Rockwell Automation 1794-VHSC 1794 FLEX I/O Very High Speed Counter Module User Manual - Manual (Page 59)

Rockwell Automation Publication 1794-UM010D-EN-E - July 2013 49
Appendix
A
Specifications
Overview This appendix contains general and environmental specifications and
certifications for the FLEX I/O Very High Speed Counter Module
.
Input Specifications
Attribute Value
Number of input
channels 2
Number of inputs per
counter 2 groups of A/A, B/B, and Z/Z pairs with 5V DC or
15…24V DC terminations
Input voltage 5V DC or 15…24V DC (Determined by terminal base terminations)
Input current 5V DC terminations:
19.1 mA @ 5V DC
25.7 mA @ 6V DC
15…24V DC terminations:
6.1 mA @ 15V DC
10.2 mA @ 24V DC
Voltage, input, off-state 5V DC terminations: <1.25V DC
15…24V DC terminations: <1.8V DC
Current, input, off-state <0.25 mA
Voltage, input, on-state 5V DC terminations: >2.6V DC
15…24V DC terminations: >12.5V DC
Current, input, on-state >5 mA
Voltage, on-state, max 5V DC terminations: ±6V
15…24V DC terminations (Refer to Derating Curve)
Input frequency, max 1.0 MHz counter and encoder X1 (no filters)
500 kHz encoder X2 (no filters)
250 kHz endocer X4 (no filters)
Input filter selections Off, 10
μ
s, 100
μ
s, 1.0ms, 10.0ms per A/B/Z group
Output Specifications
Attribute Value
Number of outputs 2 isolated groups of 2:
(0.5A @ 5V DC, max; 1.0A @ 12…24V DC, max)
Output control Outputs can be tied to 8 compare windows
Voltage range, output
supply 5…7V DC; 10…31V DC
Leakage current,
off-state Less than 300
μ
A
Voltage drop, on-state 5V DC terminations: 0.9V DC @ 0.5 A
12…24V DC terminations: 0.9V DC @ 1.0 A