5.3 Description of Function Codes
5-130
■ Low current detected – “IDL”
This signal turns ON when the output current drops below the level specified by E37 (Low current detection, Level)
for the period specified by E38 (Timer). When the output current exceeds the “Low current detection level plus 5%
of the inverter rated current,” it goes OFF. (The minimum ON-duration is 100 ms.)
E36
Frequency detection 2 (refer to E31)
Refer to the description of E31.
E37, E38
Current detection 2/Low current detection (level and timer) (refer to E34)
For details about Current detection 2/Low current detection (level) (timer), refer to the description of E34.
E39
Display coefficient for transport time
Related function code: E50 (Display coefficient for speed monitor)
E39 specifies the constant-rate feeding time, load shaft speed, coefficient for line speed setting, and coefficient for
output status monitor indication.
Formula
(E39)time transport for tcoefficienDisplay
0)mon
itor(E5 speed for tcoefficienDisplay
(min)rateConstant =
Load shaft speed = (E50: Display coefficient for transport time) x Frequency (Hz)
Line speed = (E50: Display coefficient for transport time) x Frequency (Hz)
The “Frequency” in the above formula is set frequency when each indication is the setting value (constant-rate
feeding time setting, load shaft speed setting, and line speed setting), whereas it is output frequency before slip
compensation when the indication is output status monitor.
When the constant-rate feeding time is 999.9 (min) or greater, or the denominator on the above formula is 0, “999.9”
is displayed.
E42
LED display filter
Excluding speed monitor (when E43 = 0), E42 specifies a filter time constant to be applied for displaying the output
frequency, output current and other running status monitored on the LED monitor on the keypad. If the display
varies unstably so as to be hard to read due to load fluctuation or other causes, increase this filter time constant.
• Data setting range: 0.0 to 5.0 (s)
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