Publication 1746-5.16
21
Inputs A, B, and Z
Limit Switch Input
Differential
(Switch 1 on)
Single Ended
(Switch 1 off)
Input Voltage
±
5V dc 0 to 5V dc
(1)
(1)
12 and 24 volts must be used with a pullup resistor.
On-State Voltage 2.8 to 4.5V dc 3.1 to 5.5V dc
Off-State Voltage -5.5 to 0.8V dc 0 to 0.8V dc
Max Off-State Leakage
Current
100
µ
A 600
µ
A
Input Current (mA)
2.5 mA at 2.8V dc
7.5 mA at 4.5V dc
2.5 mA at 3.1V dc
7.5 mA at 5.5V dc
Nominal Input Impedance 700
Ω
825
Ω
Min. Pulse Width 10
µ
s
Min. Phase Separation
(2)
(2)
Channel A to channel B
4.5
µ
s
Max. Input Frequency
Sequencer and Range
Rate
50k Hz
32.767k Hz
Isolation (from backplane) 1500 volts
5V dc 12V dc 24V dc
On-State Voltage 3.8 to 5.4V dc 9.4 to 16.5V dc 16.5 to 30V dc
Off-State Voltage 0 to 1.2V dc 0 to 2.4V dc 0 to 3.9V dc
Input Current
minimum
nominal
maximum
4.6 mA
6.8 mA
9.2 mA
Max. Off-State Leakage
Current
1 mA (all ranges)
Isolation (from backplane)
1500 volts
Allen-Bradley HMIs
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