Delta AH500 - 2.2 Specifications and Functions; 2.2.1 Specifications

AH500 Module Manual
2-2
2.1 Overview
The specifications for analog-to-digital modules, the operation, and the programming are described
in this chapter. AH04AD-5A, AH08AD-5A, AH08AD-5B, and AH08AD-5C are analog-to-digital
modules.
2.1.1 Characteristics
(1) A module is selected according to practical application.
AH04AD-5A: There are four channels. Inputs received by a channel can be either voltages or
currents.
AH08AD-5A: There are eight channels. Inputs received by a channel can be either voltages or
currents.
AH08AD-5B: There are eight channels. Inputs received by these channels are voltages.
AH08AD-5C: There are eight channels. Inputs received by these channels are currents.
(2) High-speed conversion
An analog signal is converted into a digital signal at a speed of 150 μs a channel.
(3) High accuracy
Conversion accuracy: The error is ±0.1% of an input voltage, and ±0.1% of an input current.
(The ambient temperature is 25°C. The number of input voltages/currents
which are averaged is 100.)
(4) A scale range can be set by means of software.
Users can set a scale range in ISPSoft. A scale range is a range of digital values to which a
range of analog values corresponds.
(5) A module can be set by means of utility software.
HWCONFIG is built-in utility software in ISPSoft. Users can set modes and parameters in
HWCONFIG to complete hardware configuration without spending time writing a program to set
registers corresponding to functions.
2.2 Specifications and Functions
2.2.1 Specifications
Electrical specifications
Module name AH04AD-5A AH08AD-5A AH08AD-5B AH08AD-5C
Number of inputs
4 8 8 8
Analog-to-digital
conversion
Voltage input/
Current input
Voltage input/
Current input
Voltage input Current input
Supply voltage
24 V DC (20.4 V DC~28.8 V DC) (-15%~+20%)
Connector type
Removable terminal block
Conversion time
150 μs/channel
Isolation
An analog circuit is isolated from a digital circuit by a digital integrated
circuit/an optocoupler, but the analog channels are not isolated from one
another.
Isolation between a digital circuit and the ground: 500 V DC
Isolation between an analog circuit and the ground: 500 V DC
Isolation between an analog circuit and a digital circuit: 500 V DC
Isolation between the 24 V DC and the ground: 500 V DC