Hitachi WJ200 Series Quick Reference Manual page 39

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 frequency (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 Terminal
Code Symbol
FA1 Frequency Arrival
01
Type 1 – Constant
Speed
FA2 Frequency Arrival
02
Type 2 – Over
frequency
FA3 Frequency Arrival
06
Type 3 – Set
frequency
FA4 Frequency Arrival
24
Type 4 – Over
frequency (2)
FA5 Frequency Arrival
25
Type 5 – Set
frequency (2)
11, 12, AL0 – AL2
Valid for inputs:
C042, C043, C045, C046,
Required
settings
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 1.5Hz
•
The output turns OFF as the output
frequency moves away from the threshold,
delayed by 0.5Hz
•
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
Function Name State
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Description
when output to motor is at the constant frequency
when output to motor is OFF, or in any acceleration or
deceleration ramp
when output to motor is at or above the set frequency
thresholds for, even if in acceleration or decel ramps
when output to motor is OFF, or during accel or decel
before the respective thresholds are crossed
when output to motor is at the set frequency
when output to motor is OFF, or in any acceleration or
deceleration ramp
when output to motor is at or above the set frequency
thresholds for, even if in acceleration or decel ramps
when output to motor is OFF, or during accel or decel
before the respective thresholds are crossed
when output to motor is at the set frequency
when output to motor is OFF, or in any acceleration or
deceleration ramp
Example for terminal [11] (default output configuration
shown – see page 3-54):
Inverter output
terminal circuit
CM2
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see
Inverter logic
circuit board
AL0 AL1
Power
supply
See I/O specs on page 4-6
37
FA1
11
RY
page 54):
FA1
AL2
Load