N700 Operating Instructions and Parts Manual
10. Explanation of O-Group
115
(8) Output over setting frequency (2 : FA2, 19 : FA4)
When the output is over the arrival frequency set in [o018, o019 (FA 2)], [o020, o021 (FA 4)],
on adjustable speed time, the output relay is switched.
Fig. 10- 9 Output over setting frequency (2 : FA2, 19 : FA4)
(9) Output (6 : FA 3, 20 : FA 5) setting frequency
The signal is switched only when the output frequency matches the arrival frequency set in
[o018, o019 (FA 2)], [o020, o021 (FA 4)], on adjustable speed time.
Fig. 10- 10 Output (6 : FA 3, 20 : FA 5) setting frequency
10.2.3
Overload advance notice signal (OL/OL2)
(1) The Inverter monitors the motor current on acceleration and constant speed, when the
inverter reaches the overload restriction level, the Inverter will reduce the output frequency
automatically to restrict the overload.
(2) When the amount of a load is high, it is possible to adjust the gain by outputting an overload
advance notice. It is used to prevent damage to the machine from too much load, i.e.
baggage on a conveyor, the Inverter overload protection will operate.
(3) Assign 03(OL) or 21(OL2) to an intelligent output terminal 11-14.
Code
value
Function name
Output
state
Contents
OFF
In case output current is smaller than value that set in
overload advance notice level setting (o026)
3
OL
Overload advance
notice signal
ON
In case output current is bigger than value that set in
overload advance notice level setting (o026)
OFF
In case output current is smaller than value that set in
overload advance notice level (o027)
21
OL2
Overload advance
notice signal 2
ON
In case output current is bigger than value that set in
overload advance notice level (o027)
Table 10- 8 Overload advance notice signal (OL/OL2)
Setting frequency
f
on
: 1% of maximum frequency
f
off
: 2% of maximum frequency
Setting frequency
f
on
: 1% of maximum frequency
f
off
: 2% of maximum frequency