Delta Electronics VFD-EL series User Manual

Revision 2016/03, 6ELE, V1.14
4-23
Emergency Stop by DC Brake
Applications
Purpose Functions
Related
Parameters
High-speed
rotors
Emergency stop
without brake
resistor
AC motor drive can use DC brake for emergency stop when
quick stop is needed without brake resistor. When used often,
take motor cooling into consideration.
08.00
08.02
08.03
Over-torque Setting
Applications Purpose Functions
Related
Parameters
Pumps, fans
and extruders
To protect machines
and to have
continuous/ reliable
operation
The over-torque detection level can be set. Once OC stall,
OV stall and over-torque occurs, the output frequency will
be adjusted automatically. 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
Pump and
fan
Control the motor speed
within upper/lower limit
When user cannot provide upper/lower limit, gain or bias
from external signal, it can be set individually in AC
motor drive.
01.07
01.08
Skip Frequency Setting
Applications Purpose Functions
Related
Parameters
Pumps and
fans
To prevent
machine vibrations
The AC motor drive cannot run at constant speed in the skip
frequency range. Three skip frequency ranges can be set.
08.09~08.14
Carrier Frequency Setting
Applications Purpose Functions
Related
Parameters
General
application
Low
noise
The carrier frequency can be increased when required to reduce
motor noise.
02.03
Keep Running when Frequency Command is Lost
Applications Purpose Functions
Related
Parameters
Air
conditioners
For continuous
operation
When the frequency command is lost by system malfunction, the
AC motor drive can still run. Suitable for intelligent air
conditioners.
02.06
Output Signal during Running
Applications Purpose Functions
Related
Parameters
General
application
Provide a signal
for running status
Signal available to stop braking (brake release) when the AC
motor drive is running. (This signal will disappear when the AC
motor drive is free-running.)
03.00
Output Signal in Zero Speed
Applications Purpose Functions
Related
Parameters
General
application
Provide a signal for
running status
When the output frequency is lower than the min. output
frequency, a signal is given for external system or control
wiring.
03.00

Delta Electronics VFD-EL series Specifications

General

Brand	Delta Electronics
Model	VFD-EL series
Category	Media Converter
Language	English