Spectrum Controls 1756-CTR8 - Appendix A Module Specifications; Specifications

Owner’s Guide 0300199-01 Rev. D
Appendix A
Module Specifications
This appendix lists the specifications for the 1756sc-CTR8 Counter Module.
Specification Description
Backplane Current Consumption 230 mA at 5 VDC 75 mA at 24 VDC
Backplane Power Consumption
3.00 W maximum (0.6 W at 5 VDC,
2.4 W at 24 VDC)
Maximum Power Dissipation
4.8 W (All inputs at maximum
voltage)
Number of Channels
8 unidirectional/4 bi-directional and
quadrature
Number of Gates
8 gate inputs
I/O Chassis Location Any I/O module slot
Conversion Method FPGA
Input Filtering
Three user-selectable filters (12 kHz,
25 kHz, debounce)
Calibration Module does not require calibration
Input Overvoltage Protection ±50 VDC
Input Overcurrent Protection
Less than 4 mA at 50 VDC
Isolation
2550 VDC continuous between inputs
and chassis ground, and between
inputs and backplane.
Specification Description
LED Indicators
1 red/green status indicators, 1 red
system status
Recommended Cable
Shielded twisted pair extension wire
Belden 8761 or equivalent shielded
Belden 9501
Maximum Wire Size
One 2.1 mm
2
(16 AWG) wire per
terminal