
10KΩ
Lead Breakage
Reference Voltage
47pF
A-2 or
A-7
A-1
A-5
A-6
A-0
A-4
A-3
500mV/
50mV
Simplified Schematic for Outputs Channel 0
40895
10KΩ
3.83KΩ
3.83KΩ
D5
6.8V
Q1
D6
Output
TEMPFET
Supply
Output Channel
Alarm
Output 0
Supply Return
RT1
R
load
1A max
10-31.2V
dc
Customer supplied power, ranging from +10V to +31.2V dc, is connected internally to the power output transistor. When an output is turned
on, current flows into the source out of the drain, through the load connected to the ground of the customer supply (customer return). Diode D6
protects the power output transistors from damage due to inductive loads. Output Q1 is a thermally protected FET and will turn off @ 3A
(approximately). After an output goes into thermal shutdown, you must fix the cause of the shutdown and toggle the outputs ON and OFF to
reenergize the output. RT1 protects D6 and Q1 if power supply polarity is reversed.
B-18
B-17
+
-
C-39
C-37