5.4 Details of Function Codes
5-154
Motor overload early warning OL
This function is used to preliminarily detect the presage before the motor overload detect (alarm
0l1
) occurs
in order to execute the process properly. The motor overload early warning operates at the current or higher
that is set by the overload preliminary operation level. In typical cases, E34 data is set to 80 to 90% of the
current value of the electric thermal (operation level). Set the thermal characteristics of the motor is set with
the electric thermal (motor characteristics select and thermal time constant).
Current detected ID, Current detected 2 ID2, and Current detected 3 ID3
When the inverter output current exceeds the level set by the current detect (timer) or higher, and when the
current continues for the set time or longer, an ON signal is output. When the output current decreases
below 90% of the rated operation level of the output current. The minimum output signal range: 100 ms)
Fig. 5.4-66
Low current detected IDL
This function outputs an ON signal when the inverter output current decreases to the set level of the current
detect (operation level) and the current continuous to the set time of the current detect (timer) or longer. This
signal turns off when the output current exceeds the "Operation level + +5% of the inverter rated current."
(The minimum output signal range: 100 ms)
Fig. 5.4-67
E36
Frequency Detection 2 (See E31)
For the setting of frequency detect 2, see the section describing the function code E31.
E37, E38
Current Detect 2/Low Current Detect (Operation Level, Timer) (See E34)
For the setting of current detect 2/low current detect (operation level) (timer), see the section describing the
function code E34.
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