Hitachi CP-X200 Instruction Manual page 189

4 − 40
4 40
Frequency Arrival Signals
Frequency Arrival
The
current velocity profile of the inverter. As the name implies, output [FA1] turns ON
when the output
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
01 FA1
02 FA2
Valid for inputs:
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 delay time of the output signal is 60 ms
(nominal).
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.
group of outputs helps coordinate external systems with the
frequency arrives
Function Name State
Frequency Arrival
Type 1 – Constant
OFF
Speed
Frequency Arrival
Type 2 – Over
frequency
OFF
11, AL0 – AL2
(none)
at the standard set frequency (parameter F001).
ON when output to motor is at the set frequency
when output to motor is OFF, or in any
acceleration or deceleration ramp
ON when output to motor is at or above the set
frequency thresholds for, even if in acceleration or
deceleration ramps
when output to motor is OFF, or during
acceleration or deceleration before the respective
thresholds are crossed
Example for terminal [11] (default output
configuration shown – see page 3-54):
Inverter output
terminal circuit
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see
Inverter logic
circuit board
AL0
Power
supply
See I/O specs on page 4-6
Description
FA1
CM2 11
RY
page 54):
FA1
AL1 AL2
Load