Chapter 4 Parameters
VFD-EL-W
4-24
Frequency Hold
Applications Purpose Functions
Related
Parameters
General application
Acceleration /
deceleration pause
Hold output frequency during acceleration
/ deceleration
04.06–04.08
Auto-restart after Fault
Applications Purpose Functions
Related
Parameters
pumps
For continuous and
reliable operation
The AC motor drive can automatically
restart / reset up to 10 times after a fault
occurs.
08.15, 08.16
Emergency Stop by DC Brake
Applications Purpose Functions
Related
Parameters
High-speed rotors
Emergency stop without
brake resistor
The AC motor drive can use the DC
brake for emergency stop when a quick
stop is needed without a brake resistor.
Take motor cooling into consideration
when using DC braking often.
08.00–08.03
Over-torque Setting
Applications Purpose Functions
Related
Parameters
Pumps, fans and
extruders
To protect machines and
for continuous / reliable
operation
Set the over-torque detection level.
When OC stall, OV stall or over-torque
occurs, the drive automatically adjusts
the output frequency. It is suitable for
machines like fans and pumps that
require continuous operation.
06.00–06.05
Upper / Lower Limit Frequency
Applications Purpose Functions
Related
Parameters
Pumps and fans
Control the motor speed
within upper / lower limit
When you cannot provide the upper /
lower limit, gain or bias from external
signals, you can set the limits in the AC
motor drive.
01.07
01.08
Skip Frequency Setting
Applications Purpose Functions
Related
Parameters
Pumps and fans
To prevent machine
resonance vibration
The AC motor drive does not run at
constant speed in the skip frequency
range. You can set up to three skip
frequency ranges.
08.09–08.14
Carrier Frequency Setting
Applications Purpose Functions
Related
Parameters
General application Reduce noise
Increase the carrier frequency to reduce
motor noise.
02.03
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