LSIS sv-ip5a - FU1-10~12: Pre-Heat (to Use Pre-Heat Function)

Chapter 6 - Parameter Description [FU1]
6-11
time * Starting Curve ratio/2 + Preset decel time *
Ending curve ratio/2
[Accel/Decel Pattern: ‘U-curve’]
FU1-10~12: Pre-heat (to use Pre-heat function)
This function enables a motor to prevent moisture
from entering and not to develop condensation inside
at stop in a humid area by supplying DC current to
the motor continuously.
Pre-heat function is activated when FU1-10 [Pre-
heat] is set to “Yes”, one of the Programmable digital
input terminals in I/O-20~27 set to “Pre-heat” and the
defined terminal is turned ON. Only active at inverter
stop.
 FU1-11 [Pre-heat value] is set in percent of
motor rated current.
 FU1-12 [Pre-heat duty] sets the duty for 10
seconds. At 100% setting, DC current is
continuously supplied to the motor.
☞ Caution: Parameter change is disabled during
pre-heat function. Remove the reference command
at the terminal before programming.
☞ Caution: Reduce FU1-11 [Pre-heat value] or
FU2-12 [Pre-heat duty] when inverter or motor is
overheated.
Output Frequency
Time
Acc. Pattern Dec. Pattern
Pre-heat
DC
current
value
[FU1-11]
10 sec
RUN
Pre-Hea
t
On%
[
FU1-12
]
FU1 ► Pre-HeatMode
10 No
0 10
Factory Default: No 0