Hitachi WJ200-001L, Instruction Manual

Page: 262 / 680

4

55
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
Code
Terminal
Symbol
Function Name State Description

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

FA2 Frequency Arrival
Type 2
– Over
frequency
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

FA3 Frequency Arrival
Type 3
– Set
frequency
ON when output to motor is at the set frequency
OFF when output to motor is OFF, or in any acceleration or
deceleration ramp

FA4 Frequency Arrival
Type 4
– Over
frequency (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

FA5 Frequency Arrival
Type 5
– Set
frequency (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
Example for terminal [11] (default output configuration
shown
– see page 3-89):
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration
– see
page 4-51 and 3-91 ):
See I/O specs on
page 4-6
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
RY
Inverter output
terminal circuit
CM2 11
FA1
AL1
Power
supply
Load
AL0 AL2
Inverter logic
circuit board FA1