80 • Control Keypad
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7.7.6 Energy Save & Slow Speed Parameters – page 5
EN. SAVE & SL. SPD
PARAMETERS
Displays in MAXIMIZED MODE only
(refer to section
6.5.1 page 56 for changing mode)
Display and Default
Values
Range Description Remarks
Activated when the motor has a light load for
extended periods of time. Supply voltage to the
motor decreases (lowering the rotating magnetic
field intensity), thus reducing the reactive current
and copper/iron losses.
In order to activate this function:
• Program PROG. INPUT #7 to ENERGY SAVER
(refer to section
7.7.8 on page 83)
• Connect control inputs voltage to input terminal
7
Note
:
When using Energy Save function, harmonics
should be taken into consideration. At maximum
energy save settings, the 5
th
harmonic may
exceed 30% of the RMS current value.
SAVING ADJUST.
0 (MIN)
0(MIN.) –
10(MAX.)
Sets required
energy saving
level.
ATTENTION!
To meet CE standards while in
energy save mode, the user
may be required to employ
additional mitigation methods.
SLOW SPEED TORQ.
8
1(MIN.) –
10(MAX.)
Sets SLOW
SPEED
TORQUE.
Determines the torque while motor is operating at
1/6 of nominal speed. Refer to section
7.7.8.1 on
page 84.
MAX SLOW SP TIME
30 SEC.
1-30sec.
Note:
The range
of the MAX
SLOW SP
TIME can
Sets maximum
time for SLOW
SPEED
TORQUE
operation.
Determines the maximum allowable operation
time at slow speed.
RVS-DN will trip when this time is exceeded and
a LONG SLOW-SPEED TIME message will
display.
be
extended to
1-250 by
using the
EXPANDED
SETTING
as
described in
section
6.5.5 page
58.
WARNING!
Operating current while motor is
running at 1/6 speed is much
higher than nominal current and
motor ventilation is much
weaker. Special caution must be
taken to prevent overheating
when running the motor at slow
speed for long periods of time.
STORE ENABLE
EN.SAVE & SL.SPD
Same as STORE ENABLE MAIN
PARAMETERS on page 71.
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