KEYENCE KV-AD40V A/D Conversion Unit, 4 Analog Input Channels

Type

A/D conversion unit

Analogue I/O point

4 points (differential input)

Analogue I/O range (resolution)

Voltage

-10 to +10 V (0.5 mV 1/40,000)
-5 to +5 V (0.25 mV 1/40,000)
0 to 10 V (0.5 mV 1/20,000)
0 to 5 V (0.25 mV 1/20,000)
1 to 5 V (0.25 mV 1/16,000)

Input current

0 to 20 mA (1 µA 1/20,000)
4 to 20 mA (1 µA 1/16,000)

Input impedance

Voltage: 5 MΩ, Current: 250 Ω

Conversion speed

25 µs/ch^*1

Conversion precision

25 °C ±5 °C

Voltage: ±0.1 % of F.S.^*2, Current: ±0.1 % of F.S.

0 to 50 °C

Voltage: ±0.2 % of F.S.^*3, Current: ±0.2 % of F.S.

Insulation mode

Between unit and CPU: Photocoupler insulation, non-insulation between channels

Absolute max. input

Voltage: ±15 V, Current: 30 mA

Internal current consumption

140 mA or less

Weight

Approx. 150 g

^*1 When temperature drift correction is used, temperature drift correction time of 25 µs is added regardless of the number of channels used.
^*2 This is a value when temperature drift correction is used. When temperature drift correction is not used, the conversion precision is as follows: Voltage: ±0.5 % of F.S., Current: ±0.6 % of F.S.
^*3 This is a value when temperature drift correction is used. When temperature drift correction is not used, the conversion precision is as follows: Voltage: ±0.7 % of F.S., Current: ±0.7 % of F.S.