Mitsubishi Electric Q66DA-G, Руководство пользователя

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3
SPECIFICATIONS
3.2 Function List
3.2.4 Rate control function
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3.2.4 Rate control function
(1) The increase and decrease in analog output values per 6ms
*1
can be limited, which
can prevent rapid change of the values.
*1 6ms is the D/A conversion cycle per channel.
(2) To use this function, the following settings are required for each setting.
• Enable the rate control function: Rate control enable/disable setting (Un\G46)
• Set the increase/decrease of analog output value per 6ms: CH Increase/
decrease digital limit value (Un\G70 to Un\G81)
(3) Although values on a per-6ms basis are set in CH Increase/decrease digital limit
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]
• Output range: -10 to 10V
• Increase digital limit value: 100
• Decrease digital limit value: 100
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)
Digital input value
1500
0
937.5
0.0
0 18 36
Update cycles of
analog output value (18ms)
Increase/decrease
digital limit value
(100)
6ms
54 60 78 96 114 132 150 168 186 204
time(ms)
Digital input value
Analog output value
Voltage of analog
output value (mV)