Spectrum Controls 1756-CTR8 - Specifications

A-2 Appendix A: Module Specifications
Owner’s Guide 0300199-01 Rev. D
Specification
Description
Operating Temperature 0 °C to 60 °C (32 °F to 140 °F)
Storage Temperature -40 °C to 85 °C (-40 °F to 185 °F)
Relative Humidity 5% to 95% (without condensation)
Certification CE, UL, and CUL approved
Voltage Range AC 50 mVpp AC 200 mVpp 5 VDC 12/24 VDC
VIL -50 mV -200 mV 1 V 6 VDC
VIH +50 mV +200 mV 3.5 V 10.5 VDC
Vmax CE ±50 VAC rms ±50 VAC rms ±50 VDC ±50 VDC
Input Range Max Frequency Min Duty Cycle
Max Duty
Cycle
Min Pulse
Width
AC (50 mV) 65 kHz NA NA NA
AC (200 mV) 65 kHz NA NA NA
5 VDC
65 kHz
30
60
4.6 usec
12 VDC 65 kHz 35 70 5.4 usec
24 VDC 65 kHz 25 55 3.8 usec
Current Range 4 mA maximum at 50 VDC
Input impedance
Resistance
Voltage-dependent greater than 1 Mohm at 5 V,
24 Kohm typical at 24 V
Capacitance 600 pF typical
Counter Speed 0 to 65 kHz Input Frequency 0 to 65 kHz
Counter Gate Input:
VIL
VIH
Vmax
1.0 V minimum
3.5 V maximum
30 V
Min/Max Duty Cycle
Channel Update Time:
With scaling 13 ms for all 8 channels