Variety Of Functions To Support Various Applications; Traverse Function; Conveyor; Fan And Pump - Mitsubishi Electric FREQROL-CS80 Manual

Features
Variety of Functions to
Support Various Applications
1
Spinning

Conveyor

Fan and pump

8

Traverse function

The traverse function, used for the
traverse axis of spinning machine,
prevents uneven winding or collapsing.
Output frequency (Hz)
Traverse operation
f2
f1
f0
f1
f3
t2 t1
ON
X37 signal
ON
STF (STR)
signal
f0: set frequency f3: compensation amount at transition from
f1: amplitude amount from the set frequency deceleration to acceleration
f2: compensation amount at transition from t1: time for acceleration during traverse operation
acceleration to deceleration t2: time for deceleration during traverse operation
Increased excitation
deceleration
The deceleration time can be reduced
without using a brake resistor.
The tact time can be reduced for a
transfer line or the like.
Communication operation
(RS-485 communication)
Conveyor belts can be controlled
individually by using multiple inverters.
Automatic operation is possible by
collectively managing multiple inverters.
Optimum excitation control
This control enables the motor efficiency to
its optimum. More energy saving is possible
in applications with variable load torque
characteristic such as fan and pump.
Optimum excitation control
100
80
More energy saving
60
40
V/F control
20
0 20 40 60 80 100
Motor load torque (%)
[Comparison of Mitsubishi products]
Power failure time
decelerationto-stop function
The motor decelerates to a stop without
coasting when power failure or undervolt-
age occurs. Slack in the thread can be
controlled even if there is a power failure.
Continuous operation function
at instantaneous power failure
Even in the event of an instantaneous
Time (s)
power failure, motor operation
continues without coasting and
production is maintained.
S-pattern
acceleration/deceleration
An S-pattern is maintained from the
present frequency to the target frequency;
therefore it is possible to reduce shock
during acceleration/deceleration and
prevent load shifts.
Output frequency
(Hz)
PID control
Flow rate and air volume is controlled
by an inverter. It is possible to
regulate flow rate and air volume so
that they stay at a pre-set level.
Adjustable 3 points V/F
The optimal V/F pattern matching the
torque characteristics of the facility
can be set.
Time