Honeywell VRX180 Universal Analog Inputs, Analog Outputs, Digital Inputs AC Inputs DC Inputs

Introduction

	Table 1-1 Specifications (continued)
	Universal Analog Inputs
Number	4 per module, up to 12 modules per video recorder
Input Types	mV, V, mA, T/C, RTD, pyrometers
Signal source	Thermocouple with cold junction compensation
	Line resistance up to 1000 ohms, T/C, mV, mA, V
	RTD, 3-wire connections, 40 ohms balanced maximum
Input Impedance	10 megohms for T/C and mV inputs; >1 megohm for volt inputs
Input Isolation	400 Vdc point-to-point
	1350 Vac RMS A/D converter to logic
Stray rejection	Series mode >60 dB. Common mode at 120 Vac >130 dB.
Burnout	T/C, Pyrometry configurable to upscale, downscale or none.
	Linear types: none except following ranges:
	Volt: -500 to 500 mV; -1 to 1V; -2 to 2V; -5 to 5V; 0 to 10V; -10 to 10V; inherent to
	zero volt
	RTD: Inherent upscale
	mA: Inherent downscale
T/C Break Detection	Via current pulse
Scan rate	Fastest rate:
	250 ms up to 4 inputs, 500 ms up to 12 inputs, 750 ms up to 16 inputs,
	1s up to 24 inputs,1,5 s up to 28 inputs, 2 s up to 44 inputs, 3 s up to 48 inputs.
A/D Converter Resolution	Better than 1 part in 50,000 at 50 Hz.
	Better than 1 part in 41,667 at 60 Hz.
	Analog Outputs
Number	4 per module (non-isolated), up to 2 modules per video recorder (8 outputs)
Type	Current output configurable within 0 to 20 mA. Maximum load 400 ohms per output.
	Voltage output configurable 0 to 5 V.
Isolation from ground	350 Vac
Accuracy	Factory configured accuracy = 0.1% at reference conditions
	Field calibration accuracy = 0.05%
Temperature Effects	0.1% per 10°C in the rated limits
D/A Resolution	16 bits
	Digital Inputs
	AC Inputs	DC Inputs
Number	6 per module, up to 6 modules per	6 (sink/source) per module, up to 6 modules
	video recorder	per video recorder
Input Voltage Range	80 to 264 Vac	10.2 to 26.4 Vdc
Peak Voltage	264 Vac	26.4 Vdc
AC Frequency	47 to 63 Hz	N/A
Isolation from ground	2300 Vac/1 min.	1100 Vac/1 min.
Isolation between inputs	350 Vac	30 Vac
ON Voltage Level	75 Vac minimum	9.5 Vdc minimum
OFF Voltage Level	20 Vac maximum	3.5 Vdc maximum

4 Video recorder – User Manual