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I/O CAPABILITIES
This basic unit provides 15 dc sink input circuits and 9 dc sink output
circuits. the 15 input circuits are each designed to receive a single
(ON/OFF) signal from user supplied devices such as limit switches,
pushbuttons, selector switches, and relay contacts. Circuits 15 and 16
can be used for high speed count input and reset or used as normal dc
sink input points. The 9 dc sink output circuits are each capable of
controlling user supplied discrete (ON/OFF) loads. Typical loads include
relay coils, motor starters, solenoid valves, and indicator lights. The
ON/OFF state of each input and output circuit is indicated by an LED.
Following are specifications for each of the input and output circuits.
DC INPUT CIRCUITS (0-14)
Input Points
Maximum Voltage on Input Terminal (no
load)
Open Circuit Voltage of Input (nominal)
Input Current
Input Impedance
ON Level
OFF Level
OFF to ON Response
15
26 V dc
24 V dc
12 mA
1.8 K
ohms
0-7 V dc
18-26 V dc
5-10 ms
ON to OFF Response
Circuit Indicator
Maximum OFF Leakage
Minimum ON Current
5-10 ms
Logic Side
3 mA
6 mA
DC (HIGH SPEED COUNTER) INPUT
CIRCUITS (15, 16)
Input Points
Input Device
Maximum Voltage on Input
Terminal (no load)
Open Circuit Voltage of Input
(nominal)
Input Current
Input Impedance
ON Level
OFF Level
OFF to ON Response
ON to OFF Response
Circuit Indicator
Maximum OFF Leakage
Minimum ON Current
2
Input 15 - open
collector
26 V dc
24 V dc
12 mA
1.8 K ohms
0-7 V dc
18-26 V dc
0.1 ms
0.1 ms
Logic Side
3 mA
6 mA
24 V dc SINK OUTPUT CIRCUITS
Output Points
Operating Voltage
Peak Voltage
Maximum Current
9
5-24 V dc
45 V dc
1 amp, Outputs 17-23
0.5 amp, Outputs 24-27
Maximum Leakage Current 0.1 mA
0.9 V dc @ 1.0 amp
On Voltage Drop, Maximum
1.5 V dc @ 0.5 amp
4 amps for 10 ms (17-23)
Maximum Inrush
OFF to ON Response
ON to OFF Response
Circuit Indicator
Fuses (Internal, Fuse clips)
1 amp for 100 ms (24-27)
0.1 ms
0.1 ms
Logic Side
2A (C1)
5A (C2, C3)