IMO VXSM75-1 - Page 60

Selecting Functions 5-31
5
■ Upon success of retry
■ Upon failure of retry
Fan stop operation
•
With this function, the temperature of the heat
sink is detected while the inverter is turned
on, to turn on or off the cooling fan
automatically. If this function is not selected,
the cooling fan rotates at all times.
Setting 0: No on/off control
1: On/off control (thermostat)
ACC/DEC pattern (Mode select)
•
Select the acceleration/deceleration mode.
Setting 0: Inactive
(linear acceleration/deceleration)
1: S-curve acceleration/deceleration
(Weak)
2: S-curve acceleration/deceleration
(Strong)
3: Non-linear (for variable torque)
When the function is set at "1", "2" or "3", a
change in the acceleration or deceleration time
during acceleration or deceleration is not
reflected immediately. The setting becomes
effective after a constant speed is reached or
the inverter is stopped.
H07
H06
[S-curve acceleration/deceleration]
To reduce the shock of the mechanical system,
the change in the output frequency is made
smooth when the frequency is set.
<Constant of each pattern>
When the acceleration/deceleration time is
extremely long or short, the result is linear
acceleration/deceleration.
[Curved acceleration/deceleration]
Use this option to minimize the
acceleration/deceleration time for an
acceleration/deceleration pattern of the motor
including the operation zone in the constant
output range.
H07 = 1 H07 = 2
(slow S-curve (steep S-curve
pattern) pattern)
Range of 0.05 x
S-curve (Maximum (Maximum
(α) output
frequency [Hz]) frequency [Hz])
S-curve 0.10 x 0.20 x
time (Acceleration (Acceleration
during time [s]) time [s])
acceleration
on (ßacc)
S curve 0.10 x 0.20 x
time (Deceleration (Deceleration
during time [s]) time [s])
deceleration
on (ßacc)
α
α
β
β
β
β