Operating Instructions

Descriptions of Parameter Settings
Descriptions of Parameter Settings
193 | 443
Pr.
Explanation
Settings
Default
07-19
Fan cooling control
0: Fan is always ON
1: Fan is OFF after the AC motor drive stops for one minute.
2: Fan is ON when the AC motor drive runs, fan is OFF when the AC
motor drive stops.
3: Fan turns ON when temperature (IGBT) reaches around 140°F
(60°C).
3
Use this parameter to control the fan.
0: Fan runs immediately when the drive power is turned ON.
1: Fan runs when the AC motor drive runs. One minute after the AC motor drive stops, the fan is
OFF.
2: Fan runs when the AC motor drive runs and stops immediately when the AC motor drive stops.
3: When temperature of the IGBT or capacitance is higher than 60
o
C, the fan runs.
When both the temperature of the IGBT and capacitance are lower than 40
o
C, the fan stops.
Pr.
Explanation
Settings
Default
07-20
Emergency stop (EF) and force to
stop selection
0: Coast to stop
1: Stop by the first deceleration time
2: Stop by the second deceleration time
3: Stop by the third deceleration time
4: Stop by the fourth deceleration time
5: System deceleration
6: Automatic deceleration
0
When the multi-function input terminal setting is set to 10 (EF input) or 18 (force to stop) and the terminal contact is
ON, the drive stops according to the setting of this parameter.
Pr.
Explanation
Settings
Default
07-21
Automatic energy-saving setting
0: Disable
1: Enable
0
● When energy-saving is enabled, the motor acceleration/deceleration operates with full voltage. During constant
speed operation, it automatically calculates the best voltage value according to the load power. This function is
not suitable for fluctuating loads or loads which are nearly full during operation.
● When the output frequency is constant (that is, constant operation), the output voltage decreases automatically
as the load decreases. Therefore, the drive operates with minimum multiplication of voltage and current
(electric power) to reach the energy-saving.
Pr.
Explanation
Settings
Default
07-22
Energy-saving gain
10 to 1000%
100
● When Pr.07-21 is set to 1, use this parameter to adjust the energy-saving gain. The default is 100%. If the
result is not satisfactory, adjust it by decreasing the setting value. If the motor oscillates, then increase the
setting value.
● In certain applications such as high-speed spindles, the temperature rise in the motor is a major concern. When
the motor is not in working state, reduce the motor current to a lower level. Reduce this parameter setting to
meet this requirement.