Overload Advance Notice Signal - Omron 3G3MX2 User Manual

Using Intelligent Output Terminals
4-6-7

Overload Advance Notice Signal

When the output current exceeds
a preset value, the [OL] terminal
signal turns ON. The parameter
 
and 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 Terminal
Code Symbol

OL Overload
warning

OL2 Overload
warning 2
Valid for inputs: 11, 12, AL0 - AL2
, 
Required settings:
Notes:
• The default value is 100%. To change the level from the default, set  (overload
level) and/or  (overload level (2)).
• The accuracy of this function is the same as the function of the output current mon-
itor on the [FM] terminal (see Analog Output Operation on page 252).
• 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.
Output
current
C041 C111 /
/
C041 C111
[OL]/[OL2] 1
signal
0
Function State
Name
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
ON (Same as above)
OFF (Same as above)
Section 4-6
Threshold
Power running
Regeneration
Threshold
ON ON
Description
231
t