User Manual
EM303B General Purpose Inverter
143
Power Failure Control at Power-on
8.11.9
Non-Stop Control at Instantaneous Power Failure
No.
Function
Range
Unit Default Type
F9-17
Non-Stop Control Options at
Instantaneous Power Failure
0: Disabled
1: Enabled
0
〇
F9-20
Control Voltage of Non-Stop at
Instantaneous Power Failure
0~800
V
537
●
F9-21
Proportion Gain of Non-Stop at
Instantaneous Power Failure
0.00~300.00
0.50
●
F9-22
Integral Time of Non-Stop at
Instantaneous Power Failure
0.00~600.00
S
1.50
●
F9-23
Base Time ofNon-Stop at Instantaneous
Power Failure
0.00~600.00
S
2.00
●
Non-stop function at instantaneous power failure is only applied to the occasions when a
sudden grid power failure occurs but power resumes soon later.
F9-17=0
: Disabled. If there was an instantaneous power failure in running, inverter trips
fault and enters fault status, and motor is ramp-to-stop.
F9-17=1
: Enabled. If there was an instantaneous power failure in running, inverter will
remain DC bus voltage to keep motor running continuously by calculating ramp-to-stop
time automatically based on load. When power resumed in ramp-to-stop, inverter runs
normally.
F9-20
:
The DC bus voltage of non-stop at instantaneouspower failure is taken the setting
value of F9-20 as the target value for adjusting deceleration time.
F9-21
~
F9-23
are for calculating and adjusting the deceleration time of non-stop at
instantaneouspower failure. PI regulation is adopted to ensure that inverter can run with
proper DC bus voltage. Users can adjust PI parameters based on load.
8.11.10
Start Delay Time After Power-on
No.
Function
Range
Unit
Default
Type
F9-24
Start Delay Time
After Power-on
0.00
~
10.00 (The time for
inverter to wait for the initial
operation after power-on)
S
1.00
●
F9-24 sets the waiting time of system initialization when inverter is power-on. If inverter is
required to run immediately after power-on, it can be set as 0.
8.11.11
Command Control
No.
Function
Range
Unit Default Type
F9-25
Terminal Operation
Command Control
0: Terminal shall be off first, and
then on.
1: Inverter will run directly
1
〇
F9-25=0
Terminal shall be off first, and then on.
If the start/stop control mode is in 2-wire sequence and the terminal is ready, when PLC