Rate Control Function - Mitsubishi Electric Q66DA-G User Manual

3
SPECIFICATIONS
3.2.4

Rate control function

(1) The increase and decrease in analog output values per 6ms
can prevent rapid change of the values.
(2) To use this function, the following settings are required for each setting.
(3) Although values on a per-6ms basis are set in CH
value (Un\G70 to Un\G81), the actual cycle in which the Q66DA-G updates analog
values is (6ms x number of conversion-enabled channels).
Therefore, the maximum increase/decrease in analog output values under the rate
control is a D/A converted value of (Increase/decrease digital limit value x No. of con-
version-enabled channels).
[Example Control of channel 3 when No. of conversion-enabled channels is 1 to 3]
Digital input value
1500
Increase/decrease
digital limit value
(100)
*1 6ms is the D/A conversion cycle per channel.
• Enable the rate control function: Rate control enable/disable setting (Un\G46)
• Set the increase/decrease of analog output value per 6ms: CH
decrease digital limit value (Un\G70 to Un\G81)
• Output range: -10 to 10V
• Increase digital limit value: 100
• Decrease digital limit value: 100
0
0 18 36 54 60
Update cycles of
6ms analog output value (18ms)
When the digital input value changes, the analog output value increases or decreases
in update cycles as follows:
1st time: D/A converted value of the upper/lower digital limit value
2nd time or later: D/A converted value of (Increase/decrease digital limit value x No.
of conversion-enabled channels)
Increase/decrease digital limit
78 96 114 132 150 168
time(ms)
3.2.4 Rate control function
*1
can be limited, which
Increase/
Digital input value
Analog output value
Voltage of analog
output value (mV)
937.5
0.0
186 204
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3.2 Function List
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3
4
5
6
7
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