Overview; Features - Mitsubishi Electric MELSEC Q Series User Manual

1 OVERVIEW

1 OVERVIEW
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1.1 Features

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This User's Manual describes the specifications, handling and programming methods
for the Q62DA-FG type channel isolated digital-analog converter module (hereinafter
referred to as the Q62DA-FG) which are used in conjunction with MELSEC-Q series
CPU module (hereinafter referred to as the programmable controller CPU).
(1) Channel isolated
The module is isolated between the channels and between the external supply
power and channels.
(2) High accuracy
The reference accuracy
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coefficient is as high as
1: Accuracy attained at the ambient temperature when offset/gain setting has
been made
2: Accuracy per temperature change of 1°C
Example) Accuracy when the ambient temperature varies from 25°C to 30°C
0.1% (reference accuracy) + 0.008%/°C (temperature coefficient)
5°C (temperature variation difference) = 0.14%
(3) Output range switching
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The output range
1: The output range indicates the offset/gain setting type. Besides the generally
often used output ranges available as defaults, the user can make
offset/gain settings and use the values.
(4) Analog output HOLD/CLEA function
This function is used to set whether the analog output value will be held or
cleared when the CPU module is in a STOP status or when a stop error occurs.
(5) Output monitor function
The analog output value output by D/A conversion is reconverted into a digital
value within the Q62DA-FG and the result is stored into the buffer memory as an
output monitor value.
(6) Warning output function
A warning is output if a digital input value falls outside the setting range.
(7) Rate control function
The increment and decrement of the analog output value per conversion cycle
can be restricted.
(8) Disconnection detection function
When the analog output range is 4 to 20mA, 4 to 20mA (Extended mode), or
user range setting 1, the output monitor value is watched to detect disconnection.
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is as high as 0.1% and the temperature
80ppm/°C.
switching can be set easily from GX Developer.
MELSEC-Q
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