Mitsubishi Electric MELSEC-Q series User Manual page 48

(3) Peak current detection time
The setting range of CH Peak current detection time (Un\G318 to Un\G325) is 10 to 10000ms.
Set CH Peak current detection time (Un\G318 to Un\G325) to an integral multiple of the sampling cycle.
When CH Peak current detection time (Un\G318 to Un\G325) is not set as the integral multiple of the sampling
cycle, the peak current is detected in the maximum cycle that satisfy both of the following.
• Peak current detection time or less
• Integral multiple of the sampling cycle
When the sampling cycle setting and peak current detection time is set to 100ms/8CH and 950ms, the
Ex.
peak current is detected in 900ms intervals (integral multiple of 100ms).
(4) Clearing the notification of the peak current detection
Check that a digital output value is the peak current detection value or less, and turn on then off Error clear
request (YF).
When the notification of the peak current detection is cleared, the CT input module results in the following states:
• Peak current detection flag (Un\G301) is cleared.
• Peak current detection signal (X7) turns off.
• The ALM LED turns off.
• The alarm code 120 which is stored in Latest error code (Un\G19) is cleared.
When Error clear request (YF) is turned on then off in the condition where a digital output value exceeds the peak current
detection value, the peak current detection is notified again after a lapse of the peak current detection time.
(5) Detection target
CH Digital output value (Un\G11 to Un\G18) is a target regardless of the use of the scaling function.
(6) Setting procedure
1.
Set Enable (0) to Conversion enable/disable setting (Un\G0).
2.
Set Enable (0) to Peak current detection setting (Un\G300).
3.
Set values to CH Peak current detection time (Un\G318 to Un\G325) and CH Peak current
detection value (Un\G326 to Un\G333).

CH Peak current detection time (Un\G318 to Un\G325)

CH Peak current detection value (Un\G326 to Un\G333)
*1 Set an integral multiple of the sampling cycle. If not, the peak current is detected in the maximum cycle that satisfies
both of the following.
• Peak current detection time or less
• Integral multiple of the sampling cycle
In addition, set a value per 10ms unit. A value per 1ms unit is rounded off.
4.
Turn on then off Operating condition setting request (Y9).
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Item Setting range
*1
10 to 10000 (ms)
0 to 11999