4
-
157
(4)
Set the pre-excitation time (07-37) based on the electrical time constant T2
07- 38
Pre-excitation level
Range
【
50~200
】%
(1)
Use the pre-excitation initial level (07-38) to provide a higher excitation current during the
pre-excitation time (07-37), which will increase the speed and stability for motors.
(2)
In order to quickly magnetize the motor, reduce the pre-excitation time (07-37) and set the
pre-excitation level (07-38) to a high level.
(3)
If 07-38 is set greater than 100%, providing a high excitation current during the pre-excitation
time (07-37), motor
’
s magnetization time is shorted. When the setting reaches 200%,
magnetization is reduced by roughly half.
(4)
A high pre-excitation level (07-15) might result in excessive motor sound during pre-excitation.
(5)
When the flux reaches 100%, pre-excitation current reverts back to 100% and pre-excitation is
completed, refer figure 4.3.62。
Figure 4.3.62 Pre-excitation operation
07- 39
Short-Circuit Braking Time of PM Motor Speed Search Function
Range
【0.00~100.00】Sec
07- 40
DC injection Braking Time of PM Motor Speed Search Function
Range
【0.00~100.00】Sec
If the motor speed lower than inverter control speed, inverter can stop the motor by parameter
07-39 and 07-40 and restart. If the motor speed higher than inverter control speed, inverter will
be started by actual speed, no matter the setting value of parameter 07-39 and 07-40.
07- 45
STP2 Function Selection
Range
【0】:STP2 is enabled
【1】:STP2 is disabled
If STP2 is enabled, when 00-02=1 and external operation signal is tripped, keypad will display
“
Terminal STOP
”
error when stop command comes from keypad.
If STP2 is disabled, when 00-02=1 and external operation signal is tripped, keypad will not
display
“
Terminal STOP
”
error when stop command comes from keypad.
Summary of Contents for E510-201-SH
Page 1: ......
Page 28: ...3 14 b 200V 2HP 1 3PH 200V 3HP 20HP 400V 3HP 25HP IP20 NEMA1 ...
Page 29: ...3 15 c 200V 25HP 400V 30HP d 200V 30HP 40HP 400V 40HP 75HP ...
Page 51: ...3 37 3 5 Standard Wiring 10V AI1 AI2 AGND E P P ...
Page 72: ...4 6 4 1 4 Example of keypad operation Example 1 Modifying parameters ...
Page 74: ...4 8 4 1 5 Operation control ...
Page 206: ...4 140 Acceleration Deceleration calculation of mode 2 ...
Page 316: ...4 250 6 Timer mode 6 FLASH Timer mode 2 7 Timer mode 7 FLASH Timer mode 3 ...
Page 424: ...REVISIONS Date Manual Number Revision May 2017 4KA72X645T01 First edition ...
Page 425: ......