Jntech JNP22KH-V5, User Manual

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7.5 Inverter Operation Mode Switch
There are two kinds of operation mode of Inverter, one is Vector Control as default, and
the other one is VF Control. If you want to try VF, or the performance of Vector is not
good, please refer to the following step:
First: Stop inverter, and ensure it’s standby;
Second: Refer to “
8.3.2.2 DSP parameter setting
” to set the “DebugMode” as “3”;
Third: Refer to “
8.3.2.2 DSP parameter setting
” to set the “Run-Mode” as “CVT”;
Forth: Set the “UINST” as “0.85*“Vin””(standby);
Fifth: Return to main interface, long-press “ON/OFF” for 4S to start inverter.
7.6 Overload current setting
After the success of first commissioning, please refer to “
8.3.2.2 DSP parameter
setting
” to set the “Imotor” as 1.1 times of “I-Rated”.
7.7 Stop Frequency Setting
Solar pumping system for the first time trial run is successful, need to set the system
shutdown frequency, as follows.
Step 1: Ensure the system is running and there has water output. To enter “StopFreq”
interface. Please refer to
“
8.3.2.2 DSP parameter setting
”.
Step 2: To reduce the value of “StopFreq”. Reduce 5 each time (every change need to
press “ENTER” to confirm). Keep reducing till there just has no water output, and
make a small change to just get small water come out, and the value is the very
data of “StopFreq”.
Step 3: Escape the “StopFreq” interface.
Finish the debugging.
Note
！
The set of “StopFreq” can ensure inverter stop working when the output power