Omron MX2 User Manual

202
Using Intelligent Output Terminals Section 4-6
4-6-6 Frequency Arrival Signals
The Frequency Arrival group of outputs helps coordinate external systems
with the current velocity profile of the inverter. As the name implies, output
[FA1] turns ON when the output frequency arrives at the standard set fre-
quency (parameter F001). Output [FA2] relies on programmable accel/ decel
thresholds for increased flexibility. For example, you can have an output turn
ON at one frequency during acceleration, and have it turn OFF at a different
frequency during deceleration. All transitions have hysteresis to avoid output
chatter if the output frequency is near one of the thresholds.
Option
Code
Terminal
Symbol
Function Name State Description
01 FA1 Frequency Arrival
Type 1 – Constant
Speed
ON when output to motor is at the constant frequency
OFF when output to motor is OFF, or in any acceleration or
deceleration ramp
02 FA2 Frequency Arrival
Type 2 – Over fre-
quency
ON when output to motor is at or above the set frequency
thresholds for, even if in acceleration or decel ramps
OFF when output to motor is OFF, or during accel or decel
before the respective thresholds are crossed
06 FA3 Frequency Arrival
Type 3 – Set fre-
quency
ON when output to motor is at the set frequency
OFF when output to motor is OFF, or in any acceleration or
deceleration ramp
24 FA4 Frequency Arrival
Type 4 – Over fre-
quency (2)
ON when output to motor is at or above the set frequency
thresholds for, even if in acceleration or decel ramps
OFF when output to motor is OFF, or during accel or decel
before the respective thresholds are crossed
25 FA5 Frequency Arrival
Type 5 – Set fre-
quency (2)
ON when output to motor is at the set frequency
OFF when output to motor is OFF, or in any acceleration or
deceleration ramp
Valid for inputs: 11, 12, AL0 - AL2
Required settings: C042, C043, C045, C046
Notes:
• For most applications you will need to use only one type of frequency arrival outputs (see examples). However,
it is possible assign both output terminals to output functions [FA1] and [FA2]
• For each frequency arrival threshold, the output anticipates the threshold (turns ON early) by 1.5 Hz
• The output turns OFF as the output frequency moves away from the threshold, delayed by 0.5 Hz
• 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

Omron MX2 Specifications

General

Brand	Omron
Model	MX2
Category	Inverter
Language	English