4−57
Overload Advance Notice Signal
When the output current exceeds a
preset value, the [OL] terminal
signal turns ON. The parameter
C041 and C111 sets the overload
threshold. (Two thresholds can be
set.) The overload detection circuit
operates during powered motor
operation and during regenerative
braking. The output circuits use
open-collector transistors, and are
active low.
Option
Code
Terminal
Symbol
Function Name State Description
03
OL Overload Advance
Notice Signal
ON when output current is more than the set threshold
for the overload signal
OFF when output current is less than the set threshold
for the overload signal
26
OL2 Overload Advance
Notice Signal
ON (Same as above)
OFF (Same as above)
alid for inputs:
11, 12, AL0 – AL2 Example for terminal [11] (default output
configuration shown – see page 3-90):
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see page 4-52 and 3-90):
See I/O specs on page 4-6
Required settings
C041, C111
Notes:
• The default value is 100%. To change the level
from the default, set C041 (overload level) and/or
C111 (overload level (2)).
• The accuracy of this function is the same as the
function of the output current monitor on the [FM]
terminal (see “Analog Output Operation” on page
4–55).
• The example circuit for terminal [11] drives a relay
coil. Note the use of a diode to prevent the
negative-going turn-off spike generated by the coil
from damaging the inverter’s output transistor.
t
Output
current
Threshold
Threshold
C041
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